Identifying the confounding factors in resolving phylogenetic relationships in Vespertilionidae
Identifying the confounding factors in resolving phylogenetic relationships in Vespertilionidae
复制标题
DOI：
10.1644/09-mamm-a-354.1
复制
发表时间：
2010-12-16
影响因子：
1.7
通讯作者：
Van Den Bussche, Ronald A.
中科院分区：
文献类型：
--
作者：
Lack, Justin B.;Van Den Bussche, Ronald A.
解决蝙蝠科内部的系统发育关系一直很困难，大数据集（>100个分类群，>7个分支）解决了部分的系统发育，但留下了蝙蝠亚科内部的部落间关系尚未解决。因此，大多数种类繁多的翼手目家族的进化历史在很大程度上是未知的。短节间的存在，其次是长的终端分支相对于其他翼手目arterogenies表明，DNA取代和谱系多样化的进化速度可能会抑制系统发育分辨率。为了验证这一假设，我们获得了线粒体DNA（mtDNA）12 s rRNA、tRNA（瓦尔）和16 s rRNA以及核外显子RAG 2的序列，从而获得了蝙蝠科和叶口科（一个与蝙蝠科大约同时辐射的蝙蝠科）所有亚科和部落的代表的超过3个双基因组DNA序列数据。分析表明，Vespertilionidae的替代率显着高于Phyllostomidae，大多数快速进化的谱系内Vespertilioninae发现。分支发生分析的特点是vespertilionid辐射压缩向根，快速初始多样化，但phyllostomid多样化是渐进的。我们认为，热带和温带环境之间的生态差异可能会影响Vespertilionidae和Phyllostomidae的多样化率。DOI：10.1644/09-MAMM-A-354.1。
Resolving phylogenetic relationships within Vespertilionidae has been difficult, with large data sets (>100 taxa, >7 kilobases) resolving portions of the phylogeny but leaving intertribal relationships within the Vespertilioninae unresolved. As a result the evolutionary history of the most speciose chiropteran family is largely unknown. The presence of short internodes followed by long terminal branches relative to other chiropteran phylogenies suggests that evolutionary rates of DNA substitution and lineage diversification could be inhibiting phylogenetic resolution. To test this hypothesis we obtained sequences of the mitochondria] DNA (mtDNA) 12s rRNA, tRNA(VAL), and 16s rRNA, and the nuclear exon RAG2, resulting in more than 3 kilobases of digenomic DNA sequence data for representatives of all subfamilies and tribes within Vespertilionidae and Phyllostomidae, a family of bats that radiated at approximately the same time as Vespertilionidae. Analyses revealed that substitution rates for Vespertilionidae were significantly higher than those for Phyllostomidae, with the majority of fast-evolving lineages found within Vespertilioninae. Cladogenesis analyses characterized the vespertilionid radiation as compressed toward the root, with a rapid initial diversification, but the phyllostomid diversification was much more gradual. We suggest that ecological differences between tropical and temperate environments could have influenced diversification rates for Vespertilionidae and Phyllostomidae. DOI: 10.1644/09-MAMM-A-354.1.