Species Delimitation and Phylogenetic Relationships in Ectobiid Cockroaches (Dictyoptera, Blattodea) from China.
Species Delimitation and Phylogenetic Relationships in Ectobiid Cockroaches (Dictyoptera, Blattodea) from China.
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中国外生蟑螂（网翅目、蜚蠊总科）的物种界定和系统发育关系
DOI：
10.1371/journal.pone.0169006
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发表时间：
2017
期刊：
影响因子：
3.7
通讯作者：
Wang Z
中科院分区：
文献类型：
--
作者：
Che Y;Gui S;Lo N;Ritchie A;Wang Z
在长江流域南部44个地点采集了蜚蠊科昆虫标本。我们获得了297个COI序列标本，并进行了系统发育和分歧断代分析，以及物种界定分析，使用一般混合尤尔聚结（GMYC）框架。外甲科蟑螂种内和种间序列差异分别为0.0 ~ 7.0%和4.6 ~ 30.8%。GMYC分析得到53个（置信区间：37-65）实体（似然比= 103.63），包括14个下载的物种。COI GMYC群部分对应于外寄生虫种，结合GMYC结果和形态学信息，成功界定了52种外寄生虫种。我们使用的分子数据和6蟑螂化石校准，以获得一个初步估计的时间尺度的外生类进化。该组中的主要亚科在~125-110 Ma之间发生了分歧，形态种对在~10 Ma或更长时间内发生了分歧。
We collected Ectobiidae cockroach specimens from 44 locations in the south of the Yangtze valley. We obtained 297 COI sequences specimens and carried out phylogenetic and divergence dating analyses, as well as species delimitation analysis using a General Mixed Yule Coalescent (GMYC) framework. The intraspecific and interspecific sequence divergence in Ectobiidae cockroaches ranged from 0.0 to 7.0% and 4.6 to 30.8%, respectively. GMYC analysis resulted in 53 (confidence interval: 37–65) entities (likelihood ratio = 103.63) including 14 downloaded species. The COI GMYC groups partly corresponded to the ectobiid species and 52 ectobiid species were delimited successfully based on the combination of GMYC result with morphological information. We used the molecular data and 6 cockroach fossil calibrations to obtain a preliminary estimate of the timescale of ectobiid evolution. The major subfamilies in the group were found to have diverged between ~125–110 Ma, and morphospecies pairs were found to have diverged ~10 or more Ma.
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