文献类型： 外文期刊

作者： Liu, Jian-Bin ¹ ; Wang, Fan ² ; Lang, Xia ¹ ; Zha, Xi ³ ; Sun, Xiao-Ping ¹ ; Yue, Yao-Jing ¹ ; Feng, Rui-Lin ¹ ; Yang, Bo ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Lanzhou Inst Husb & Pharmaceut Sci, Lanzhou 730050, Peoples R China

2.Chinese Acad Agr Sci, China Agr Veterinarian Biol Sci & Technol Co Ltd, Lanzhou Vet Res Inst, Lanzhou 730046, Peoples R China

3.Tibet Acad Agr & Anim Sci, Inst Livestock Res, Lhasa 850009, Peoples R China

关键词： Cashmere Goat;Geographic Distance;Pairwise Distance;Genetic Diversity

期刊名称：ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES （ 影响因子：2.509； 五年影响因子：2.604 ）

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收录情况： SCI

摘要： This study investigated the geographic and pairwise distances of nine Chinese local Cashmere goat populations through the analysis of 20 microsatellite DNA markers. Fluorescence PCR was used to identify the markers, which were selected based on theirsignificance as identified by the Food and Agriculture Organization of the United Nations (FAO) and the International Society for Animal Genetics (ISAG). In total, 206 alleles were detected; the average allele number was 10.30; the polymorphism information content of loci ranged from 0.5213 to 0.7582; the number of effective alleles ranged from 4.0484 to 4.6178; the observed hetero2ygosity was from 0.5023 to 0.5602 for the practical sample; the expected heterozygosity ranged from 0.5783 to 0.6464; and Allelic richness ranged from 4.7551 to 8.0693. These results indicated that Chinese Cashmere goat populations exhibited rich genetic diversity. Further, the Wright's F-statistics of subpopulation within total (FST) was 0.1184; the genetic differentiationcoefficient (GST) was 0.0940; and the average gene flow (Nm) was 2.0415. All pairwise FST values among the populations were highly significant (p<0.01 or p<0.001), suggesting that the populations studied should all be considered to be separate breeds. Finally, the clustering analysis divided the Chinese Cashmere goat populations into at least four clusters, with the Hexi and Yashan goat populations alone in one cluster. These results have provided useful, practical, and important information for the future of Chinese Cashmere goat breeding.