Abstract：
The objective of this study was to assess the genetic diversity, phylogenetic relationship and population structure of five goat breeds in Shanxi, China. High genetic diversities were found in the five populations, among which, Licheng big green goat (LCBG) has the highest genetic diversity, while Jinlan cashmere goat (JLCG) population has the lowest genetic diversity. Bottleneck analysis showed the absence of recent genetic bottlenecks in the five goat populations. Genetic differentiation analysis shows that the closest genetic relationship between LCBG and LLBG (Lvliang black goat) was found, and the genetic distance between JLCG and the other four populations is the largest. The population structure of JLCG is different from the other four populations with K = 2, while LCBG and LLBG have high similarity population structure as the K value changes. Knowledge about genetic diversity and population structure of indigenous goats is essential for genetic improvement, understanding of environmental adaptation as well as utilization and conservation of goat breeds.
摘要：
这项研究的目的是评估遗传多样性，山西5个山羊品种的系统发育关系及种群结构,中国。在五个种群中发现了高度的遗传多样性，其中,历城年夜青山羊(LCBG)具有最高的遗传多样性，而金兰绒山羊(JLCG)群体的遗传多样性最低。瓶颈分析表明，五个山羊种群中没有最近的遗传瓶颈。遗传分化分析表明,LCBG与LLBG(吕梁黑山羊)的亲缘关系最为密切,JLCG与其他四个种群的遗传距离最大。JLCG的种群结构与K=2的其他四个种群不同，而LCBG和LLBG随着K值的变化具有很高的相似种群结构。了解本地山羊的遗传多样性和种群结构对于遗传改良至关重要。了解环境适应以及山羊品种的利用和保护。
