Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences
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 gro...
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ftchinacascnwipb:oai:210.75.249.4:363003/25460 2023-05-15T15:44:16+02:00 Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences Yu, N Zheng, CL Zhang, YP Li, WH 2000-07-01 http://ir.nwipb.ac.cn/handle/363003/1433 http://210.75.249.4/handle/363003/15268 http://210.75.249.4/handle/363003/20364 http://210.75.249.4/handle/363003/25460 unknown MOLECULAR PHYLOGENETICS AND EVOLUTION Yu N,Zheng CL,Zhang YP,Li WH.Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences.MOLECULAR PHYLOGENETICS AND EVOLUTION,2000,16(1):85-95 http://ir.nwipb.ac.cn/handle/363003/1433 http://210.75.249.4/handle/363003/15268 http://210.75.249.4/handle/363003/20364 http://210.75.249.4/handle/363003/25460 期刊论文 2000 ftchinacascnwipb 2023-03-26T20:29:40Z 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 ... Report Bering Strait Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences) Bering Strait |
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Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences) |
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ftchinacascnwipb |
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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 ... |
format |
Report |
author |
Yu, N Zheng, CL Zhang, YP Li, WH |
spellingShingle |
Yu, N Zheng, CL Zhang, YP Li, WH Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences |
author_facet |
Yu, N Zheng, CL Zhang, YP Li, WH |
author_sort |
Yu, N |
title |
Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences |
title_short |
Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences |
title_full |
Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences |
title_fullStr |
Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences |
title_full_unstemmed |
Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences |
title_sort |
molecular systematics of pikas (genus ochotona) inferred from mitochondrial dna sequences |
publishDate |
2000 |
url |
http://ir.nwipb.ac.cn/handle/363003/1433 http://210.75.249.4/handle/363003/15268 http://210.75.249.4/handle/363003/20364 http://210.75.249.4/handle/363003/25460 |
geographic |
Bering Strait |
geographic_facet |
Bering Strait |
genre |
Bering Strait |
genre_facet |
Bering Strait |
op_relation |
MOLECULAR PHYLOGENETICS AND EVOLUTION Yu N,Zheng CL,Zhang YP,Li WH.Molecular systematics of pikas (genus Ochotona) inferred from mitochondrial DNA sequences.MOLECULAR PHYLOGENETICS AND EVOLUTION,2000,16(1):85-95 http://ir.nwipb.ac.cn/handle/363003/1433 http://210.75.249.4/handle/363003/15268 http://210.75.249.4/handle/363003/20364 http://210.75.249.4/handle/363003/25460 |
_version_ |
1766378567336198144 |