Genetic variation and phylogenetic relationship between three serow species of the genus Capricornis based on the complete mitochondrial DNA control region sequences

被引:15
|
作者
Liu, Wei [1 ,2 ]
Yao, Yong-fang [1 ,2 ]
Yu, Qin [1 ]
Ni, Qing-yong [1 ]
Zhang, Ming-wang [1 ,2 ]
Yang, Jian-dong [1 ,2 ]
Mai, Miao-miao [1 ]
Xu, Huai-liang [1 ,2 ]
机构
[1] Sichuan Agr Univ, Coll Anim Sci & Technol, Yaan 625014, Peoples R China
[2] Sichuan Agr Univ, Coll Forestry, Yaan 625014, Peoples R China
基金
中国国家自然科学基金;
关键词
Genetic variation; Phylogenetic relationship; Mitochondrial DNA; Serow; D-LOOP REGION; JAPANESE SEROW; COMPREHENSIVE ANALYSIS; HETEROPLASMY; ELONGATION; EVOLUTION; SOFTWARE; CHINESE; GENOME;
D O I
10.1007/s11033-013-2796-8
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The molecular evidence of phylogenetic status regarding the Formosan serow (Capricornis swinhoei) is not robust and little is known about the genetic diversity of the Sumatran serow (Capricornis sumatraensis), which partly is due to the hardness in sample collection. Here we determined the sequences of the complete mitochondrial DNA control region (1,014 bp) of 19 Sumatran-serow individuals. Nine new haplotypes were defined based on 78 variable sites. Combined analysis with other 32 haplotypes downloaded from the public database, including 1 Sumatran-serow, 11 Formosan-serow and 20 Japanese-serow (Capricornis crispus) haplotypes, a relatively high level of nucleotide diversity was first observed in Sumatran serow (pi = 0.0249). By comparative analysis with structural consensus sequences from other mammals, we have identified central, left and right domains and depicted the putative functional structure, including extend termination associated sequences and conserve sequence blocks, in mtDNA control region. The alignment of mtDNA control region revealed that both Sumatran and Japanese serow have two tandem repeats (TRs), but three TRs in Formosan serow. Phylogenetic analyses revealed that the Formosan serow is distinct species with the Japanese serow, but a sister group with the Sumatran serow. The divergence time estimated among three serow species revealed that Pleistocene climate changes and the uplift of Qinghai-Tibetan plateau might play an important role in the genetic differentiation of the serows. These results mainly provide the convinced evidence on the genetic relationship between three serow species.
引用
收藏
页码:6793 / 6802
页数:10
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