Rapid evolution of novel biotic interactions in the UK Brown Argus butterfly uses genomic variation from across its geographical range.
Rapid evolution of novel biotic interactions in the UK Brown Argus butterfly uses genomic variation from across its geographical range.
复制标题
英国褐阿格斯蝴蝶新型生物相互作用的快速进化利用了其整个地理范围内的基因组变异。
DOI：
10.1111/mec.17138
复制
发表时间：
2023
影响因子：
4.9
通讯作者：
De Jong M
中科院分区：
文献类型：
--
作者：
De Jong M
了解种群在其生态边缘适应新环境的速度和程度，对于预测生物群落在持续快速的全球变化中的持久性至关重要。最近的范围扩大，以应对气候变化，在英国butterflyAricia agestisis与新的相互作用的演变与幼虫食用植物，并失去其使用祖先宿主物种的能力。使用ddRAD分析61，210个可变的SNP从261个女性从整个英国范围内的这个物种，我们确定在多个染色体的基因组区域与进化反应，以及它们与人口统计学的历史和生态变化。基因流在整个范围内广泛出现，尽管这个物种所使用的栖息地明显是碎片化的。选择和中性基因组区域之间的单倍型变异模式表明，与气候适应相关的进化是多基因的，这是由于等位基因在该物种的整个既定范围内的独立传播，而不是来自沿海种群的预适应基因型的殖民化。这些数据表明，对气候变化的快速反应并不依赖于预适应基因型的可用性。相反，在A.agestishas中，新形式的生物相互作用的进化发生在范围扩展期间，通过来自多个地点的等位基因的新基因型的组装。
Understanding the rate and extent to which populations can adapt to novel environments at their ecological margins is fundamental to predicting the persistence of biological communities during ongoing and rapid global change. Recent range expansion in response to climate change in the UK butterflyAricia agestisis associated with the evolution of novel interactions with a larval food plant, and the loss of its ability to use an ancestral host species. Using ddRAD analysis of 61,210 variable SNPs from 261 females from throughout the UK range of this species, we identify genomic regions at multiple chromosomes that are associated with evolutionary responses, and their association with demographic history and ecological variation. Gene flow appears widespread throughout the range, despite the apparently fragmented nature of the habitats used by this species. Patterns of haplotype variation between selected and neutral genomic regions suggest that evolution associated with climate adaptation is polygenic, resulting from the independent spread of alleles throughout the established range of this species, rather than the colonization of pre‐adapted genotypes from coastal populations. These data suggest that rapid responses to climate change do not depend on the availability of pre‐adapted genotypes. Instead, the evolution of novel forms of biotic interaction inA. agestishas occurred during range expansion, through the assembly of novel genotypes from alleles from multiple localities.