Assessing genome-wide adaptations associated with range expansion in the pink rice borer, Sesamia inferens
文献类型: 外文期刊
作者: Li, Hongran;Peng, Yan;Wu, Chao;Li, Zhimin;Zou, Luming;Mao, Kaikai;Ping, Junfen;Buck, Ryan;Monahan, Scott;Sethuraman, Arun;Xiao, Yutao
作者机构:
关键词: (1-1-1)desiccation adaptability;evolutionary history;genetic adaptation;phylogeography;Sesamia inferens
期刊名称: Insect Science
ISSN: 1672-9609
年卷期: 2024 年
页码:
收录情况: SCIE(2024版) ; ; CSCD(2023-2024年度) ; ; 科技核心(2024版) ; ; 农林核心(2020版)
摘要: Understanding the genetic basis of adaptive evolution following habitat expansion can have important implications for pest management. The pink rice borer (PRB), Sesamia inferens (Walker), is a destructive pest of rice that was historically restricted to regions south of 34(degrees) N latitude in China. However, with changes in global climate and farming practices, the distribution of this moth has progressively expanded, encompassing most regions in North China. Here, 3 highly differentiated subpopulations were discovered using high-quality single-nucleotide polymorphism and structural variant datasets across China, corresponding to northern, southern China regions, and the Yunnan-Guizhou Plateau, with significant patterns of isolation by geographic and environmental distances. Our estimates of evolutionary history indicate asymmetric migration with varying population sizes across the 3 subpopulations. Selective sweep analyses estimated strong selection at insect cuticle glycine-rich cuticular protein genes which are associated with enhanced desiccation adaptability in the northern group, and at the histone-lysine-N-methyltransferase gene associated with range expansion and local adaptation in the Shandong population. Our findings have significant implications for the development of effective strategies to control this pest.
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