生物
有害生物分析
适应(眼睛)
人口
生殖器鳞翅目
航程(航空)
生态学
植物
人口学
材料科学
神经科学
社会学
复合材料
作者
Hongran Li,Yan Peng,Chao Wu,Zhimin Li,Lian Zou,Kaikai Mao,Ping Jiang,Ryan Buck,Scott Monahan,Arun Sethuraman,Yutao Xiao
标识
DOI:10.1111/1744-7917.13320
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° 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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