Wang Yan-Hui, Wu Hao-Yang, Rédei Dávid, Xie Qiang, Chen Yan, Chen Ping-Ping, Dong Zhuo-Er, Dang Kai, Damgaard Jakob, Štys Pavel, Wu Yan-Zhuo, Luo Jiu-Yang, Sun Xiao-Ya, Hartung Viktor, Kuechler Stefan M, Liu Yang, Liu Hua-Xi, Bu Wen-Jun
Department of Ecology and Evolution, College of Life Sciences, Sun Yat-sen University, 135 Xingangxi Road, Guangzhou, 510275, Guangdong, China.
State Key Laboratory of Biocontrol, Sun Yat-sen University, 135 Xingangxi Road, Guangzhou, 510275, Guangdong, China.
Cladistics. 2019 Feb;35(1):42-66. doi: 10.1111/cla.12232. Epub 2017 Dec 19.
The phylogeny of true bugs (Hemiptera: Heteroptera), one of the most diverse insect groups in terms of morphology and ecology, has been the focus of attention for decades with respect to several deep nodes between the suborders of Hemiptera and the infraorders of Heteroptera. Here, we assembled a phylogenomic data set of 53 taxa and 3102 orthologous genes to investigate the phylogeny of Hemiptera-Heteroptera, and both concatenation and coalescent methods were used. A binode-control approach for data filtering was introduced to reduce the incongruence between different genes, which can improve the performance of phylogenetic reconstruction. Both hypotheses (Coleorrhyncha + Heteroptera) and (Coleorrhyncha + Auchenorrhyncha) received support from various analyses, in which the former is more consistent with the morphological evidence. Based on a divergence time estimation performed on genes with a strong phylogenetic signal, the origin of true bugs was dated to 290-268 Ma in the Permian, the time in Earth's history with the highest concentration of atmospheric oxygen. During this time interval, at least 1007 apomorphic amino acids were retained in the common ancestor of the extant true bugs. These molecular apomorphies are located in 553 orthologous genes, which suggests the common ancestor of the extant true bugs may have experienced large-scale evolution at the genome level.
在形态学和生态学方面，半翅目昆虫是最多样化的昆虫类群之一，几十年来，半翅目亚目和异翅亚目下目之间的几个深层次节点一直是关注的焦点。在这里，我们组装了一个包含53个分类单元和3102个直系同源基因的系统发育基因组数据集，以研究半翅目-异翅亚目的系统发育，并使用了串联法和合并法。引入了一种双节点控制的数据过滤方法，以减少不同基因之间的不一致性，这可以提高系统发育重建的性能。两种假说（鞘喙亚目+异翅亚目）和（鞘喙亚目+同翅亚目）都得到了各种分析的支持，其中前者与形态学证据更为一致。基于对具有强烈系统发育信号的基因进行的分歧时间估计，真蝽的起源可追溯到二叠纪的2.90-2.68亿年前，这是地球历史上大气氧气浓度最高的时期。在这个时间间隔内，现存真蝽的共同祖先中至少保留了1007个衍生氨基酸。这些分子衍生特征位于553个直系同源基因中，这表明现存真蝽的共同祖先可能在基因组水平上经历了大规模进化。
