Reconstructing the phylogeny of Blattodea: robust support for interfamilial relationships and major clades.
Reconstructing the phylogeny of Blattodea: robust support for interfamilial relationships and major clades.
复制标题
重建蜚蠊总科的系统发育：对科间关系和主要分支的有力支持
DOI：
10.1038/s41598-017-04243-1
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发表时间：
2017-06-20
影响因子：
4.6
通讯作者：
Lo N
中科院分区：
文献类型：
--
作者：
Wang Z;Shi Y;Qiu Z;Che Y;Lo N
蟑螂是所有昆虫中最容易辨认的。除了作为害虫的作用外，它们还作为分解者发挥着关键的生态作用。尽管近几十年来有许多关于蟑螂生殖的研究，但大多数主要谱系之间的关系尚未得到解决。在这里，我们研究蟑螂之间的系统发育关系的基础上5个基因（线粒体12 S rRNA，16 S rRNA，COII;核28 S rRNA和组蛋白H3），并推断分歧时间的基础上，8个化石。在我们的分析中，我们包括来自中国的52个新种，代表7个科。这些数据与最近一项研究的数据相结合，该研究检查了来自49个物种的相同基因，导致分析的分类群显着增加。其中蜚蠊总科（Blattoidea）包括蜚蠊科（Blattidae）、啮小蠊科（Tryonicidae）、姬小蠊科（Lamproblattidae）、拟蜚蠊科（Anaplectidae）、隐角蜚蠊科（Cryptoceratinae）和等翅目（Isoptera）。Mantodea和Blattodea之间的分裂年龄估计为204.3 Ma至289.1 Ma。据估计，Corydioidea与其余Blattodea的分歧为209.7 Ma（180.5-244.3 Ma 95%置信区间[CI]）。Blattoidea分支在198.3 Ma（173.1-229.1 Ma）左右从其姐妹群Blaberoidea分化。在这项研究中增加额外的分类群，导致了显着更高水平的支持一些以前公认的分组。
Cockroaches are among the most recognizable of all insects. In addition to their role as pests, they play a key ecological role as decomposers. Despite numerous studies of cockroach phylogeny in recent decades, relationships among most major lineages are yet to be resolved. Here we examine phylogenetic relationships among cockroaches based on five genes (mitochondrial 12S rRNA, 16S rRNA, COII; nuclear 28S rRNA and histone H3), and infer divergence times on the basis of 8 fossils. We included in our analyses sequences from 52 new species collected in China, representing 7 families. These were combined with data from a recent study that examined these same genes from 49 species, resulting in a significant increase in taxa analysed. Three major lineages, Corydioidea, Blaberoidea, and Blattoidea were recovered, the latter comprising Blattidae, Tryonicidae, Lamproblattidae, Anaplectidae, Cryptocercidae and Isoptera. The estimated age of the split between Mantodea and Blattodea ranged from 204.3 Ma to 289.1 Ma. Corydioidea was estimated to have diverged 209.7 Ma (180.5–244.3 Ma 95% confidence interval [CI]) from the remaining Blattodea. The clade Blattoidea diverged from their sister group, Blaberoidea, around 198.3 Ma (173.1–229.1 Ma). The addition of the extra taxa in this study has resulted in significantly higher levels of support for a number of previously recognized groupings.