Genetic diversity and conservation of Asian native livestock based on development of international standard SNP sysytem

本研究旨在建立亚洲牛、猪、鸡和山羊的SNP体系，并对其遗传多样性进行评估。我们建立了由牛121个SNPs、猪101个SNPs、鸡76个SNPs和山羊58个SNP组成的SNP体系。利用这些SNP系统，我们揭示了品种和种群的遗传分化，以及品种/种群之间的遗传混合程度。为了保护亚洲地方家畜的遗传多样性，应利用遗传标记获得的遗传指数，如本研究建立的SNP体系，保持亚洲地方家畜的地域性和稀缺性谱系、品种和种群。

The aim of this study was to develop SNP system and estimate genetic diversity of Asian cattle, pig, chicken and goat. We developed the SNP system consisting of 121 SNPs in cattle, 101 SNPs in pig, 76 SNPs in chicken and 58 SNPs in goat. Using these SNP systems, we revealed genetic divergence of the breeds and populations, and degree of genetic admixture among breeds/populations. In order to conserve the genetic diversity of Asian native livestock, regional and scarcity lineage, breed and population should be maintained by using genetic indices obtained from genetic markers, such as SNP system developed in this study.