Evaluating the roles of geography and environment for European-wide spatial genetic structure in three Argynnini butterfly species

The relative contributions of different evolutionary processes may vary even between coexisting closely related species, owing to ecological differences and species-specific responses to environmental conditions. A large-scale comparative phylogeographic approach help reveal how convergent evolution and species-specific responses to environmental factors jointly shape genetic diversity and structure in closely related species. In this project, we conducted a comparative phylogeographic study on three Argynnini butterfly species (Fabriciana adippe, F. niobe and Speyeria aglaja) by studying European-wide population genetic structure of the species using nuclear ddRAD-sequencing SNP markers and mitochondrial COI sequences.

即便共存的近缘物种之间，不同演化过程的相对贡献度也可能存在差异，这源于生态分化与物种对环境条件的特异性响应。大规模比较系统地理学（comparative phylogeography）研究方法，有助于揭示趋同演化与物种对环境因子的特异性响应如何共同塑造近缘物种的遗传多样性与种群遗传结构。本研究针对三种豹蛱蝶族（Argynnini）蝴蝶（Fabriciana adippe、F. niobe及Speyeria aglaja）开展比较系统地理学研究，采用核基因组双酶切限制性位点相关DNA测序（double digest restriction-site associated DNA sequencing, ddRAD-seq）得到的单核苷酸多态性（Single Nucleotide Polymorphism, SNP）标记与线粒体COI（细胞色素c氧化酶亚基I）序列，分析该类群在欧洲全域的种群遗传结构。