• • 上一篇    下一篇

麝、獐、麂和鹿间线粒体DNA的差异及其系统进化研究

李明,盛和林,玉手英利,增田隆一,永田纯子,大泰司纪之   

  1. 华东师范大学生物系,上海
  • 出版日期:2006-07-25 发布日期:2008-07-07

MtDNA DIFFERENCE AND MOLECULAR PHYLOGENY AMONG MUSK DEER, CHINESE WATER DEER, MUNTJAK AND DEER

LI Ming, SHENG Hilin, Tamate H, Masuda R, Nagata J, Ohtaishi N   

  • Online:2006-07-25 Published:2008-07-07

摘要: 用PCR技术和序列测定方法从线粒体DNA上得到367bp 的细菌色素b基因片段序列。分析得出,麝与獐、麂和鹿的遗传差异在12.53%-14.44%之间, 处在科间变化范围之内, 在分子水平上进一步表明麝应作为一独立科; 獐、麂和鹿间序列的平均差异为10.28%, 属于亚科间的差异, 与形态研究结果一致。麝与獐、麂和鹿的系统进化中,麝约在600万年前与鹿科分歧,而鹿科的三个亚科是在350-500万年开始分歧;麝与獐、麂和鹿共同组成一单系群,在600万年前具有一共同祖先。

关键词: 林麝, 獐, 黄麂, 水鹿, 线粒体DNA, 系统进化

Abstract: The study was on molecular phylogeny of musk deer, Chinese water deer, muntjak and deer comparing partial sequences of the mitochondrial cytochrome b gene among them. 367 bp of the mitochondrial cytochrome b gene of forest musk deer (Moschus berezovskii), Chinese water deer (hydropotes inermis), muntjak(Muntiacus reevesi)and deer (Cervus unicolor) were sequenced by PCR and phylogenetic trees were contracted using neighbor-joining method and maximum parsimony method. Sequence divergence of cytochrome b was within level of interfamily, 12.53%-14.17% between musk deer and deer(family Cervidae), so it further clearified that musk deer was independent family, but sequence divergence was level of inter-subfamily(average10.55%)among water deer, muntjak and deer. Musk deer diverged from family cervidae before about 6 Myr; divergence time were about 3.5-5.0 Myr among three subfamily of family Cervidae. They contracted a monopgyletic group and share a common ancestor before 6 Myr.

Key words: Forest musk deer(Moschus berezovskii), Chinese water deer (hydropotes inermis), muntjak(Muntiacus reevesi), Sambar (Cervus unicolor), Mitochondrial DNA(mtDNA), Phylogeny