Genetic Structure and Genetic Differentiation of 10 Domestic Chinese Geese Populations

The experiment adopted the information frommicrosatellites to estmate the genetic structure,genetic differentiation and gene flow of 10 geese breeds on the national animal and poultry protection list.The results showed that the inbreeding coefficient of ten populations(Fit) was 0.044,the inbreeding coefficient(Fis) within the populations was-0.408,and the gene coefficient of differentiation among the populations(Fst) was 0.257,and of the three fixed index only Fst achieved significant difference(P0.01).The inbreeding coefficient within the populations was minus.In the populations,the gene flow of Huoyan goose and Yili goose was the smallest(Nm=0.416),while the biggest in Sichuan white goose and Yili goose(Nm=1.430).Combined the gene flow with STRUCTURE analysis,it said that the ten populations could be divided into four genetic clusters,which accorded with the breeding history and geographic distribution.