Phenotypic Characterization of Dioscorea burkilliana J. Miège (Dioscoreaceae) Genetic Resources

Main Article Content

I. T. Gbadamosi
M. Abberton
A. C. Igwe
F. Soyode
O. J. Olawuyi


Aims: This study investigated morphological characterization of eighty accessions of Dioscorea burkilliana obtained from the Genetic Resources Center of International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria. 

Study Design and Methods: The experimental field was laid out in a complete randomized design with three replicates on plots of 10 meters length spaced at one meter between rows and one meter within rows (10 m x 1 m x 1 m).

Results: The evaluation of nine qualitative and six quantitative traits revealed phenotypic variations in D. burkilliana accessions using IPGRI’s descriptors. The mature stem colour of spot at spine base (MSCSSB) had the highest mean of 61.73 cm, while young stem with absence or presence of scale leaves (YSA/PSL) had least value of 0.37 cm. The principal component analysis (PCA) produced the highest eigenvector of 3.122 for Prin 1 with highest proportion of 20.81%, while Prin 15 had the least (0.11%). Also, in Prin 1, the mature leaf petiole at base (MLP A), mature leaf petiole at middle ( MLP B) and mature leaf petiole at top (MLP C) were closely related compared to matured leaf measurement  MLM-Breadth A, MLM-Breadth B and MSA-PCS. There was positive and strong relationship between mature leaf petiole at base (MLP-A) with mature leaf petiole at middle (MLP-B) (r = 0.84, p< 0.005) and mature leaf petiole at top (MLP-C) (r = 0.75). The dendrogram was delineated into seven cluster groups in which cluster V had 18 accessions which was the highest, while cluster VI had the least with one accession (DbB 222).

Conclusion: The strong positive associations among MLP-A, MLP-B and MLP-C as well as MSS SAB and MSA/PCS suggested the consideration of these traits for future breedings. Accessions DbB 83, DbB 140 and DbB 254 could be recommended as parent material for the improvement of Discorea burkilliana.

Dioscorea burkilliana, accessions, morphological character, phenotypic variation, dendrogram.

Article Details

How to Cite
Gbadamosi, I. T., Abberton, M., Igwe, A. C., Soyode, F., & Olawuyi, O. J. (2020). Phenotypic Characterization of Dioscorea burkilliana J. Miège (Dioscoreaceae) Genetic Resources. Journal of Applied Life Sciences International, 23(1), 41-57.
Original Research Article


Nilofer Sheikh, Yogendra Kumar, Misra AK, Lokho Pfoze. Phytochemical screening to validate the ethnobotanical importance of root tubers of Dioscorea species of Meghalaya, North East India. Journal of Medicinal Plants Studies. 2013;16:62-69.

Gondwe WT, Ambali AJD, Chitekwere SF, Luhanga R, Msowoya W. Yam (Dioscorea species) germplasm evaluation for yield and quality. Department of Agricultural research services. In-House Scientific Conference. September 1-2, 2003, Chitedze Agricultural Research Station, Lilongwe; 2003.

Akubue PI. Nigerian medicinal plants: Pharmacology and toxicology. In “The state of medicinal plants research in Nigeria”. Sofowora, A. (Ed.) University of Ibadan Press, Nigeria. 1986;53-63.

Gill LS. Ethnomedical uses of plants in Nigeria. Uniben Press, Benin City; 1992.

Noamesi SK. Storability of Dioscorea rotundata Poir. Department of Nutrition and Food Science, University of Ghana, Legon. PhD Thesis; 2008.

Chair H, Perrier X, Agbangla C, Marchand JL, Dainou O, Noyer JL. Use of cpSSRs for the characterization of yam phylogeny in Benin. Genome. 2005;48(4):674–684.

Hladik A, Bahuchet S, Ducatillion C, Hladik CM. Les plantes de la foret dense D’Afrique centrale. Rev. Ecol (Terre vie). 1984;39:249-290.

Tortoe C, Johnson PT, Abbey L, Baidoo E, Anang D, Acquaah SG, Saka E. Sensory properties of pre-treated blast-chilled (Dioscorea rotundata) as a convenience food product. Africa Journal Food Science Technology. 2012;3:59-65.

Bhattacharjee R, Melaku G, Alieu S, Emmanuel O, Dominique D, Hidehiko K, Lava Kumar P, Robert A. Wild crop relatives: Genomic and breeding resources. 2011;71-96.

Zamir D. Where have all the crop phenotypes gone? PLoS Bio. 2013;111: e1001595.

Olawuyi OJ, Fawole I. Studies on genetic variability of some quantitative and qualitative characters in Pigeon pea-Cajanus cajan (L) Millsp. (Fabaceae). Acta SATECH. 2005;2(1):30-36.

Adewale DB. Genetic diversity, stability and reproductive biology of African Yam Bean. University of Ibadan Ph.D., Thesis. 2011;17-19.

Olawuyi OJ, Bello OB, Ntube CV, Akanmu AO. Progress from selection of some maize cultivars’ response to drought in the derived Savanna of Nigeria AGRIVITA Journal of Agricultural Science. 2015; 37(1):8-17.

IPGR/IITA. Descriptors of yam (Dioscorea spp.). International Institute of Tropical Agriculture, Ibadan, Nigeria / International plant Genetic Resources Institute, Rome, Italy; 1997.

Gomez KA, Gomez AA. Statically procedure for agricultural research. John Wiley and Sons., New York. 1984;523-540.

Girma G, Korie S, Dumet D, Franco J. Improvement of accession distinctiveness as an added value to the global worth of the yam (Dioscorea spp.) gene bank. International Journal of Conservation Science. 2012;199-206.

Olawuyi OJ, Bamigbegbin BJ, Bello OB. Genetic variation of morphological and yield characters of Celosia argentea L. Germplasm Journal of Basic and Applied Research International. 2016;13(3):160-169.

Haq NM, Saad IM, Mozamil H, Sajjad RC, Habib IJ. Genetic correlation among variation quantitative characters in maize (Zea mays L.) hybrids. Journal of Agriculture and Social Sciences. 2005; 3(1):262-265.

Bello D, Sajo AA, Chubado D, Jellason JJ. Variability and correlation studies in okra (Abelmoschus esculentus L. Moench). Journal Sustainable Dev Agricultural. Environ. 2006;2:120-126.

Morris JB. Sword bean (Canavalia ensiformis (L.) DC.) genetic resources regenerated for potential medicinal nutaceutical and agricultural traits. Genetic Resources and Crop Evolution. 2007;54: 585-592.

Olowe OM, Odebode AC, Olawuyi OJ, Akanmu AO. Correlation, principal component analysis and tolerance of maize genotypes to drought and diseases in relation to growth traits. American-Eurasian J. Agric & Environ, Sci. 2013; 13(11):1554-1561.

Ganesh MK, Dorairaj MS. Genetic diversity in pigeon pea Cajanus cajan L. Madras Agricultural Journal. 1990;50:276-282.

Abberton MT, Marshall AH. White Clove. In Crops and Amenity Grasses; Boller B, Posselt UK, Ulrich K, Veronesi F, Eds., Springer: Berlin, Germany. 2010;457-476.