类复合体（双翅目：摇蚊科）的新线粒体基因组：特征及系统发育意义

New Mitogenomes of the Generic Complex (Diptera: Chironomidae): Characterization and Phylogenetic Implications.

作者信息

Zhang Dan, He Fei-Xiang, Li Xue-Bo, Aishan Zhulidezi, Lin Xiao-Long

机构信息

Characteristic Laboratory of Forensic Science in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan 250014, China.

Dongting Lake Eco-Environmental Monitoring Center of Hunan Province, Yueyang 414000, China.

出版信息

Insects. 2023 Feb 27;14(3):238. doi: 10.3390/insects14030238.

Mitochondrial genomics, as a useful marker for phylogenetics and systematics of organisms, are important for molecular biology studies. The phylogenetic relationships of the generic complex remains controversial, due to lack taxonomy and molecular information. In this study, we newly sequenced mitogenomes of 14 species of the generic complex. Coupled with three recently published sequences, we analyzed the nucleotide composition, sequence length, and evolutionary rate of this generic complex. The control region showed the highest AT content. The evolution rate of protein coding genes was as follows: > > > > > > > > > > > > . We reconstructed the phylogenetic relationships among the genera within the generic complex based on 19 mitochondrial genomes (seventeen ingroups and two outgroups), using Bayesian Inference (BI) and Maximum Likelihood (ML) methods for all databases. Phylogenetic analysis of 19 mitochondrial genomes demonstrated that the + was sister to + .

线粒体基因组学作为生物系统发育和分类学的有用标记，对分子生物学研究很重要。由于缺乏分类学和分子信息，该属复合体的系统发育关系仍存在争议。在本研究中，我们新测序了该属复合体14个物种的线粒体基因组。结合最近发表的三个序列，我们分析了该属复合体的核苷酸组成、序列长度和进化速率。控制区的AT含量最高。蛋白质编码基因的进化速率如下：> > > > > > > > > > > > > 。我们基于19个线粒体基因组（17个内群和2个外群），使用贝叶斯推断（BI）和最大似然（ML）方法，重建了该属复合体内各属之间的系统发育关系。对19个线粒体基因组的系统发育分析表明，+ 是 + 的姐妹群。