NWIPB OpenIR
Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences
Yu, N; Zheng, CL; Zhang, YP; Li, WH
2000-07-01
发表期刊MOLECULAR PHYLOGENETICS AND EVOLUTION
卷号16期号:1页码:85-95
文章类型Article
摘要The phylogenetic relationships among worldwide species of genus Ochotona were investigated by sequencing mitochondrial cytochrome b and ND4 genes. Parsimony and neighbor-joining analyses of the sequence data yielded congruent results that strongly indicated three major clusters: the shrub-steppe group, the northern group, and the mountain group. The subgeneric classification of Ochotona species needs to be revised because each of the two subgenera in the present classification contains species from the mountain group. To solve this taxonomic problem so that each taxon is monophyletic, i.e., represents a natural clade, Ochotona could be divided into three subgenera, one for the shrub-steppe species, a second for the northern species, and a third for the mountain species. The inferred tree suggests that the differentiation of this genus in the Palearctic Region was closely related to the gradual uplifting of the Tibet (Qinghai-Xizang) Plateau, as hypothesized previously, and that vicariance might have played a major role in the differentiation of this genus on the Plateau, On the other hand, the North American species, O. princeps, is most likely a dispersal event, which might have happened during the Pliocene through the opening of the Bering Strait. The phylogenetic relationships within the shrub-steppe group are worth noting in that instead of a monophyletic shrub-dwelling group, shrub dwellers and steppe dwellers are intermingled with each other. Moreover, the sequence divergence within the sister tars of one steppe? dweller and one shrub dweller is very low. These findings support the hypothesis that pikes have entered the steppe environment several times and that morphological similarities within steppe dwellers were due to convergent evolution. (C) 2000 Academic Press.; The phylogenetic relationships among worldwide species of genus Ochotona were investigated by sequencing mitochondrial cytochrome b and ND4 genes. Parsimony and neighbor-joining analyses of the sequence data yielded congruent results that strongly indicated three major clusters: the shrub-steppe group, the northern group, and the mountain group. The subgeneric classification of Ochotona species needs to be revised because each of the two subgenera in the present classification contains species from the mountain group. To solve this taxonomic problem so that each taxon is monophyletic, i.e., represents a natural clade, Ochotona could be divided into three subgenera, one for the shrub-steppe species, a second for the northern species, and a third for the mountain species. The inferred tree suggests that the differentiation of this genus in the Palearctic Region was closely related to the gradual uplifting of the Tibet (Qinghai-Xizang) Plateau, as hypothesized previously, and that vicariance might have played a major role in the differentiation of this genus on the Plateau, On the other hand, the North American species, O. princeps, is most likely a dispersal event, which might have happened during the Pliocene through the opening of the Bering Strait. The phylogenetic relationships within the shrub-steppe group are worth noting in that instead of a monophyletic shrub-dwelling group, shrub dwellers and steppe dwellers are intermingled with each other. Moreover, the sequence divergence within the sister tars of one steppe? dweller and one shrub dweller is very low. These findings support the hypothesis that pikes have entered the steppe environment several times and that morphological similarities within steppe dwellers were due to convergent evolution. (C) 2000 Academic Press.
关键词Phylogenetic-relationships
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科领域生物化学
关键词[WOS]PHYLOGENETIC-RELATIONSHIPS
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS类目Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS记录号WOS:000088148400008
引用统计
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1433
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Kunming Inst Zool, Key Lab Cellular & Mol Evolut, Kunming 650223, Peoples R China
2.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Peoples R China
3.Univ Chicago, Dept Ecol & Evolut, Chicago, IL 60637 USA
推荐引用方式
GB/T 7714
Yu, N,Zheng, CL,Zhang, YP,et al. Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2000,16(1):85-95.
APA Yu, N,Zheng, CL,Zhang, YP,&Li, WH.(2000).Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences.MOLECULAR PHYLOGENETICS AND EVOLUTION,16(1),85-95.
MLA Yu, N,et al."Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences".MOLECULAR PHYLOGENETICS AND EVOLUTION 16.1(2000):85-95.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Molecular systematic(100KB) 开放获取使用许可浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Yu, N]的文章
[Zheng, CL]的文章
[Zhang, YP]的文章
百度学术
百度学术中相似的文章
[Yu, N]的文章
[Zheng, CL]的文章
[Zhang, YP]的文章
必应学术
必应学术中相似的文章
[Yu, N]的文章
[Zheng, CL]的文章
[Zhang, YP]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences .pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。