The highly rearranged mitochondrial genomes of three economically important scale insects and the mitochondrial phylogeny of Coccoidea (Hemiptera: Sternorrhyncha)
文献类型： 外文期刊
作者： Liu, Hong-Ling 1 ; Chen, Qing-Dong 1 ; Chen, Song 1 ; Pu, De-Qiang 1 ; Chen, Zhi-Teng 2 ; Liu, Yue-Yue 3 ; Liu, Xu 1 ;
作者机构： 1.Minist Agr, Inst Plant Protect, Key Lab Integrated Pest Management Southwest Crop, Sichuan Acad Agr Sci, Chengdu, Peoples R China
2.Jiangsu Univ Sci & Technol, Sch Grain Sci & Technol, Zhenjiang, Jiangsu, Peoples R China
3.Sichuan Acad Agr Sci, Anal & Testing Ctr, Chengdu, Peoples R China
关键词： Hemiptera; Sternorrhyncha; Coccoidea; Mitogenome; Phylogeny
期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）
ISSN： 2167-8359
年卷期： 2020 年 8 卷
页码：
收录情况： SCI
摘要： The mitochondrial genomes (mitogenomes) of scale insects are less known in comparison to other insects, which hinders the phylogenetic and evolutionary studies of Coccoidea and higher taxa. Herein, the complete mitogenomes of Unaspis yanonensis, Planococcus citri and Ceroplastes rubens were sequenced for Coccoidea. The 15,220-bp long mitogenome of U. yanonensis contained the typical set of 37 genes including 13 PCGs, 22 tRNA genes and two rRNA genes; the 15,549-bp long mitogenome of P. citri lacked the tRNA gene trnV; the 15,387-bp long mitogenome of C. rubens exhibited several shortened PCGs and lacked five tRNA genes. The mitochondrial gene arrangement of the three mitogenomes was different from other scale insects and Drosophila yakuba. Most PCGs used standard ATN (ATA, ATT, ATC and ATG) start codons and complete TAN (TAA or TAG) termination codons. The ND4L had the highest evolutionary rate but COX1 and CYTB were the lowest. Most tRNA genes had cloverleaf secondary structures, whereas the reduction of dihydrouridine (DHU) arms and T psi C arms were detected. Tandem repeats, stem-loop (SL) structures and poly-[TA]n stretch were found in the control regions (CRs) of the three mitogenomes. The phylogenetic analyses using Bayesian inference (BI) and maximum likelihood methods (ML) showed identical results, both supporting the inner relationship of Coccoidea as Coccidae C (Pseudococcidae + Diaspididae).
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