| 犬科的线粒体细胞色素b DNA序列及其分子系统学研究 |
| |
| 引用本文： | 陈永久,张亚平,邹希明. 犬科的线粒体细胞色素b DNA序列及其分子系统学研究[J]. 遗传学报, 2000, 27(1): 7-11 |
| |
| 作者姓名： | 陈永久 张亚平 邹希明 |
| |
| 作者单位： | 中国科学昆明动物研究所细胞与分子进化开放研究实验室,昆明 |
| |
| 基金项目： | 国家自然科学基金，云南省科委“二百人计划”资助 |
| |
| 摘 要： | 通过对犬科的赤狐、蓝狐、貉和狼４种的线粒体细胞色素ｂ约３７２ｂｐＤＮＡ片段序列分析，结合ＧｅｎＢａｎｋ中狗、西门豺和非洲野犬３种的该区段ＤＮＡ序列的比较，共发现１１３个核苷酸位点存在变异（约３０％）。ＮＪ法构建的分子系统树显示，非洲野犬最先从犬科动物中分化出来；犬属的我狼、狗和西门豺等３种为系统树上独立的一支，且其分歧的时间较赤狐、蓝狐和貉早；赤狐和蓝狐具有较近的亲缘关系。上述结果与形态的观点基本
|
| 关 键 词： | 犬科 线粒体DNA 细胞色素b 分子系统学 |
Molecular Phylogeny of Canidae Using Mitochondrial Cytochrome b DNA Sequences |
| |
| Chen Yong-Jiu,Zhang Ya-Ping,Zuo Xi-Ming. Molecular Phylogeny of Canidae Using Mitochondrial Cytochrome b DNA Sequences[J]. Journal of Genetics and Genomics, 2000, 27(1): 7-11 |
| |
| Authors: | Chen Yong-Jiu Zhang Ya-Ping Zuo Xi-Ming |
| |
| Abstract: | 372hp mitochondrial cytochrome b DNA of blue fox, red fox, raccoon dog, and wolf were sequenced. Combined with the DNA fragments of dog, simien fox, and African wild dog, sequences were aligned and analyzed. There are 113 nucleotide sites substituted (30%).Molecular phylogenetic tree constructed by NJ method suggests that African wild dog is the earliest divergent. Wolf, dog, and simien fox which belong to genus Canis are combined into one branch which diverged earlier than raccoon dog, red fox and blue fox. Red fox is more related to blue fox than the other animals. The above result is in consistent with that of morphology. |
| |
| Keywords: | Canidae mitochondrial DNA cytochrome b molecular phylogeny |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
