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Chromosome-level genome of the peach fruit moth Carposina sasakii (Lepidoptera: Carposinidae) provides a resource for evolutionary studies on moths

文献类型： 外文期刊

作者： Cao, Li-Jun 1 ; Song, Wei 1 ; Yue, Lei 1 ; Guo, Shao-Kun 1 ; Chen, Jin-Cui 1 ; Gong, Ya-Jun 1 ; Hoffmann, Ary Anthony; 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, 9 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China

2.Univ Melbourne, Inst Bio21, Sch BioSci, Parkville, Vic, Australia

关键词： annotation; de novo assembly; detoxification; diapause; insect

期刊名称：MOLECULAR ECOLOGY RESOURCES （ 影响因子：7.09； 五年影响因子：8.745 ）

ISSN： 1755-098X

年卷期： 2021 年 21 卷 3 期

页码：

收录情况： SCI

摘要： The peach fruit moth (PFM), Carposina sasakii Matsumura, is a major phytophagous orchard pest widely distributed across Northeast Asia. Here, we report the chromosome-level genome for the PFM, representing the first genome for the family Carposinidae, from the lepidopteran superfamily Copromorphoidea. The genome was assembled into 404.83 Mb sequences using PacBio long-read and Illumina short-read sequences, including 275 contigs, with a contig N50 length of 2.62 Mb. All contigs were assembled into 31 linkage groups assisted by the Hi-C technique, including 30 autosomes and a Z chromosome. BUSCO analysis showed that 98.3% of genes were complete and 0.4% of genes were fragmented, while 1.3% of genes were missing in the assembled genome. In total, 21,697 protein-coding genes were predicted, of which 84.80% were functionally annotated. Because of the importance of diapause triggered by photoperiod in PFM, five circadian genes in the PFM as well as in the other related species were annotated, and potential genes related to diapause and photoperiodic reaction were also identified from transcriptome sequencing. In addition, manual annotation of detoxification gene families was undertaken and showed a higher number of glutathione S-transferase (GST) gene in PFM than in most other lepidopterans, in contrast to a lower number of uridine diphosphate (UDP)-glycosyltransferase (UGT) gene, carboxyl/cholinesterases (CCE) gene and cytochrome P450 monooxygenase (P450) gene, suggesting different detoxication pathways in this moth. The high-quality genome provides a resource for comparative evolutionary studies of this moth and its relatives within the context of radiations across Lepidoptera.

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