叶蝉的基因组变异揭示了其适应性进化的基础

IF 11.5 2区 生物学 Q1 GENETICS & HEREDITY Genomics, Proteomics & Bioinformatics Pub Date : 2022-12-01 DOI:10.1016/j.gpb.2022.05.011
Qian Zhao , Longqing Shi , Weiyi He , Jinyu Li , Shijun You , Shuai Chen , Jing Lin , Yibin Wang , Liwen Zhang , Guang Yang , Liette Vasseur , Minsheng You
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引用次数: 3

摘要

茶绿叶蝉(Empoasca onukii)具有重要的生物学和经济价值。尽管进行了大量的研究,但其适应和进化的机制仍然是一个谜。在这里,我们使用以前未开发的基因组和群体遗传学方法来研究害虫如何适应不同的环境变量,从而在地理上扩展。我们完成了onukii基因组的染色体水平组装和注释,显示了与适应化学接受和解毒相关的基因家族的显着扩展。表明平衡选择的基因组信号强调了在生态多样化地区种植的广泛茶叶品种的适应中涉及的代谢途径。54份乌龙茶属样本的遗传变异模式揭示了中国不同茶叶产区的种群结构和进化历史。我们的研究结果表明,包括与代谢、昼夜节律和免疫系统功能相关的关键途径的基因组变化可能是onukii成功传播和适应的基础。这项工作强调了具有广泛经济影响的物种进化成功的遗传和分子基础,并提供了昆虫适应寄主植物的见解,这将最终促进更可持续的害虫管理。
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Genomic Variations in the Tea Leafhopper Reveal the Basis of Its Adaptive Evolution

Tea green leafhopper (TGL), Empoasca onukii, is of biological and economic interest. Despite numerous studies, the mechanisms underlying its adaptation and evolution remain enigmatic. Here, we use previously untapped genome and population genetics approaches to examine how the pest adapted to different environmental variables and thus has expanded geographically. We complete a chromosome-level assembly and annotation of the E. onukii genome, showing notable expansions of gene families associated with adaptation to chemoreception and detoxification. Genomic signals indicating balancing selection highlight metabolic pathways involved in adaptation to a wide range of tea varieties grown across ecologically diverse regions. Patterns of genetic variations among 54 E. onukii samples unveil the population structure and evolutionary history across different tea-growing regions in China. Our results demonstrate that the genomic changes in key pathways, including those linked to metabolism, circadian rhythms, and immune system functions, may underlie the successful spread and adaptation of E. onukii. This work highlights the genetic and molecular basis underlying the evolutionary success of a species with broad economic impacts, and provides insights into insect adaptation to host plants, which will ultimately facilitate more sustainable pest management.

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来源期刊
Genomics, Proteomics & Bioinformatics
Genomics, Proteomics & Bioinformatics Biochemistry, Genetics and Molecular Biology-Biochemistry
CiteScore
14.30
自引率
4.20%
发文量
844
审稿时长
61 days
期刊介绍: Genomics, Proteomics and Bioinformatics (GPB) is the official journal of the Beijing Institute of Genomics, Chinese Academy of Sciences / China National Center for Bioinformation and Genetics Society of China. It aims to disseminate new developments in the field of omics and bioinformatics, publish high-quality discoveries quickly, and promote open access and online publication. GPB welcomes submissions in all areas of life science, biology, and biomedicine, with a focus on large data acquisition, analysis, and curation. Manuscripts covering omics and related bioinformatics topics are particularly encouraged. GPB is indexed/abstracted by PubMed/MEDLINE, PubMed Central, Scopus, BIOSIS Previews, Chemical Abstracts, CSCD, among others.
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