| 板角山羊mtDNA Cyt b基因变异特点及系统进化研究 |
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| 引用本文： | 邓书湛,刘若余,吴芸. 板角山羊mtDNA Cyt b基因变异特点及系统进化研究[J]. 四川动物, 2009, 28(5) |
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| 作者姓名： | 邓书湛 刘若余 吴芸 |
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| 作者单位： | 贵州大学,贵阳,550025;贵州铜仁职业技术学院;贵州大学,贵阳,550025 |
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| 基金项目： | 贵州大学博士启动项目 |
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| 摘 要： | 测定了板角山羊品种13个个体的细胞色素b基因全序列(1140 bp),比较分析了群体中细胞色素b基因的碱基组成和序列间碱基的变异情况,结果显示:在该品种(群体)中细胞色素b基因序列中6个变异位点上观察到11次T-C间和2次A-G间的碱基转换,除了有2次T-C间碱基转换发生在密码子第2位点为非同义突变以外,其余的11次碱基转换发生在密码子第3位点,均为同义突变;有1次T-G间碱基颠换发生在密码子第2位点,为非同义突变;观察到5种单倍型,单倍型多样度为0.8077.并以绵羊为外群,与山羊属其他种的同源区序列构建系统发生树.结果显示, 在系统地位上板角山羊与胃石山羊有较近的亲缘关系.
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| 关 键 词： | 山羊 线粒体细胞色素b基因(Cyt b) 系统进化 |
Variation Characteristics of the Mitocondrial Cytochrome b Gene (Cyt b) and the Phylogeny of the Banjiao Goat |
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| DEN Shu-zhan,LIU Ruo-yu,WU Yun. Variation Characteristics of the Mitocondrial Cytochrome b Gene (Cyt b) and the Phylogeny of the Banjiao Goat[J]. Sichuan Journal of Zoology, 2009, 28(5) |
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| Authors: | DEN Shu-zhan LIU Ruo-yu WU Yun |
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| Affiliation: | 1. College of Animal Science;Guizhou University;Guiyang 550025;China;2. Tongren Vocational Technology Institute |
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| Abstract: | Complete mitocondrial cytochrome b gene sequences from 13 Banjiao goats were analyzed. The results are as follows:In the varieties(groups) ,there were 6 variable points in the cytochrome b gene sequence,11 T-C and 2 A-G base conversions were found,but 2 T-C base conversions took place at the second codon point,which were non-synonymous mutations. The remaining 11 base conversions took place at the third codon point,which were synonymous mutations. One T-G base transversion occurred at the second codon point... |
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| Keywords: | goats mitochondrial cytochrome b phylogeny |
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