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<p>The escalating global movement of alien species, facilitated by increased trade and travel, poses a pressing need to comprehend their invasive potential and the consequent ecological and economic ramifications. Despite a growing body of evidence on rapid evolutionary shifts in invasive species, comprehensive insights into the genetic variability underlying these adaptations are constrained by limited genomic resources. Understanding the role of genetic variation in the success or failure of biological invaders is thus crucial. This study focuses on the chrysanthemum lace bug, <i>Corythucha marmorata</i>, as a model system to investigate the interplay of genetic variation and invasion dynamics. Our analysis reveals moderate genetic structure among countries, with significant genetic differentiation observed within populations. Mitochondrial COI DNA and haplotype network analysis revealed shared haplotypes between Japan and North America, indicating recent events of introduction, while exclusive Japanese haplotypes and significant FST and GST values suggest local divergence. Phylogenetic and STRUCTURE analyses show genetic clusters unique to Japan, with populations like SAG and CER displaying higher divergence. Bottlenecks followed by divergence, as indicated by the DIYABC-RF analysis, point to a complex evolutionary history involving multiple introductions and subsequent local divergence in Japan.</p>

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Population genomics and genetic diversity of the invasive chrysanthemum lace bug (Corythucha marmorata) across its invasive range in Japan

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月24日

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  • Gonzalo Contreras-Negrete,
  • Rubi N. Meza-Lázaro,
  • Pilar Benites,
  • Víctor E. Becerra-Lira,
  • Yuzu Sakata,
  • Takayuki Ohgushi,
  • Timothy P. Craig,
  • Johanne Itami,
  • Alejandro Zaldívar-Riverón,
  • Antonio Hernández-López

摘要

The escalating global movement of alien species, facilitated by increased trade and travel, poses a pressing need to comprehend their invasive potential and the consequent ecological and economic ramifications. Despite a growing body of evidence on rapid evolutionary shifts in invasive species, comprehensive insights into the genetic variability underlying these adaptations are constrained by limited genomic resources. Understanding the role of genetic variation in the success or failure of biological invaders is thus crucial. This study focuses on the chrysanthemum lace bug, Corythucha marmorata, as a model system to investigate the interplay of genetic variation and invasion dynamics. Our analysis reveals moderate genetic structure among countries, with significant genetic differentiation observed within populations. Mitochondrial COI DNA and haplotype network analysis revealed shared haplotypes between Japan and North America, indicating recent events of introduction, while exclusive Japanese haplotypes and significant FST and GST values suggest local divergence. Phylogenetic and STRUCTURE analyses show genetic clusters unique to Japan, with populations like SAG and CER displaying higher divergence. Bottlenecks followed by divergence, as indicated by the DIYABC-RF analysis, point to a complex evolutionary history involving multiple introductions and subsequent local divergence in Japan.