Author:
Lu Congcong,Huang Xiaolei,Deng Jun
Abstract
Abstract
Background
Soft scales (Hemiptera: Coccidae), including important agricultural and forestry pests, are difficult to identify directly by morphological characters. Mitochondrial genomes (mitogenomes) have been widely used in species identification and phylogenetic research. However, only three complete mitogenomes, and very few mitochondrial genes of scale insects (Hemiptera: Coccoidea) can be searched in GenBank. Mitogenome comparisons between scale insects or between scale insects and other hemipteran species have not yet been reported.
Results
In this study, detailed annotation of three new mitogenomes and comparative analysis of scale insects were completed, as well as comparative analysis of the gene composition, gene arrangement, codon usage and evolutionary forces between scale insects and 488 other hemipteran species for the first time. We found that high A + T content, gene rearrangement and truncated tRNAs are common phenomena in soft scales. The average A + T content and codon usage bias of scale insects are higher and stronger than those of other hemipteran insects, respectively. The atp8 gene of Hemiptera and nine other protein-coding genes of scale insects are under positive selection with higher evolutionary rates.
Conclusions
The study revealed the particularity of the scale insect mitogenomes, which will provide a good reference for future research on insect phylogenetic relationships, insect pest control, biogeography and identification.
Publisher
Springer Science and Business Media LLC
Reference76 articles.
1. Hodgson CJ. The scale insect family Coccidae: an identification manual to genera: CAB international. Oxon, UK: Wallingford; 1994.
2. Kondo T, Gullan PJ, Williams DJ. Coccidology. The study of scale insects (Hemiptera: Sternorrhyncha: Coccoidea). Rev corpoica-cienc T. 2008;9(2):55–61.
3. García Morales M, Denno BD, Miller DR, Miller GL, Ben-Dov Y, Hardy NB: ScaleNet: a literature-based model of scale insect biology and systematics. http://scalenet.info, 2016 (accessed 17 May 2022).
4. Gullan PJ, Kosztarab M. Adaptations in scale insects. Annu Rev Entomol. 1997;42(1):23–50.
5. Gullan PJ, Martin JH. Sternorrhyncha: (jumping plant-lice, whiteflies, aphids, and scale insects). In: Encyclopedia of insects. San Diego: Elsevier; 2009. p. 957–67.
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