Chromosome-level genome of black cutworm provides novel insights into polyphagy and seasonal migration in insects
文献类型: 外文期刊
第一作者: Jin, Minghui
作者: Jin, Minghui;Liu, Bo;Zheng, Weigang;Liu, Conghui;Liu, Zhenxing;He, Yuan;Wu, Chao;Wang, Ping;Wu, Shigang;Liu, Hangwei;Chakrabarty, Swapan;Fan, Wei;Xiao, Yutao;Jin, Minghui;He, Yuan;Li, Xiaokang;Wu, Kongming;Zheng, Weigang;Yuan, Haibin;Liu, Conghui;Liu, Kaiyu;Wilson, Kenneth
作者机构:
关键词: Genome assembly; Comparative genomics; Transcriptome; Host adaptation; Migration; Cutworm
期刊名称:BMC BIOLOGY ( 影响因子:5.4; 五年影响因子:7.1 )
ISSN:
年卷期: 2023 年 21 卷 1 期
页码:
收录情况: SCI
摘要: Background: The black cutworm, Agrotis ipsilon, is a serious global underground pest. Its distinct phenotypic traits, especially its polyphagy and ability to migrate long distances, contribute to its widening distribution and increasing difficulty of control. However, knowledge about these traits is still limited. Results: We generated a high-quality chromosome-level assembly of A. ipsilon using PacBio and Hi-C technology with a contig N50 length of similar to 6.7 Mb. Comparative genomic and transcriptomic analyses showed that detoxification-associated gene families were highly expanded and induced after insects fed on specific host plants. Knockout of genes that encoded two induced ABC transporters using CRISPR/Cas9 significantly reduced larval growth rate, consistent with their contribution to host adaptation. A comparative transcriptomic analysis between tethered-flight moths and migrating moths showed expression changes in the circadian rhythm gene AiCry2 involved in sensing photoperiod variations and may receipt magnetic fields accompanied by MagR and in genes that regulate the juvenile hormone pathway and energy metabolism, all involved in migration processes. Conclusions: This study provides valuable genomic resources for elucidating the mechanisms involved in moth migration and developing innovative control strategies.
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