| Titre |
Assessment of genetic diversity among cultivated Pearl millet (Pennisetum glaucum, Poaceae) accessions from Benin, West Africa. |
| Auteurs |
ADEOTI ADEOLA ZOURI-KIFOULI [1],
DJEDATIN LAMBERT GUSTAVE [2],
EWEDJE EBEN-EZER BABA KAYODE [3],
BEULE Beule [4],
SANTONI Sylvain [5],
|
| Journal: |
African Journal of Biotechnology |
| Catégorie Journal: |
Africaine |
| Impact factor: |
0.573 |
| Volume Journal: |
16 |
| DOI: |
DOI: 10.5897/AJB |
| Resume |
Simple sequence repeat (SSR) molecular markers were used for genetic diversity analysis and
population structure of the cultivated Pearl millet in Benin, West Africa. In order to assess the level of
genetic diversity, 14 polymorphic SSR markers were used to screen 114 accessions from different agroecological
zones in Benin. SSR markers were found to reveal a total of 57 alleles with an average of
4.071 allele per locus. Genetic diversity index varied from 0.099 to 0.633 with an average of 0.405. The
average observed heterozygosity was found to reach 0.425. The analysis of molecular variance showed
no real differentiation between regions. Only 5% of genetic variation was observed between samples
collected from north-eastern and north-western region. A high level of variation (95%) was observed
among accessions. Moreover, both principal component analysis (PCA) and the dendrogram obtained
from the genetic distance among accessions revealed the absence of any specific structuration of
accessions from each region under study. Our results confirmed diversity among cultivated Pearl millet
in Benin and such diversity is not clustering according to geographical patterns. |
| Mots clés |
Cereal, simple sequence repeat (SSR) markers, genetic variability |
| Pages |
782 - 790 |
| Fichier |
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