Phylogenetics of small horseshoe bats from east Asia based on mitochondrial DNA sequence variation
Phylogenetics of small horseshoe bats from east Asia based on mitochondrial DNA sequence variation
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DOI：
10.1644/05-mamm-a-395r2.1
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发表时间：
2006-12-01
影响因子：
1.7
通讯作者：
Zhang, Shuyi
中科院分区：
文献类型：
--
作者：
Li, Gang;Jones, Gareth;Zhang, Shuyi
我们进行了线粒体DNA基因序列分析和回声定位的呼吁，以解决相关的蝙蝠分类群Rhinolophus pusillus（中国各地采样），R。monoceros（Taiwan）、单角草R. cornutus（日本主要岛屿）和R. C. pumilus（冲绳，日本）。将新的线粒体细胞色素b基因全序列和部分线粒体控制区序列与已发表的序列相结合，构建了系统发育树，并进行了遗传分化分析。结果表明，这4个类群在系统发育树上形成了单系类群。然而，低水平的分类群之间的序列差异，加上相似的身体大小和重叠的回声定位呼叫频率，指向缺乏分类学的独特性。因此，我们建议，这些分类群更好地考虑作为地理亚种，而不是不同的物种，虽然这不应该减少这些岛屿人口，这是重要的进化显著单位的保护的重要性。根据我们的研究结果，我们认为，在身体大小和回声定位呼叫频率的相似性，在这些蛇的结果，从最近的共同祖先，而相似的身体大小和呼叫频率与R。欧洲的河马是趋同进化的结果。
We undertook analyses of mitochondrial DNA gene sequences and echolocation calls to resolve phylogenetic relationships among the related bat taxa Rhinolophus pusillus (sampled across China), R. monoceros (Taiwan), R. cornutus (main islands of Japan), and R. c. pumilus (Okinawa, Japan). Phylogenetic trees and genetic divergence analyses were constructed by combining new complete mitochondrial cytochrome-b gene sequences and partial mitochondrial control region sequences with published sequences. Our work showed that these 4 taxa formed monophyletic groups in the phylogenetic tree. However, low levels of sequence divergence among the taxa, together with similarities in body size and overlapping echolocation call frequencies, point to a lack of taxonomic distinctiveness. We therefore suggest that these taxa are better considered as geographical subspecies rather than distinct species, although this should not diminish the conservation importance of these island populations, which are important evolutionarily significant units. Based on our findings, we suggest that the similarities in body size and echolocation call frequency in these rhinolophids result from their recent common ancestry, whereas similarities in body size and call frequency with R. hipposideros of Europe are the result of convergent evolution.