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Population Genomics Provide Insights into the Evolution and Adaptation of the Asia Corn Borer

文献类型： 外文期刊

作者： Peng, Yan 1 ; Jin, Minghui 2 ; Li, Zhimin 1 ; Li, Hongran 2 ; Zhang, Lei 2 ; Yu, Songmiao 2 ; Zhang, Zhuting 2 ; Fan, Ruyi 1 ; Liu, Jimin 1 ; Xu, Qi 2 ; Wilson, Kenneth 2 ; Xiao, Yutao 2 ;

作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan, Peoples R China

2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Minist Agr & Rural Affairs, Shenzhen Branch,Guangdong Lab Lingnan Modern Agr,K, Shenzhen, Peoples R China

3.Guangxi Acad Agr Sci, Plant Protect Res Inst, Guangxi Key Lab Biol Crop Dis & Insect Pests, Key Lab Green Prevent & Control Fruits & Vegetable, Nanning, Peoples R China

4.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England

关键词： Ostrinia furnacalis; climatic adaptation; the risk of adaptation; population genomics

期刊名称：MOLECULAR BIOLOGY AND EVOLUTION （ 影响因子：10.7； 五年影响因子：15.1 ）

ISSN： 0737-4038

年卷期： 2023 年 40 卷 5 期

页码：

收录情况： SCI

摘要： Understanding the genetic basis of pest adaptive evolution and the risk of adaptation in response to climate change is essential for the development of sustainable agricultural practices. However, the genetic basis of climatic adaptation for the Asian corn borer (ACB), Ostrinia furnacalis, the main pest of corn in Asia and Oceania, is poorly understood. Here, we revealed the genomic loci underlying the climatic adaptation and evolution in ACB by integrating population genomic and environmental factors. We assembled a 471-Mb chromosome-scale reference genome of ACB and resequenced 423 individuals covering 27 representative geographic areas. We inferred that the ACB effective population size changes tracked with the global temperature and followed by a recent decline. Based on an integrated analysis of whole-genome selection scans and genome-wide genotype-environment association studies, we revealed the genetic basis of ACB adaption to diverse climates. For diapause traits, we identified a major effect association locus containing a circadian clock gene (period) by analyzing a diapause-segregating population. Moreover, our predictions indicated that the northern populations were more ecologically resilient to climate change than the southern populations. Together, our results revealed the genomic basis for ACB environmental adaptation and provided potential candidate genes for future evolutionary studies and genetic adaptation to climate change, intending to maintain the efficacy and sustainability of novel control techniques.

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