Titles (148)Keywords (2)Abstracts (1)
A comparative assessment of molecular marker assays (AFLP, RAPD and SSR) for white yam (Dioscorea rotundata) germplasm characterisation, Mignouna, H., Abang, M. and Fagbemi, S. A., in: Annals of Applied Biology, volume 142, number 3, pages 269-276, ISSN 0003-4746, 2003.
 
A Dioscorea rotundata virus Disease in Nigeria, Terry, E. R., 1978.
 
A genetic linkage map of guinea yam (Dioscorea rotundata Poir.) based on AFLP markers, Mignouna, H., Mank, R., Ellis, T., Van den Bosch, N., Asiedu, R., Ng, S. Y. C. and Peleman, J., in: Theoretical and Applied Genetics, volume 105, pages 716-725, 2002. [DOI]
 
A new approach to improvement of yam (Dioscorea rotundata), Sadik, S. and Okereke, O. U., in: Nature, volume 254, pages 134-135, ISSN 0028-0836, 1975. [DOI]
 
Agrobacterium-mediated genetic transformation of yam (Dioscorea rotundata): an important tool for functional study of genes and crop improvement, Nyaboga, E., Tripathi, J., Manoharan, R. and Tripathi, L., in: Frontiers in Plant Science, volume 5, number 463, pages 1-14, ISSN 1664-462X, 2014. [DOI]
 
Agronomic and hormonal approaches for enhancing flowering intensity in white Guinea yam (Dioscorea rotundata Poir.), Mondo, J., Agre, A. P., Chuma, G. B.*, Asiedu, R., Akoroda, M. O.* and Asfaw, A., in: Frontiers in Plant Science, volume 14, number -: 1250771, pages 1-11, ISSN 1664-462X, 2023. [DOI]
 
Agronomic performance and yield stability of elite white Guinea yam (Dioscorea rotundata) genotypes grown in multiple environments in Nigeria, Olatunji, A. A., Gana, A. S.*, Tolorunse, K. D.*, Agre, A. P., Adebola, P. O. and Asfaw, A., in: Agronomy, volume 14, number 9: 2093, pages 1-16, ISSN 2073-4395, 2024. [DOI]
 
Agronomic responses of Dioscorea rotundata under low moisture stress, Odoh, N.*, Lopez-Montes, A., Fagbola, O.*, Abaidoo, R. and Asiedu, R., Abstract, P.161 in the Book of Abstracts, 16th Triennial Symposium of the International Society for Tropical Root Crops (ISTRC), 23 - 28, September, 2012.
 
An assessment of weed interference in white yam (Dioscorea rotundata Poir), Akobundu, I. and Unamma, R. P. A., 1980.
 
Assessment of some high ratio propagation technologies for quality seed yam tuber production in Dioscorea alata L. and Dioscorea rotundata Poir, Pelemo, O. S.*, University of Ibadan, 2021.
 
Association mapping of plant sex and cross-compatibility related traits in white Guinea yam (Dioscorea rotundata Poir.) clones, Asfaw, A., Mondo, J., Agre, A. P., Asiedu, R. and Akoroda, M. O.*, in: BMC Plant Biology, volume 22, number 1: 294, pages 1-12, ISSN 1471-2229, 2022. [DOI]
 
Bacterial tuber root of seed yams (Dioscorea rotundata) in Nigeria and the Republic of Benin, Ayodele, M., Hughes, J. and Asiedu, R., in: Abstract of the Eighth Triennal Symposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB) 12-16 Nov, Ibadan, Nigeria, 2001.
 
Bacterial tuber rot of seed yams (Dioscorea rotundata) in Nigeria and the Republic of Benin, Ayodele, M., Hughes, J. and Asiedu, R., in: Root crops: the small processor and development of local food industries for market economy: proceeding of the Eighth Triennial Syposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan, Nigeria, pages 597-602, 2003.
 
Biomass production and nutrient use efficiency in white Guinea yam (Dioscorea rotundata Poir.) genotypes grown under contrasting soil mineral nutrient availability, Matsumoto, R., Asfaw, A., Ishikawa, H., Takada, K., Shiwachi, H. and Asiedu, R., in: Frontiers in Plant Science, volume 13, number : 973388, pages 1-12, ISSN 1664-462X, 2022. [DOI]
 
Changes in the rhizosphere and root-associated bacteria community of white Guinea yam (Dioscorea rotundata Poir.) impacted by genotype and nitrogen fertilization, Idowu, A. P., Yamamoto, K., Koizumi, T., Matsutani, M., Takada, K., Shiwa, Y., Asfaw, A., Matsumoto, R., Ouyabe, M., Pachakkil, B., Kikuno, H. and Shiwachi, H., in: Heliyon, volume 10, number -: e33169, pages 1-15, ISSN 2405-8440, 2024. [DOI]
 
Collecte des ignames cultivees du complexe Dioscorea cayenensis-rotundata au Benin, Dansi, A., Zoundjikekpon, J., Mignouna, H. and Quin, F., in: Plant Genetic Resources Newsletter, volume 112, pages 81-85, 1997.
 
Comparative assessment of genetic diversity in tissue culture - and field - propagated white yam (Dioscorea rotundata) accession using molecular marker (SSRs) and morphological characterization, Abu, G. I.*, Cross River University of Technology, 2018.
 
Comparative assessment of genetic diversity matrices and clustering methods in white Guinea yam (Dioscorea rotundata) based on morphological and molecular markers, Darkwa, K., Agre, A. P., Olasanmi, B.*, Iseki, K., Matsumoto, R., Powell, A., Bauchet, G. J., De Koeyer, D ., Muranaka, S., Adebola, P. O., Asiedu, R., Terauchi, R. and Asfaw, A., in: Scientific Reports, volume 10, number -: 13191, pages 1-14, ISSN 2045-2322, 2020. [DOI]
 
Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata, Balogun, M., Ng, S. Y. C., Shiwachi, H ., Ng, N. Q. and Fawole, I., in: Tropical Science, volume 44, number 4, pages 196-200, 2004.
 
Comparative effects of four botanicals and chemical gibberrellic acid (GA3) on the reduction of post-harvest losses in yam (Dioscorea rotundata) in storage, Eze, S. C.*, Asiegbu, J. E., Mbah, B.*, Orkwor, G. C. and Asiedu, R., in: Paper presented at the International Workshop on Post-Harvest and consumption of yam: loss reduction and improvement of product quality for African markets; June 17-19 2003, Cotonou, 2003.
 
Control of postharvest fungal rot of white yam (Dioscorea rotundata Poir.) with botanicals, Sangoyomi, T.*, Asiedu, R. and Ekpo, E.*, in: Root crops: the small processor and development of local food industries for market economy: proceeding of the Eighth Triennial Syposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan, Nigeria, pages 545-550, 2003.
 
Determination of an effective maturity index for white yam (Dioscorea rotundata), Akinwande, B.*, Asiedu, R., Maziya-Dixon, B. and Adeyemi, I.*, in: Journal of Food, Agriculture and Environment, volume 6, number 2, pages 192-196, ISSN 1459-0255, 2008.
 
Determination of optimum sett size for white guinea yam (Dioscorea rotundata Poir.) seed yam production: trends in sprouting in the presprout nursery and field performance, Gyansa-Ameyyaw, C. E., Hahn, S. K., Alvarez, M. N. and Doku, E. V., in: Tropical root crops in a developing economy: proceedings of the 9th Symposium of the International Society for Tropical Root Crops, 20-26 October 1991, Accra, Ghana, pages 335-341, ISTRC; Government of Ghana; International Institute of Tropical Agriculture (IITA), 1994.
 
Determining photosynthetic efficiency, canopy dynamics and productivity of seed yams derived from minisetts of white Guinea yams (Dioscorea rotundata Poir), Aighewi, B. and Ekanayake, I. J., in: Book of Abstracts of the Fifth Biennial Conference of the African Crop Science Society, 21-26 Oct, Lagos, Nigeria, pages 63, 2001.
 
Development and evaluation of hybrid yams (Dioscorea rotundata Poir.) in pre-release multilocational trials in Nigeria, Orkwor, G. C., Asiedu, R., Hahn, S. K., Surma, D., Udensi, U. and Chukwu, G. O., in: Root crops: the small processor and development of local food industries for market economy: proceeding of the Eighth Triennial Syposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan, Nigeria, pages 353-355, 2003.
 
Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata), Sartie, A. M. and Asiedu, R., Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Development of mapping populations for genetic analysis in yams (Dioscorea rotundata Poir. and Dioscorea alata L.), Sartie, A. M. and Asiedu, R., in: African Journal of Biotechnology, volume 10, number 16, pages 3040-3050, ISSN 1684-5315, 2011.
 
Distribution, prevalence, and severity of damages caused by nematodes on yam (Dioscorea Rotundata) in Nigeria, Kolombia, Y. A., Kumar, P. L., Adewuyi, O., Korie, S., Viaene, N., Bert, W. and Coyne, D., in: Nematropica, volume 50, number 1, pages 1-18, ISSN 0099-5444, 2020.
 
Diversity of white Guinea yam (Dioscorea rotundata Poir.) cultivars from Benin as revealed by agro-morphological traits and SNP markers, Agre, A. P., Dassou, A. G.*, Loko, Y.*, Idossou, R.*, Dadonougbo, E.*, Gbaguidi, A. A.*, Mondo, J., Muyideen, Y., Adebola, P. O., Asiedu, R., Dansi, A.* and Asfaw, A., in: Plant Genetic Resources: Characterization and Utilization, pages 1-10, ISSN 1479-2621, 2021. [DOI]
 
Diversity studies on Guinea yam (Dioscorea rotundata) for utilization of genetic resources, Yamanaka, S., Babil, P. K., Matsumoto, R., Oli, M. T., Girma Tessema, G., Bhattacharjee, R., Gueye, B., Abberton, M., Lopez-Montes, A., Muranaka, S., Terauchi, R. and Takagi, H., Abstract, P. 28 in the program and book of abstracts of the First Global Conference on Yam 'to harness research innovations to unleash the potential of yam', 3-6 October, 2013 Accra, Ghana, 2013.
 
Domestication and evolutionary dynamics of cultivated yam (Dioscorea cayenensis /D. rotundata complex) in Benin, Dansi, A.*, Adjatin, A.*, Bhattacharjee, R., Asiedu, R., Vodouhe, R., Akouegninou, A.* and Sanni, A.*, Abstract in First Global Conference on Yam 'to harness research innovations to unleash the potential of yam', 3-6 October, 2013 Accra, Ghana, 2013.
 
Duration from vine emergence to flowering suggests a long-day or rate of change of photoperiod response in white yam (Dioscorea rotundata Poir), Ile, E., Craufurd, P., Asiedu, R. and Battey, N., in: Environmental and Experimental Botany, volume 60, pages 86-94, ISSN 0098-8472, 2007.
 
Effect of auxins on root development in yam (Dioscorea rotundata) vine, Acha, I. A.*, Shiwachi, H ., Asiedu, R. and Akoroda, M. O.*, in: Tropical Science, volume 44, number 2, pages 80-84, ISSN 1556-9179, 2004. [DOI]
 
Effect of harvest date on the dormancy period of yam (Dioscorea rotundata), Swannell, M., Wheeler, T., Asiedu, R. and Craufurd, P., in: Tropical Science, volume 43, pages 103-107, 2003.
 
Effect of method of seed bed preparation, mulching and time of planting on yam (Dioscorea rotundata) in Western Nigeria, Lal, R. and Hahn, S. K., in: Proceedings of the Third Symposium of the International Society for Tropical Root Crops held at IITA, Ibadan, Nigeria, 2-9 December, 1973, edited by C. L. A. Leakey, pages 293-306, International Society for Tropical Root Crops (ISTRC); International Institute of Tropical Agriculture (IITA), 1977.
 
Effect of mineral fertilisation on tuber yield and quality in Yams (Dioscorea alata and Dioscorea rotundata), Afolabi, F.*, Matsumoto, R., Akinwande, B.*, Otegbayo, B.* and Asfaw, A., in: Agriculture, volume 13, number 12: 2240, pages 1-14, ISSN 2077-0472, 2023. [DOI]
 
Effect of mound size and fertilizer on white guinea yam (Dioscorea rotundata) in southern Nigeria, Kang, B. and Wilson, J. E., in: Plant and Soil, volume 61, pages 319-327, 1981.
 
Effect of photoperiod on the development of inflorescences in white Guinea yam (Dioscorea rotundata), Shiwachi, H ., Ayankanmi, T. and Asiedu, R., in: Tropical Science, volume 45, number 3, pages 126-130, ISSN 0041-3291, 2005.
 
Effect of pre-plant treatments of yam (Dioscorea rotundata) setts on the production of healthy seed yam, seed yam storage and consecutive ware tuber production, Claudius-Cole, A. O., Kenyon, L. and Coyne, D., in: Journal of Agriculture and Rural Development in the Tropics and Subtropics, volume 118, number 2, pages 297-306, ISSN 1612-9830, 2017.
 
Effect of seed sett size on sprouting, shoot growth, and tuber yield of white guinea yam (Dioscorea rotundata), Iseki, K. and Matsumoto, R., in: Plant Production Science, pages 1-6, ISSN 1343-943X, 2019. [DOI]
 
Effects of methods of seedbed preparation and mulching on the growth and yield of white yam (Dioscorea rotundata) on an ultisol in south-east Nigeria, Maduakor, H. O., Lal, R. and Opara-Nadi, A. O., in: Field Crops Research, volume 9, pages 119-130, ISSN 0378-4290, 1984. [DOI]
 
Effects of silver nitrate on in vitro development of yam (Dioscorea rotundata Poir) plants, Oluwasegun, Y. R., Uchendu, E. E., Adeyemi, A. and Abberton, M., in: In Vitro Cellular & Developmental Biology - Plant, pages 1-10, ISSN 1054-5476, 2024. [DOI]
 
Effects of synthetic hormone substitutes and genotypes on rooting and mini tuber production of vines cuttings obtained from white yam (Dioscorea rotundata, Poir), Agele, S.*, Ayankanmi, T. and Kikuno, H ., in: African Journal of Biotechnology, volume 9, number 30, pages 4714-4724, ISSN 1684-5315, 2010.
 
Effects of tropical weeds on yield in white yam (Dioscorea rotundata Poir), Unamma, R. P. A. and Akobundu, I., in: Weed Research, volume 29, number 1, pages 1-6, ISSN 0043-1737, 1989.
 
Effet de la p'eriode de pollinisation manuelle sur la fructification de l'igname (Dioscorea rotundata Poir; Dioscoreaceae) en Cote d'Ivoire, Bakayoko, Y., Kouakou, A. M., Dibi, K. E. B., Ehounou, A. E., Essis, B. S., Nzue, B., Kouassi, A. B., N'guetta, A. S. and Adebola, P. O., in: European Scientific Journal, volume 15, number 27, pages 448-464, ISSN 1857-7881, 2019. [DOI]
 
Efficacy of indigenous arbuscular mycorrhizal fungi for promoting white yam (Dioscorea rotundata) growth in West Africa, Tchabi, A.*, Coyne, D., Hountondji, F., Lawouin, L., Wiemken, A. and Oehl, F., in: Applied Soil Ecology, volume 45, pages 92-100, ISSN 0929-1393, 2010. [DOI]
 
Efficacy of Oryza sativa husk and Quercus phillyraeoides extracts for the in vitro and in vivo control of fungal rot disease of white yam (Dioscorea rotundata Poir), Dania, V., Fadina, O.*, Ayodele, M. and Kumar, P. L., in: SpringerPlus, volume 3, number 1, pages 1-7, ISSN 2193-1801, 2014. [DOI]
 
Efficient elimination of Yam mosaic virus (YMV) from white yam (Dioscorea rotundata Poir.) by cryotherapy of axillary buds, Ita, E. E.*, Uyoh, E. A.*, Nakamura, I. and Ntui, V. O., in: South African Journal of Botany, volume 130, pages 123-129, ISSN 0254-6299, 2020. [DOI]
 
Elite genotypes of water yam (Dioscorea alata) yield food product quality comparable to white yam (Dioscorea rotundata), Adesokan, M., Alamu, E. O., Fawole, S., Asfaw, A. and Maziya-Dixon, B., in: Applied Sciences, volume 14, number 9: 3704, pages 1-15, ISSN 2076-3417, 2024. [DOI]
 
Evaluation of resistance to yam mosaic virus (YMV), genus Potyvirus in white yam (Dioscorea rotundata Poir.), Odu, B., Asiedu, R., Hughes, J., Shoyinka, S.* and Oladiran, O., in: Field Crops Research, volume 89, pages 97-105, 2004.
 
Evaluation of sixteen clones of selected yam (Dioscorea cayenensis-ro-tundata) in two agroecological zones in Togo, N'kpenu, E., Asiedu, R. and Tchala, W., in: 9th Triennial Symposium of the Internaitonal Society for Tropical Root Crops-Africa Branch (ISTRC-AB); October 31 to November 5, 2004, Mombasa, Kenya, 2004.
 
Evaluation of white yam (Dioscorea rotundata) genotypes for Arbuscular mycorrhizal colonization, leaf nutrient concentrations and tuber yield under NPK fertilizer application, Dare, M. O.*, Fagbola, O.*, Abaidoo, R. and Asiedu, R., in: Journal of Plant Nutrition, volume 37, number 5, pages 658-673, ISSN 0190-4167, 2014. [DOI]
 
Exploring the Bush yam (Dioscorea praehensilis Benth) as a source of agronomic and quality trait genes in white Guinea yam (Dioscorea rotundata Poir) breeding, Adewumi, A. S., Agre, A. P., Asare, P. A.*, Adu, M. O.*, Taah, K. J.*, Mondo, J. and Akaba, S.*, in: Agronomy, volume 12, number 1: 55, pages 1-16, ISSN 2073-4395, 2022. [DOI]
 
First report of Meloidogyne enterolobii causing tuber galling damage on white yam (Dioscorea rotundata) in Nigeria, Kolombia, Y. A., Kumar, P. L., Claudius-Cole, A. O.*, Karssen, G., Viaene, N., Coyne, D. and Bert, W., in: Plant Disease, volume 100, number 10, pages 2173, ISSN 0191-2917, 2016. [DOI]
 
First report of Nattrassia mangiferae as a postharvest fungal pathogen of white yam (Dioscorea rotundata) in Nigeria, Sangoyomi, T.*, Ekpo, E.* and Asiedu, R., in: Plant Disease, volume 86, number 8, pages 919, ISSN 0191-2917, 2002.
 
Flowering intensity in white yam (Dioscorea rotundata), Hamadina, E. I., Craufurd, P. Q. and Asiedu, R., in: Journal of Agricultural Science, volume 147, number 4, pages 469-477, ISSN 0021-8596, 2009.
 
Flowering, pollen grain germination, fruiting, seed germination and seedling development of white yam, Dioscorea rotundata Poir, Sadik, S. and Okereke, O. U., in: Annals of Botany, volume 39, number 3, pages 597-604, ISSN 0305-7364, 1975.
 
Genetic analysis of tuber yield and quality traits in white yam (Dioscorea rotundata Poir), Norman, P. E.*, University of Ghana, 2020.
 
Genetic diversity and relationship of Guinea yam (Dioscorea cayenensis Lam.-D. rotundata Poir. complex) germplasm in Benin (West Africa) using microsatellite markers, Loko, Y.*, Bhattacharjee, R., Agre, A. P.*, Dossou-Aminon, I.*, Orobiyi, A.*, Djedatin, G. L.* and Dansi, A.*, in: Genetic Resources and Crop Evolution, pages 1-15, ISSN 0925-9864, 2016. [DOI]
 
Genetic diversity of white yam (Dioscorea rotundata Poir) accessions maintained in tissue culture and cultivated in field using Simple Sequence Repeat (SSR) Markers and Morphological Characterization, Gabriel, A.*, Agre, A. P., Edemodu, A., Okon, A. E.*, Bhattacharjee, R. and De Koeyer, D ., in: Journal of Agriculture and Crops, volume 7, number 2, pages 60-68, ISSN 2413-886X, 2021. [DOI]
 
Genetic parameter estimates and selection gain for multiple traits in white Guinea yam (Dioscorea rotundata) in Ghana, Darkwa, K .*, Adjei, E. A.*, Chamba, E.*, Sayibu, A.*, Amegbor, I. K.*, Agyapong, F. A.*, Sayibu, Z.*, Sayibu, I.*, Kangmennaang, M.*, Issifu, M.*, Agre, A. P., Adebola, P. O. and Asfaw, A., in: Euphytica, volume 221, number -: 23, pages 1-16, ISSN 0014-2336, 2025. [DOI]
 
Genome analyses reveal the hybrid origin of the staple crop white Guinea yam (Dioscorea rotundata), Sugihara, Y., Darkwa, K., Yaegashi, H., Natsume, S., Shimizu, M., Abe, A., Hirabuchi, A., Ito, K., Oikawa, K., Tamiru-Oli, M., Ohta, A., Matsumoto, R., Agre, A. P., De Koeyer, D ., Pachakkil, B., Yamanaka, S., Muranaka, S., Takagi, H., White, B., Asiedu, R., Innan, H., Asfaw, A., Adebola, P. O. and Terauchi, R., in: Proceedings of the National Academy of Sciences (PNAS), volume 117, number 50, pages 31987-31992, ISSN 0027-8424, 2020. [DOI]
 
Genome-wide mapping uncovers significant quantitative trait loci associated with yam mosaic virus infection, yield and dry matter content in White Guinea yam (Dioscorea rotundata Poir.), Adjei, E. A.*, Odong, T. L.*, Esuma, W.*, Bhattacharjee, R., Agre, A. P., Adebola, P. O., Chamba, E.*, Asfaw, A., Dramadri, I.*, Mbabazi, S. T.*, Edema, R.*, Ozimati, A.*, Ochwo-Ssemakula, M.* and Alicai, T.*, in: Frontiers in Horticulture, volume 3, number -: 1365567, pages 1-13, ISSN 2813-3595, 2024. [DOI]
 
Genotyping-by-sequencing to unlock genetic diversity and population structure in white yam (dioscorea rotundata poir.), Bhattacharjee, R., Agre, A. P., Bauchet, G. J., De Koeyer, D ., Lopez-Montes, A., Kumar, P. L., Abberton, M., Adebola, P. O., Asfaw, A. and Asiedu, R., in: Agronomy, volume 10, number 9: 1437, pages 1-16, ISSN 0002-1962, 2020. [DOI]
 
GGE biplot analysis of Dioscorea rotundata cultivar tela genotypes in Ghana, Otoo, E.* and Asiedu, R., in: Journal of Food, Agriculture and Environment, volume 7, number 1, pages 134-139, ISSN 1459-0255, 2009.
 
Highly informative SNP marker panels in yam (Dioscorea rotundata) for genomic selection and prediction, Agre, A. P. and Asfaw, A., 2023. [DOI]
 
Identification and potential use of RAPD markers linked to yam mosaic virus resistance in white yam (Dioscorea rotundata Poir.), Mignouna, H., Abang, M., Onasanya, A., Agindotan, B. and Asiedu, R., in: Annals of Applied Biology, volume 140, pages 163-169, 2002.
 
Identification of quantitative trait nucleotides and candidate genes for tuber yield and mosaic virus tolerance in an elite population of white guinea yam (Dioscorea rotundata) using genome-wide association scan, Agre, A. P., Norman, P. E.*, Asiedu, R. and Asfaw, A., in: BMC Plant Biology, volume 21, number : 552, pages 1-16, ISSN 1471-2229, 2021. [DOI]
 
Identification of some Benin Republic's Guinea yam (Dioscorea cayenensis/Dioscorea rotundata complex) cultivars using Randomly Amplified Polymorphic DNA, Dansi, A., Mignouna, H., Zoundjihekpon, J., Sangare, A.*, Asiedu, R. and Ahoussou, N., in: Genetic Resources and Crop Evolution, volume 47, pages 619-625, ISSN 0925-9864, 2000.
 
Improved propagation methods to raise the productivity of yam (Dioscorea rotundata Poir.), Aighewi, B., Asiedu, R., Maroya, N. and Balogun, M., in: Food Security, volume 7, number 4, pages 823-834, ISSN 1876-4517, 2015. [DOI]
 
In vitro androgenesis in Dioscorea rotundata Poir., Azuh, V., Adesoye, A. I.*, Gueye, B., Sartie, A. M. and Asiedu, R., in: Journal of Science Research, volume 10, number 3, pages 371-378, ISSN 1117-9333, 2011.
 
In vitro regeneration of yam species crossing (Dioscorea rotundata and Dioscorea bulbifera) through ovule culture: proceeding (poster), Saini, H., Kashihara, Y., Adeleke, T., Lopez-Montes, A. and Asiedu, R., World Congress on Root and Tuber Crops (WCRTC), 2016.
 
In vitro tuberization in white yam (Dioscorea rotundata Poir), Ng, S. Y. C., in: Plant Cell, Tissue and Organ Culture, volume 14, pages 121-128, 1988.
 
Influence of carbon source on in vitro tuberization and growth of white yam (Dioscorea rotundata Poir), Ng, S. Y. C. and Mantell, S. H., pages 26, International Society for Tropical Root Crops (ISTRC), 1997.
 
Influence of carbon source on in vitro tuberization and growth of white yam (Dioscorea rotundata Poir.), Ng, S. Y. C. and Mantell, S. H., in: Tropical Agriculture (Trinidad), volume 75, number 2, pages 243-247, ISSN 0041-3216, 1998.
 
Influence of explant condition on microtuberization of yams (Dioscorea alata and D. rotundata), Kikuno, H ., Shiwachi, H ., Onjo, M. and Asiedu, R., in: Japanese Society for Tropical Agriculture, volume 48, number 2, pages 71-72, 2004.
 
Influence of time of harvest on the yield and sensory attributes of white yam (Dioscorea rotundata) in Southwest Nigeria, Akinwande, B.*, Asiedu, R., Adeyemi, I.* and Maziya-Dixon, B., in: Journal of Food, Agriculture & Environment, volume 5, number 2, pages 179-184, ISSN 1459-0255, 2007.
 
Influence of tuber harvest time and storage period on polyphenoloxidase activity and rate of browning of white yam (Dioscorea rotundata), Akinwande, B.*, Asiedu, R., Maziya-Dixon, B. and Adeyemi, I.*, in: African Journal of Root and Tuber Crops, volume 8, number 2, pages 41-45, ISSN 1118-2075, 2010.
 
Influence of tuber sett-weights on flowering in Dioscorea rotundata Poir, Chikaleke, V., Asiedu, R. and Fatokun, C., pages 304-307, International Society for Tropical Root Crops (ISTRC) - Africa Branch, 2001.
 
Inheritance of resistance to yam mosaic virus, genus Potyvirus, in white yam (Dioscorea rotundata), Mignouna, H., Njukeng, A. P.*, Abang, M. and Asiedu, R., in: Theoretical and Applied Genetics, volume 103, pages 1196-2000, 2001.
 
Interaction among cultural factors in microtuberization of white yam (Dioscorea rotundata), Balogun, M., Fawole, I., Ng, S. Y. C., Ng, N. Q., Shiwachi, H . and Kikuno, H ., in: Tropical Science, volume 46, number 1, pages 55-59, ISSN 0041-3291, 2006.
 
Interspecific crossing between yam species (Dioscorea rotundata and Dioscorea bulbifera) through in vitro ovule culture, Saini, H., Kashihara, Y., Lopez-Montes, A. and Asiedu, R., in: American Journal of Plant Sciences, volume 7, number 8, pages 1268-1274, ISSN 2158-2742, 2016. [DOI]
 
Introduction and evaluation of improved varieties of Dioscorea rotundata, and D. cayenensis with high micronutrient content in Cameroon, Njukwe, E., Amah, D., Ndango, R., Tenkouano, A. and Asiedu, R., in: Root and tuber crops for poverty alleviation through science and technology for sustainable development: proceedings of the 10th symposium of ISTRC-AB held from 8-12 October, 2007 in Maputo, Mozambique, pages 338-342, ISTRC-AB, 2010.
 
Low soil nutrient tolerance and mineral fertilizer response in White Guinea Yam (Dioscorea rotundata) genotypes, Matsumoto, R., Ishikawa, H., Asfaw, A. and Asiedu, R., in: Frontiers in Plant Science, volume 12, number -: 629762, pages 1-10, ISSN 1664-462X, 2021. [DOI]
 
Micropropagation of white yam (Dioscorea rotundata Poir.), Ng, S. Y. C., pages 135-159, Springer-Verlag, 1992.
 
Mini tuber production using yam (Dioscorea rotundata) vines, Shiwachi, H ., Kikuno, H . and Asiedu, R., in: Tropical Science, volume 45, number 4, pages 163-169, ISSN 0041-3291, 2005.
 
Mini-tuber production using yam (Dioscorea rotundata) vine, Shiwachi, H ., Acha, I. and Asiedu, R., in: Paper presented at: Proceedings of the 93th Conference of the Japanese Society for Tropical Agriculture, March, pages 29-30, Nairobi, Kenya, 2003.
 
Molecular and phenotypic profiling of white Guinea yam (Dioscorea rotundata) breeding lines, Norman, P. E., Asfaw, A., Agre, A. P., Danquah, A.*, Tongoona, P.*, Danquah, E.* and Asiedu, R., in: Frontiers in Horticulture, volume 2, number -: 1290521, pages 1-14, ISSN 2813-3595, 2023. [DOI]
 
Morphological and cultural variation among Colletotrichum gloeosporoides isolates causing different foliar symptoms of Dioscorea rotundata, Afolabi, O., Ayodele, M., Adeoti, A.* and Popoola, A., in: Proceedings of the 32 Annual conference of Nigerian Society for Plant Protection University of Portharcourt, 15-19 May, N/A, 2005.
 
Morphological and isozymic diversity of the cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of Cameroon, Mignouna, H., Dansi, A. and Zok, S., in: Genetic Resources and Crop Evolution, volume 49, pages 21-29, 2002.
 
Morphological diversity, cultivar groups and possible descent in the cultivated yams (Dioscorea cayenensis/D. rotundata) complex in Benin Republic, Dansi, A., Mignouna, H., Zoundjikekpon, J., Sangare, A.*, Asiedu, R. and Quin, F., in: Genetic Resources and Crop Evolution, volume 46, number 4, pages 371-388, ISSN 0925-9864, 1999.
 
Multiple-traits selection in White Guinea Yam (Dioscorea rotundata) genotypes, Norman, P. E., Agre, A. P., Asiedu, R. and Asfaw, A., in: Plants, volume 11, number 21: 3003, pages 1-15, ISSN 2223-7747, 2022. [DOI]
 
Non-destructive shoot biomass evaluation using a handheld NDVI sensor for field-grown staking Yam (Dioscorea rotundata Poir.), Iseki, K. and Matsumoto, R., in: Plant Production Science, pages 1-10, ISSN 1343-943X, 2018. [DOI]
 
Options for cogongrass ((Imperata cylindrica) control in white guinea yam (Dioscorea rotundata) and cassava (Manihot esculenta)1, Ellis-Jones, J., Kormawa, P., Udensi, U., Ibana, S. and Avav, T., in: Weed Technology, volume 20, pages 784-792, ISSN 0890-037X, 2006.
 
Paternity assignment in white guinea yam (Dioscorea Rotundata) half-sib Progenies from polycross mating design using SNP markers, Norman, P. E., Agre, A. P., Danquah, A.*, Tongoona, P.*, Danquah, E.*, De Koeyer, D ., Ikeogu, U. N., Asiedu, R. and Asfaw, A., in: Plants, volume 9, number 4: 527, pages 1-15, ISSN 2223-7747, 2020. [DOI]
 
Pathogenicity of the lesson nematode, Pratylenchus sudanensis (Loff and Yassin) on a yam variety (Dioscorea rotundata), Mudiope, J., Coyne, D., Adipala, E.* and Sikora, R., in: Paper presented at: Paper presented at the 6th Biennial Conference of the African Crop Science Society, 12-17 October, Nairobi, Kenya., 2003.
 
Patterns and locations of sprouts on intact tubers of a multiple sprouting Dioscorea rotundata poir. variety, Pepa, Aighewi, B. A.*, Asiedu, R. and Akoroda, M. O.*, in: African Journal of Root and Tuber Crops, volume 5, number 1, pages 18-19, 2002.
 
Phases of dormancy in yam tubers (Dioscorea rotundata Poir.), Ile, E., Craufurd, P., Battey, N. and Asiedu, R., in: Annals of Botany, volume 97, pages 497-504, 2006.
 
Phenotypic analysis of tuber yield- and maturity-related traits in white yam (Dioscorea rotundata), Sartie, A. M., Franco, J. and Asiedu, R., in: African Journal of Biotechnology, volume 11, number 17, pages 3964-3975, ISSN 1684-5315, 2012. [DOI]
 
Physicochemical and bioactive properties of selected white yam (Dioscorea rotundata) varieties adapted to riverine areas of Nigeria, Alamu, E. O., Maziya-Dixon, B., Okonkwo, C. C.* and Asiedu, R., in: African Journal of Food Science, volume 8, number 7, pages 402-409, ISSN 1996-0794, 2014. [DOI]
 
Plant regeneration from axillary bud derived callus in white yam (Dioscorea rotundata), Manoharan, R., Tripathi, J. and Tripathi, L., in: Plant Cell, Tissue and Organ Culture, volume 126, pages 481-497, ISSN 0167-6857, 2016. [DOI]
 
Ploidy level of the cultivated yams (Dioscorea cayenensis/D. rotundata complex) from Benin Republic as determined by chromosome counting and flow cytometry, Dansi, A., Pillay, M., Mignouna, H., Dainou, O., Mondeil, F. and Moutairou, K.*, in: African Crop Science Journal, volume 8, number 4, pages 355-364, ISSN 1021-9730, 2000.
 
Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set, Obidiegwu, J., Loureiro, J.*, Ene-Obong, E.*, Rodriguez, E.*, Kolesnikova-Allen, M.+, Santos, C.*, Muoneke, C. O.* and Asiedu, R., in: Euphytica, volume 169, number 3, pages 319-326, ISSN 0014-2336, 2009.
 
Ploidy variation in the cultivated yams (Dioscorea cayenensis-Dioscorea rotundata complex) from Cameroon as determined by flow cytometry, Dansi, A., Mignouna, H., Pillay, M. and Zok, S., in: Euphytica, volume 119, pages 301-307, ISSN 0014-2336, 2001.
 
Population changes of plant-parasitic nematodes associated with cover crops following a yam (Dioscorea rotundata) crop, Claudius-Cole, A. O.*, Fawole, B.* and Asiedu, R., in: Tropical Plant Pathology, pages 1-7, ISSN 1983-2052 (E-ISSN), 2015. [DOI]
 
Potential of West African white yam (Dioscorea rotundata Poir.) genotypes as sources of resitance to yam mosaic virus (genus Potyvirus; family Potyviridae), Odu, B., Asiedu, R., Hughes, J., Shoyinka, S.* and Oladiran, A., 2001.
 
Preliminary studies of seed yam production from minisetts with different thicknesses of cortex parenchyma in white yam (Dioscorea rotundata Poir.), Aighewi, B., Akoroda, M. and Asiedu, R., in: Root crops and poverty alleviation: proceedings of the Sixth Triennial Symposium of the International Society for Tropical Root Crops - Africa Branch, 22-28 October 1995, Lilongwe, Malawi, pages 445-447, 1998.
 
Producing seed yams (Dioscorea rotundata Poir.) from young sprouts, Aighewi, B., Asiedu, R. and Akoroda, M., in: African Journal of Root and Tuber Crops, volume 5, number 2, pages 13-14, 2003.
 
Producing seed yams (Dioscorea rotundata Poir.) using yam peels, Aighewi, B., Asiedu, R. and Akoroda, M., in: African Journal of Root and Tuber Crops, volume 5, number 2, pages 28-31, 2003.
 
Producing seed yams (Dioscorea rotundata) from sprouts, Aighewi, B., Akoroda, M. and Asiedu, R., in: Root crops in the 21st century: proceedings of the 7th Triennial Symposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB), Cotonou, Benin, 11-17 October 1998, pages 297-299, ISTRC-AB; Government of Benin, 2001.
 
Production and distribution of virus-free yam (Dioscorea rotundata Poir.), Ng, S. Y. C., in: Tropical root crops in a developing economy: proceedings of the 9th Symposium of the International Society for Tropical Rooy Crops, 20-26 October 1991, Accra, Ghana, pages 324-328, ISTRC; Government of Ghana; International Institute of Tropical Agriculture (IITA), 1994.
 
Production of mini-tubers from vine cuttings of white yam (Dioscorea rotundata), Oyetunji, O.*, Kabeya, M.* and Shiwachi, H ., in: Journal of Applied Horticulture, volume 9, number 2, pages 167-172, ISSN 0972-1045, 2007.
 
Rate of change in photoperiod and the intensity of timing of flowering in white yam (Dioscorea rotundata Poir.), Ile, E., Craufurd, P., Battey, N. and Asiedu, R., in: Comparative Biochemistry and Physiology A: Molecular and Integrative Physiology, volume 134, pages S161, ISSN 1095-6433, 2003.
 
Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria, Odu, B., Asiedu, R., Shoyinka, S.* and Hughes, J., in: Journal of Phytopathology, volume 154, number 11-12, pages 688-693, ISSN 0931-1785, 2006.
 
Reactions of white yam (Dioscorea rotundata Poir.) genotypes to three viruses infecting yams, Odu, B., Hughes, J., Asiedu, R., Shoyinka, S.* and Oladiran, O., in: Root crops: the small processor and development of local food industries for market economy: proceeding of the Eighth Triennial Syposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan, Nigeria, pages 516-521, 2003.
 
Reactions of white yam (Dioscorea rotundata Poir.) genotypes to three viruses infecting yams, Odu, B., Hughes, J., Asiedu, R., Shoyinka, S.* and Oladiran, O., in: Book of Abstracts of the Eighth Triennial Symposium of the International Society for Tropical Root Crops (ISTRC) - Africa Branch, 12-16 Nov, International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 2001.
 
Regeneration of Dioscorea rotundata through somatic embryogenesis, Manoharan, R., Nyaboga, E., Tripathi, J. and Tripathi, L., Abstract: In Vitro Cellular & Developmental Biology-Plant, Plant 51, S32, 233, Spring St. New York, NY 10013 USA, Springer, 2015.
 
Response of yam (Dioscorea rotundata Poir.) to various periods of weed interference in an intercropping with maize (Zea mays L.), okra (Abelmoschus esculentus L. Moench), and sweet potato (Ipomoea batatas L. Lam), Orkwor, G. C., Okereke, O. U., Ezedinma, C., Hahn, S. K., Ezumah, H. C. and Akobundu, I., in: Acta Horticulturae, volume 380, pages 349-354, ISSN 0567-7572, 1994.
 
Responses of white yam (Dioscorea rotundata) cultivars to inoculation with three viruses, Odu, B., Hughes, J., Asiedu, R., Ng, N. Q., Shoyinka, S.* and Oladiran, O., in: Plant Pathology, volume 53, number 2, pages 141-147, ISSN 0032-0862, 2004.
 
Sample preservation and plant sex prediction in white guinea yam (Dioscorea rotundata Poir.), Agre, A. P., Nwachukwu, C.*, Olasanmi, B.*, Obidiegwu, J.*, Nwachukwu, E.*, Adebola, P. O., De Koeyer, D . and Asfaw, A., in: Journal of Applied Biotechnology Reports, volume 7, number 3, pages 145-151, ISSN 2322-1186, 2020. [DOI]
 
Seed yam (Dioscorea rotundata Poir) production, storage and quality in some yam zones of Nigeria, Aighewi, B., Akoroda, M. and Asiedu, R., in: Root crops in the 21st century: proceedings of the 7th Triennial Symposium of the International Society for Tropical root Crops (ISTRC) - Africa Branch. Oct 1998. Government of Benin, pages 300-303, 2001.
 
Seed yam (Dioscorea rotundata Poir) production, storage, and quality in selected yam zones of Nigeria, Aighewi, B. A.*, Akoroda, M. O.* and Asiedu, R., in: African Journal of Root and Tuber Crops, volume 5, number 1, pages 20-23, 2002.
 
Sensory evaluation: the last hurdle in varietal development of yams (Dioscorea rotundata, poir) in Ghana, Otoo, E.* and Asiedu, R., in: African Journal of Biotechnology, volume 8, number 21, pages 5747-5754, ISSN 1684-5315, 2009.
 
Sexual propagation: a new approach to improvement of yam Dioscorea rotundata, Sadik, S. and Okereke, O. U., 1974.
 
Shoot and plantlet regeneration from meristems of Dioscorea rotundata poir and Dioscorea alata L., Adeniyi, O. J., Adetimirin, V.*, Ingelbrecht, I. and Asiedu, R., in: African Journal of Biotechnology, volume 7, number 8, pages 1003-1008, ISSN 1684-5315, 2008.
 
Simple sequence repeat markers and endogenous phytochemicals associated with somatic embryogenesis in Dioscorea alata L. and Dioscorea rotundata poir, Ossai, C. O.*, University of Ibadan, 2021.
 
Simple sequence repeat-based mini-core collection for white Guinea yam (Dioscorea rotundata) germplasm, Pachakkil, B., Yamanaka, S., Girma Tessema, G., Matsumoto, R., Tamiru-Oli, M., Bhattacharjee, R., Abberton, M., Muranaka, S., Asiedu, R., Terauchi, R. and Takagi, H., in: Crop Science, pages 1-12, ISSN 0011-183X, 2021. [DOI]
 
SSR markers reveal diversity in Guinea yam (Dioscorea cayenensis/D. rotundata) core set, Obidiegwu, J., Kolesnikova-Allen, M.+, Ene-obong, E. E.*, Muoneke, C. O.* and Asiedu, R., in: African Journal of Biotechnology, volume 8, number 12, pages 2730-2739, ISSN 1684-5315, 2009.
 
Stability studies of hybrid yam (Dioscorea rotundata Poir.) genotypes in Ghana, Otoo, E.*, Okonkwo, C. and Asiedu, R., in: Journal of Food, Agriculture and Environment, volume 4, number 1, pages 234-238, ISSN 1459-0255, 2006.
 
Standardization of waxing technique to enhance white yam (Dioscoreae rotundata poir) mini-tuber storability, Adepeju, M. A.*, University of Ibadan, 2023.
 
Storage life of eleven cultivars of white yam (Dioscorea rotundata) grown with or without NPK fertilizer and the relationship with residual soil NPK, Asadu, C.*, Egbobe, O. B.* and Asiedu, R., in: Agro-Science, volume 7, number 3, pages 235-241, ISSN 1119-7455, 2008.
 
Studies on the reproductive biology of white yam (Dioscorea rotundata Poir.), Segnou, , Fatokun, C., Akoroda, M. and Hahn, S. K., in: Euphytica, volume 64, pages 197-203, ISSN 0014-2336, 1992.
 
The influence of minisett size and time of planting on the yield of seed yam (Dioscorea Rotundata), Aighewi, B., Maroya, N., Mignouna, D., Aihebhoria, D., Balogun, M. and Asiedu, R., in: Experimental Agriculture, volume 56, number 3, pages 469-481, ISSN 0014-4797, 2020. [DOI]
 
The performance profile of Dioscorea rotundata cultivar Dorban genotypes in Ghana using GGE biplot analysis, Otoo, E.* and Asiedu, R., in: Journal of Food, Agriculture and Environment, volume 7, number 1, pages 150-155, ISSN 1459-0255, 2009.
 
The prevalence of badnaviruses in West African yams (Dioscorea cayenensis-rotundata) and evidence of endogenous pararetrovirus sequences in their genomes, Seal, S., Turaki, A., Muller, E., Kumar, P. L., Kenyon, L., Filloux, D., Galzi, S., Lopez-Montes, A. and Iskra-Caruana, M. L., in: Virus Research, volume 186, pages 144-154, ISSN 0168-1702, 2014. [DOI]
 
Using isozyme polymorphism to assess genetic variation within cultivated yams (Dioscorea cayenensis/Dioscorea rotundata complex) of the Republic of Benin, Dansi, A., Mignouna, H., Zoundjihekpon, J., Sangare, A.*, Asiedu, R. and Ahoussou, N., in: Genetic Resources and Crop Evolution, volume 47, pages 371-383, 2000.
 
Variation in tuber dry matter content and starch pasting properties of white Guinea yam (Dioscorea rotundata) genotypes grown in three groecologies of NIGERIA, Matsumoto, R., Asfaw, A., De Koeyer, D., Muranaka, S., Yoshihashi, T., Ishikawa, H., Adebola, P. O. and Asiedu, R., in: Agronomy, volume 11, number 10: 1944, pages 1-15, ISSN 2073-4395, 2021. [DOI]
 
Varietal identification key of the cultivated yams (Dioscorea cayenensis / Dioscorea rotundata complex) of Benin republic, Dansi, A., Mignouna, H., Zoundjihekpon, J., Sangare, A.* and Asiedu, R., in: Plant Genetic Resources Newsletter, volume 116, pages 18-25, 1998.
 
Viruses infecting cultivated yams (Dioscorea alata and D. rotundata) in Nigeria, Hughes, J., Dongo, L. and Atiri, G.*, in: Phytopathology, volume 87, number S-45, 1997.
 
Virus-like Particles and Cytoplasmic Inclusions Associated with Disease Dioscorea rotundata Poir from Nigeria, Mohammed, N. and Terry, E. R., 1978.
 
Virus-like particles and cytoplasmic inclusions associated with diseased Dioscorea rotundata poir from Nigeria, Mohamed, N. A. and Terry, E. R., in: Tropical Agriculture (Trinidad), volume 56, number 2, pages 175-179, ISSN 0041-3216, 1979.
 
Weed interference and control in white yam (Dioscorea rotundata Poir), Akobundu, I., in: Weed Research, volume 21, pages 267-272, ISSN 0043-1737, 1981. [DOI]
 
White Guinea yam (Dioscorea rotundata Poir.) landraces trait profiling and setting benchmark for breeding programs in the Republic of Benin, Loko, Y.*, Gbemavo, C.*, Agre, A. P., Dassou, A. G.*, Yelome, O. I.*, Idossou, R.*, Afoha, S. A. P.*, Dadonougbo, E.*, Fakorede, J.* and Dansi, A.*, in: PloS ONE, volume 17, number 8: e0273043, pages 1-22, ISSN 1932-6203, 2022. [DOI]
 
Whole genome sequencing of White guinea yam (Dioscorea rotundata): towards generating genetic and genomic tools for improvement of an African 'orphan' crop, Oli, M. T., Natsume, S., Takagi, H., Yoshida, K., Yaegashi, H., Uemura, A., Oikawa, K., Uraski, N., Matsumura, H., Babil, P., Yamanaka, S., Matsumoto, R., Muranaka, S., Girma Tessema, G., Lopez-Montes, A., Gedil, M., Bhattacharjee, R., Abberton, M., Kumar, P. L., Rabbi, I. Y., Kahl, G., Takagi, H., Asiedu, R. and Terauchi, R., Abstract, p. w899, in the book of abstracts of the Plant and Animal Genome XXIV Conference January 08 - 13, San Diego, CA, 2016.
 
Whole-genome sequencing-based analysis of diversity in Guinea yam (Dioscorea rotundata) breeding materials: a preliminary result, Tamiru, M., Natsume, S., Takagi, Hiroki, Babil, P. K., Yamanaka, S., Lopez-Montes, A., Gedil, M., Bhattacharjee, R., Girma Tessema, G., Takagi, H., Asiedu, R. and Terauchi, R., Abstract in First Global Conference on Yam 'to harness research innovations to unleash the potential of yam', 3-6 October, 2013 Accra, Ghana, 2013.
 
Yam (Dioscorea rotundata Poir. and D. alata L.) meristem culture - optimization and genetic stability study of micropropagated plants, Adeniyi, O. J., Adetimirin, V.*, Ingelbrecht, I. and Asiedu, R., in: 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch (ISTRC-AB); October 31 to November 5, 2004, Mombasa, Kenya, 2004.
 
Yam (Dioscorea rotundata Poir. and Dioscorea alata L.) meristem culture optimization and phenotypic stability of micropropagated plants, Adeniyi, O. J., Adetimirin, V.*, Ingelbrecht, I. and Asiedu, R., in: Proceedings of 9th ISTRC-AB symposium, 1 - 5 November 2004, pages 316-323, Mombasa, Kenya, 2007.
 
Yield and micronutrient uptake of white yam (Dioscorearotundata L. Poir) as influence by organomineral fertilizer ammendment on an alfisol in Ibadan South western Nigeria, Lawal, O. I.*, Adeoye, G.*, Asiedu, R., Ojeniyi, S. O.*, Atayese, M. O.* and Olaiya, A.O.*, Abstract, P. 164 in the book of abstracts and programme of the 12th Triennial Symposium of International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 30 - 5, October, Alisa Hotel, Accra, Ghana, 2013.
 
Agrobacterium-mediated genetic transformation of yam (Dioscorea rotundata): an important tool for functional study of genes and crop improvement, Nyaboga, E., Tripathi, J., Manoharan, R. and Tripathi, L., in: Frontiers in Plant Science, volume 5, number 463, pages 1-14, ISSN 1664-462X, 2014. [DOI]
 
Keywords:Dioscorea rotundata; Marker genes; Reporter genes; Agrobacterium tumefaciens; Genetic transformation

Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata), Sartie, A. M. and Asiedu, R., Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010.
 
Keywords:Dioscorea alata, Dioscorea rotundata, Hybrid identification, Molecular markers, Trait mapping, Yam

First report of cucumber mosaic virus in yams (Dioscorea spp.) in Ghana, Togo and Republic of Benin in West Africa, Eni, A., Kumar, P. L., Asiedu, R., Alabi, O., Naidu, R.*, Hughes, J. and Rey, M.*, in: Plant Disease, volume 92, number 5, pages 833, ISSN 0191-2917, 2008. [DOI]
 
Abstract:
Yam (Dioscorea spp., family Dioscoreaceae) is one of the most important food crops cultivated in the West African yam zone comprising the forest and savannah areas of Nigeria, Ghana, Cote d'Ivoire, Republic of Benin, and Togo, which account for more than 90% of the 4.59 million ha of yam cultivation worldwide (1). A survey was conducted in 2005 to document viruses in yams in Ghana, Togo, and the Republic of Benin. Samples (1,405) from five species of yam showing mosaic, chlorosis, and stunting as well as asymptomatic plants were tested for Dioscorea bacilliform virus (DBV, genus Badnavirus), Yam mosaic virus (YMV, genus Potyvirus), and Yam mild mosaic virus (YMMV, genus Potyvirus), the three most common viruses infecting yams. In addition, samples were tested for Cucumber mosaic virus (CMV), since CMV was previously reported to infect yams in Cote d'Ivoire (2) and Nigeria (3). In protein-A sandwich-ELISA with polyclonal antibodies to a cowpea isolate of CMV, 23 of the 1,405 samples (6 of 218 samples from Togo, 13 of 628 samples from Ghana, and 4 of 559 samples from Republic of Benin) tested positive for CMV. The CMV-positive samples were from D. alata (N = 16) and D. rotundata (N = 7), whereas all samples from D. cayenensis, D. dumetorum, and D. bulbifera tested negative. CMV was detected as mixed infections with DBV, YMV, or YMMV in 21 of 23 samples. Some of these samples showed puckering, chlorosis, mottling, and crinkling, whereas some plants infected by two or more viruses were asymptomatic. Only two samples from D. rotundata had a single infection of CMV and they showed mild chlorotic symptoms in young leaves that were inconspicuous in mature leaves. In sap inoculations, the virus induced systemic mosaic in Nicotiana glutinosa. The presence of CMV in ELISA-positive yam samples was further confirmed by immunocapture-reverse transcription (IC-RT)-PCR using CMV antibodies as trapping antibody and oligonucleotide primers specific for a 485 nt corresponding to 3' end of the coat protein gene and C-terminal noncoding region of RNA-3 (4). To confirm the specificity of ICRT-PCR, the 485-bp amplicons from an isolate from the Republic of Benin was cloned into pCR2.1 (Invitrogen, Carlsbad, CA) and three independent clones were sequenced from both orientations. Pairwise comparison of a consensus sequence (Accession No. EU274471) with corresponding sequences of other CMV isolates deposited in GenBank showed 99% identity at the nucleotide sequence level (Accession No. U22821) and revealed that the CMV isolate from yam belongs to sub-Group IA. To our knowledge, this is the first report of CMV infection in yams (D. alata and D. rotundata) in Ghana, Togo, and the Republic of Benin. Together with a previous documentation of CMV in D. alata and D. trifida in Cote d'Ivoire and Nigeria (2,3), this report adds to existing knowledge on distribution of CMV in yams with implications for yam production and germplasm distribution in the West Africa Region.