贵州白山羊与湖南马头山羊mtDNA Cytb基因系列比较及系统进化研究Comparison and Systematic Evolution Study of Cytochrome b Gene(Cytb) between Guizhou White Goat and Hunan Matou Goat
黄勤华;刘若余;邓书堪;
摘要(Abstract):
[目的]为了从核酸序列水平上分析2个山羊线粒体DNA Cytb基因的遗传多样性及系统发生地位。[方法]对贵州白山羊及马头山羊2个山羊品种,共计27个个体mtDNA Cytb基因片段进行测序分析和比较。[结果]26条山羊的Cytb基因序列均为1 140 bp的同源基因序列;总共发现12个变异位点,观察到10种单倍型;2个山羊品种中单倍型多样性为0.635%~0.889%,核苷酸多样度为0.189%~0.253%。[结论]2个山羊品种线粒体DNA遗传多态性为中等;贵州白山羊与湖南马头山羊同起源于胃石山羊。
关键词(KeyWords): 山羊;线粒体DNA;细胞色素b;遗传多样性.
基金项目(Foundation): 贵州大学博士启动项目(X060051)
作者(Author): 黄勤华;刘若余;邓书堪;
Email:
DOI: 10.13989/j.cnki.0517-6611.2009.25.156
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