Genetic analysis of local Vietnamese chickens for conservation purposes

Archive ouverte

Berthouly, Cécile | Nhu Van, T. | Hoang Thanh, H. | Bed'Hom, Bertrand, B. | Vu Chi Cuong, - | Verrier, Etienne | Maillard, J.C. | Rognon, Xavier, X

Edité par CCSD -

International audience. The Vietnamese H’Mong chicken breed called the Black Chicken because of the black bones, skin and shank, had a strong cultural value. In order to characterise the H’mong chicken from the originating province, namely Ha-Giang, phenotypic and genetic analyses were performed. Thirty communes from the 11 districts of the province were surveyed. A total of 2487 animals were described for 29 phenotypic characters and analysed by Principal Component Analysis (PCA). The two principal components explained 53.6 % of the inertia. All variables describing black colour grouped together and allowed differentiation of three communes among the thirty. From the described animals set, 1082 animals were genotyped using 18 ISAG microsatellite markers. In the Ha-Giang population, HEXP averaged 0.619 and FIS averaged 0.121 and 3.7 % of the genetic diversity w as due to differentiation between communes. Bayesian approach did not showed genetic subdivision into subpopulations. In summary, analysis of phenotypes revealed a geographic distribution of Black chickens while the bayesian admixture analysis within the province did not showed genetic differentiation of the Black chicken within the province. Therefore, a reproductive pool of chicken considering only the black phenotype could be used if government wants to create a genetically distinct H’mong breed.

• Description
• Sujet/Public
• Outil
• Outil d'anticipation
• Mémoire et thèse
• Gestion