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新疆野猪mtDNA控制区序列遗传多样性分析
引用本文:韩春梅,高庆华,赵书红,龚慧婷,赵余.新疆野猪mtDNA控制区序列遗传多样性分析[J].安徽农业科学,2008,36(8):3142-3144.
作者姓名:韩春梅  高庆华  赵书红  龚慧婷  赵余
作者单位:新疆兵团畜牧科技重点实验室,新疆,阿拉尔,843300;农业部猪遗传育种重点开放实验室,湖北,武汉,430070;新疆兵团畜牧科技重点实验室,新疆,阿拉尔,843300;农业部猪遗传育种重点开放实验室,湖北,武汉,430070
基金项目:新疆兵团重点实验室项目(编号HS200406).
摘    要:目的]为研究猪种起源和遗传分化提供依据。方法]从6个新疆野猪样本中提取基因组DNA,克隆线粒体DNA控制区序列并进行测序。在测定新疆野猪与其他20个国内外猪种间的遗传距离的基础上,对其进行聚类分析。结果]通过PCR扩增克隆到大小为1398bp的DNA片段,其A+T含量为59.87%,有明显的碱基偏向性。控制区内存在大量的ACACGTGCGT串联重复序列。在6个新疆野猪样本中检测到3个单倍型。群体平均单倍型多样度(H)为0.600,核苷酸多样度(π)为0.00086。聚类分析结果表明新疆野猪与滇南小耳猪、泰国野猪和藏猪具有较近的遗传关系。结论]新疆野猪与亚洲野猪和中国地方猪种有较近的遗传关系。

关 键 词:新疆野猪  mtDNA控制区序列  遗传多样性
文章编号:0517-6611(2008)08-03142-02
修稿时间:2008年2月18日

Genetic Diversity Analysis of mtDNA Control Region Sequence in Xinjiang Wild Pig
HAN Chun-mei.Genetic Diversity Analysis of mtDNA Control Region Sequence in Xinjiang Wild Pig[J].Journal of Anhui Agricultural Sciences,2008,36(8):3142-3144.
Authors:HAN Chun-mei
Abstract:Objective] The research aimed to provide basis for studying the origin and the genetic differentiation of pig species. Method] Genomic DNA was extracted from 6 samples of Xinjiang wild pig. The mitochondrial DNA control region sequence was cloned and sequenced. Based on determining the genetic distances between Xinjiang wild pig and other 20 pig species at home and abroad, the clustering analysis was made on them. Result] DNA fragment with the size of 1398 bp was cloned by PCR amplification, with A T content of 59.87%, and it had an obvious base bias. There were a lot of ACACGTGCGT tandem repeat sequences in control region. 3 haplotypes were detected in 6 samples of Xinjiang wild pig. The average haplotype diversity (H) and the nucleotide diversity of the population were 0.600 and 0.00086 resp. The results of clustering analysis showed that Xinjiang wild pig had closer relationships with Diannan small-ear pig, Thailand wild pig and Tibetan pig. Conclusion] Xinjiang wild pig had closer relationships with Asian wild pig and Chinese local pig species.
Keywords:Xinjiang wild pig  mtDNA control region sequence  Genetic diversity
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