The phylogeny of Chinese indigenous pig breeds inferred from microsatellite markers
The phylogeny of Chinese indigenous pig breeds inferred from microsatellite markers
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DOI：
10.1111/j.1365-2052.2004.01234.x
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发表时间：
2005-02-01
期刊：
影响因子：
2.4
通讯作者：
Li, N
中科院分区：
文献类型：
--
作者：
Fang, M;Hu, X;Li, N
利用34个微卫星位点对32个中国地方猪种、3个国外猪种[杜洛克（DU）、长白猪和约克郡]以及2种野猪（海南野猪和东北野猪）进行了遗传研究，以阐明中国地方猪种的遗传规律。计算等位基因频率、有效等位基因数和群体内平均杂合度。结果表明，临高猪的遗传变异最大，嘉兴猪的遗传变异最小。家猪间距离最大的是上高猪和杜猪，最短的是五指山猪和临高猪。一个邻居连接树构建的修改Cavalli-Sforza遗传距离分为两个集群，中国猪也确定了四个亚群。本研究结果与传统的分类类型仅部分一致，并提供了中国地方猪种间的新关系。我们的数据还证实，中国猪种与欧洲/美国猪种有不同的起源，可以用于旨在保持中国本土猪种的计划。
A genetic study of 32 local Chinese, three foreign pig breeds [Duroc (DU), Landrace and Yorkshire], and two types of wild boar (Hainan and Dongbei wild boar) based on 34 microsatellite loci was carried out to clarify the phylogeny of Chinese indigenous pig breeds. The allele frequencies, effective numbers of alleles, and the average heterozygosity within populations were calculated. The results showed that the genetic variability of the Lingao pig was the largest, while the Jiaxing pig was the lowest. The greatest distance between domestic pigs was found between Shanggao and DU pig and the shortest was found between Wuzhishan and Lingao pig, respectively. A neighbour-joining tree constructed from Modified Cavalli-Sforza genetic distances divided Chinese pigs into two clusters; four subclusters were also identified. Our results only partly agree with the traditional types of classification and also provide a new relationship among Chinese local pig breeds. Our data also confirmed that Chinese pig breeds have a different origin from European/American breeds and can be utilized in programmes that aim to maintain Chinese indigenous pig breeds.