Assessing genome-wide adaptations associated with range expansion in the pink rice borer, Sesamia inferens

文献类型： 外文期刊

第一作者： Li, Hongran

作者： Li, Hongran;Peng, Yan;Wu, Chao;Li, Zhimin;Zou, Luming;Mao, Kaikai;Ping, Junfen;Xiao, Yutao;Buck, Ryan;Monahan, Scott;Sethuraman, Arun;Buck, Ryan;Xiao, Yutao

作者机构：

关键词： desiccation adaptability; evolutionary history; genetic adaptation; phylogeography; Sesamia inferens

期刊名称：INSECT SCIENCE （ 影响因子：4.0； 五年影响因子：3.6 ）

ISSN： 1672-9609

年卷期： 2024 年

页码：

收录情况： SCI

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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