A chromosome-level genome of Semiothisa cinerearia provides insights into its genome evolution and control

Author:

Chi Shengqi,Wang Yanchun,Wang Zhongkai,Li Haorong,Gu Songdong,Ren Yandong

Abstract

Abstract Background Semiothisa cinerearia belongs to Geometridae, which is one of the most species-rich families of lepidopteran insects. It is also one of the most economically significant pests of the Chinese scholar tree (Sophora japonica L.), which is an important urban greenbelt trees in China due to its high ornamental value. A genome assembly of S. cinerearia would facilitate study of the control and evolution of this species. Results We present a reference genome for S. cinerearia; the size of the genome was ~ 580.89 Mb, and it contained 31 chromosomes. Approximately 43.52% of the sequences in the genome were repeat sequences, and 21,377 protein-coding genes were predicted. Some important gene families involved in the detoxification of pesticides (P450) have expanded in S. cinerearia. Cytochrome P450 gene family members play key roles in mediating relationships between plants and insects, and they are important in plant secondary metabolite detoxification and host-plant selection. Using comparative analysis methods, we find positively selected gene, Sox15 and TipE, which may play important roles during the larval-pupal metamorphosis development of S. cinerearia. Conclusion This assembly provides a new genomic resource that will aid future comparative genomic studies of Geometridae species and facilitate future evolutionary studies on the S. cinerearia.

Funder

Modern Agriculture Industrial Technology System Funding of Shandong Province

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Genetics,Biotechnology

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