World Journal of
Pharmaceutical and Life Sciences

GENETIC DIVERSITY OF DJELLI ZEBU OF NIGER USING MICROSATELLITE DNA MARKERS

Zakari Idde Yahaya*, Guiguigbaza-Kossigan Dayo, Mani Maman, Maurice Konkombo, Souleymane Sylla, Moumouni ISSA and Hamani Marichatou

ABSTRACT

The present study was carried out to evaluate the genetic diversity in of the Djelli zebu of Niger sampled in three departments (Kollo, Say, Tera) of the Tillaberi region and in the peri-urban area of Niamey. A total of 20 microsatellite markers were used to genotype 114 animals. The results showed a high variability in the subpopulations studies. The number of alleles ranged from 5 (BM1824 and HAUT27) to 12 alleles (MM12) and while the allelic richness calculated using the rarefaction correction varied from 0.427 (SPS115) to 0.802 (HEL9). The highest genetic diversity was observed in the department of Kollo and the lowest in the subpopulation of Niamey. The highest genetic distance values were observed between the Say and Niamey subpopulations while the lowest were between Kollo and Tera. The Bayesian clustering method showed that the most consistent gain in information was obtained with K = 2 and from K = 3 to K = 6, some individuals displayed less than 1% of their genome in other clusters.

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