Assessment of genetic diversity among cultivated Pearl millet (Pennisetum glaucum, Poaceae) accessions from Benin, West Africa | Zendy

ADEOTI Kifouli | Zendy; Djèdatin Gustave | Zendy; Ewedje Eben-Ezer | Zendy; BEULE Thierry | Zendy; Santoni Sylvain | Zendy; Alain Rival | Zendy; JALIGOT Estelle | Zendy

Open Access

Assessment of genetic diversity among cultivated Pearl millet (Pennisetum glaucum, Poaceae) accessions from Benin, West Africa

Author(s) -

ADEOTI Kifouli,

Djèdatin Gustave,

Ewedje Eben-Ezer,

BEULE Thierry,

Santoni Sylvain,

Alain Rival,

JALIGOT Estelle

Publication year - 2017

Publication title -

african journal of biotechnology

Language(s) - English

Resource type - Journals

ISSN - 1684-5315

DOI - 10.5897/ajb2017.15898

Subject(s) - pennisetum , genetic diversity , analysis of molecular variance , biology , dendrogram , genetic variation , pearl , diversity index , population , botany , microsatellite , locus (genetics) , allele , veterinary medicine , gene flow , geography , genetics , ecology , species richness , medicine , demography , archaeology , sociology , gene

UMR AGAP : équipe GE2popSimple 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 agro-ecological 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

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