Assessment of population structure and genetic diversity study of landraces and elite rice varieties commonly grown in Nigeria
Domaine:
agricultureCréateur:
DepA. M. Dep
Éditeur:
Int
Hôte:
A set of 21 rice genotypes including both elite varieties and landraces were characterised based on their population structure using genomic simple sequence repeat (gSSR) markers. A model-based method was used to delineate clusters of individuals based on their genotypes at multiple loci using a Bayesian approach. The population structure analysis separated the 21 genotypes into 3 sub-populations and the grouping were consistent with the ancestral heritage of most of the genotypes whose pedigree is known. Whereas, further clustering analysis based on unweighted pair group method with arithmetic mean (UPGMA), separated the 21 genotypes into 5 clusters. The reason for the disparity in the number clusters may be because of the different grouping methods. The knowledge obtained from both population structure and genetic diversity of the selected rice genotypes is an important contribution to future development of rice varieties for deferent agro-ecological zones in Nigeria.
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