| 基于线粒体12S和16S rRNA基因部分序列的角蟾亚科部分属种的系统发育关系 |
| |
| 引用本文： | 江建平,袁富蓉,谢锋,郑中华.基于线粒体12S和16S rRNA基因部分序列的角蟾亚科部分属种的系统发育关系[J].动物学研究,2003,24(4):241-248. |
| |
| 作者姓名： | 江建平 袁富蓉 谢锋 郑中华 |
| |
| 作者单位： | 1. 中国科学院成都生物研究所,四川,成都,610041
2. 美国德克萨斯大学医学中心生理学系,圣安东尼奥,78229-3900 |
| |
| 基金项目： | 国家自然科学基金资助项目 ( 3 0 0 0 0 0 18)，中国科学院生物科学与技术特别支持费资助项目 (STZ -0 1-19)，四川省科技
厅重点项目，香港野生动物保护基金会有限公司 (WCF)项目 |
| |
| 摘 要： | 测定了角蟾亚科2属8种(亚种)和外群3种的线粒体12S和16S rRNA基因部分DNA序列，比对后序列长共949bp，其中变异位点数320，简约位点数206。邻接法和最大简约法分析的系统关系树一致表明内群为一单系群，其中腺角蟾首先与其他物种分开；沙坪角蟾与宽头短腿蟾聚为一支；余下的5种(亚种)角蟾组成一支，其中小角蟾短肢亚种的广西种群和香港种群聚为一亚支，另一亚支包括峨眉角蟾、小角蟾指名亚种、尾凸角蟾和重庆武隆的角蟾种，后两种角蟾进化关系最近。本结果支持短肢角蟾为有效种，同时提示腺角蟾、沙坪角蟾与宽头短腿蟾可能隶属3个不同的亚属或属。
|
| 关 键 词： | 角蟾亚科 角蟾属 短腿蟾属 无耳蟾属 rRNA基因 无尾类 |
| 文章编号： | 0254-5853(2003)04-0241-08 |
Phylogenetic Relationships of Some Species and Genera in Megophryids Inferred from Partial Sequences of Mitochondrial 12S and 16S rRNA Genes |
| |
| JIANG Jian ping ,YUAN Fu rong ,XIE Feng ,ZHENG Zhong hua.Phylogenetic Relationships of Some Species and Genera in Megophryids Inferred from Partial Sequences of Mitochondrial 12S and 16S rRNA Genes[J].Zoological Research,2003,24(4):241-248. |
| |
| Authors: | JIANG Jian ping YUAN Fu rong XIE Feng ZHENG Zhong hua |
| |
| Affiliation: | JIANG Jian ping 1,3,YUAN Fu rong 2,XIE Feng 1,ZHENG Zhong hua 1 |
| |
| Abstract: | Fragments of mitochondrial 12 S and 16 S rRNA genes of 17 individuals were sequenced,including 8 species (subspecies) of 2 genera Megophrys and Brachytarsophrys of Megophrinae,and 3 species used as outgroup including the genera Bombia , Oreolalax and Scutiger .Results pairwised by Clustal W show that there are 949?bp in length with 320 variable sites including 206 parsimony sites.The average contents of T,C,A,and G are 25 6%,24 0%,29 8%,and 20 6%,respectively,and the ratio of transition to transvertion is 1 3.The phylogenetic relationships of these taxa were analyzed using programs of Neighbor Joining and Maximum Parsimony.The results show that the ingroup are clustered together as one clade,of which 3 individuals of M glandulosa were clustered together (BSP=100%) and firstly diverged from the other taxa (BSP=100%),3 individuals of B carinensis were clustered together (BSP=100%) as sister group of M shapingensis ,the rest 5 taxa formed together and included two groups,one consisting of two populations of M minor brachykolos from Longsheng of Guangxi and Hong Kong,the other containing M omeimontis,M minor minor,M caudoprocta and M sp from Wulong of Chongqing,the later two species are closely related.These results support M brachykolos as a valid species rather than a subspecies of M minor ,and suggest that M glandulosa,M shapingensis and B carinensis may belong to three different subgenera or genera. |
| |
| Keywords: | Megophryinae Megophrys Brachytarsophrys Atympanophrys 12 S rRNA gene 16 S rRNA gene Phylogenetic relationship |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《动物学研究》浏览原始摘要信息 |
|
点击此处可从《动物学研究》下载全文 |
|
