Comparative analysis of mitochondrial genomes of the superfamily Grylloidea (Insecta, Orthoptera) reveals phylogenetic distribution of gene rearrangements

文献类型： 外文期刊

第一作者： Ma, Chuan

作者： Ma, Chuan;Li, Jianke

作者机构：

关键词： Start codon; cox1; Gene rearrangement

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）

ISSN： 0141-8130

年卷期： 2018 年 120 卷

页码：

收录情况： SCI

摘要： To further characterize mitochondrial genome (mitogenome) features of the superfamily Grylloidea (Insecta, Orthoptera), mitogenomes of Cacoplistes rogenhoferi and Meloimorpha japonica representing the family Mogoplistidae and three Ornebius species of Phalangopsidae were sequenced. A repeat-containing control region (CR) and 37 genes were present in these mitogenomes. Unusual start codons (TCG, CCG, and CTG) of cox1 and, in Ornebius, a partial stop codon (T) of nad1 followed by a 15-17-bp intergenic spacer were proposed based on transcript information and sequence alignments. The mitogenome-based phylogenetic trees suggest strongly the familial relationships as (((Phalangopsidae + Gryllidae) + Trigonidiidae) + Mogoplistidae). The exclusive occurrence of the trnE-trnS1-trnN rearrangement in Phalangopsidae, Gryllidae, and Trigonidiidae is suggestive of its appearance in the common ancestor of these families after the separation of Mogoplistidae. The trnV transposition in O. bimaculatus and formerly sequenced Trigonidium sjostedti (Trigonidiidae) indicates a potential consequence of parallel evolution. This study offers novel insights into mitogenome evolution, especially gene rearrangements, of Grylloidea. (C) 2018 Published by Elsevier B.V.

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