Gene diversity, agroecological structure and introgression patterns among village chicken populations across North, West and Central Africa.

BMC Genetics
Grégoire LeroyXavier Rognon

Abstract

Chickens represent an important animal genetic resource for improving farmers' income in Africa. The present study provides a comparative analysis of the genetic diversity of village chickens across a subset of African countries. Four hundred seventy-two chickens were sampled in 23 administrative provinces across Cameroon, Benin, Ghana, Côte d'Ivoire, and Morocco. Geographical coordinates were recorded to analyze the relationships between geographic distribution and genetic diversity. Molecular characterization was performed with a set of 22 microsatellite markers. Five commercial lines, broilers and layers, were also genotyped to investigate potential gene flow. A genetic diversity analysis was conducted both within and between populations. High heterozygosity levels, ranging from 0.51 to 0.67, were reported for all local populations, corresponding to the values usually found in scavenging populations worldwide. Allelic richness varied from 2.04 for a commercial line to 4.84 for one population from Côte d'Ivoire. Evidence of gene flow between commercial and local populations was observed in Morocco and in Cameroon, which could be related to long-term improvement programs with the distribution of crossbred chicks. The impact of...Continue Reading

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Citations

Mar 5, 2014·Tropical Animal Health and Production·Badar Al-QamashouiSteffen Weigend
Jan 1, 2013·The African Archaeological Review·J M MwacharoO Hanotte
Oct 28, 2015·Animal : an International Journal of Animal Bioscience·G LeroyI Hoffmann
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Jun 9, 2018·Asian-Australasian Journal of Animal Sciences·Moataz FathiOsama Abou-Emera
Jan 25, 2017·The Journal of Poultry Science·Tatsuhiko Goto, Masaoki Tsudzuki

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Methods Mentioned

BETA
genotyping

Software Mentioned

FreeNA
GENETIX
POPULATION
Neighbour
PHYLIP
Neighbor
STRUCTURE
Net
GENEPOP
CLUMPP

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