A phylogenomic perspective on the evolutionary history of the stonefly genus Suwallia (Plecoptera: Chloroperlidae) revealed by ultraconserved genomic elements

Evolutionary biologists have long sought to disentangle phylogenetic relationships among taxa spanning the tree of life, an increasingly important task as anthropogenic influences have caused, and are expected to continue to cause, population declines and species extinctions, particularly in insects. Advances in DNA sequencing techniques have increasingly facilitated the ability of researchers to apply genomic methods to phylogenetic analyses, even for non-model organisms which have historically lacked the genomic resources to do so. Phylogenetic relationships within the stonefly genus Suwallia (Insecta: Plecoptera: Chloroperlidae) are poorly understood, and have never been assessed using molecular data. We used DNA sequence data from genome-wide ultraconserved element loci to generate the first molecular phylogeny for the group and assess its monophyly. Our results reveal that the monospecific chloroperlid Neaviperla forcipata renders Suwallia paraphyletic, and we recommend a taxonomic...进化生物学家长期以来一直致力于厘清横跨生命之树的各生物类群间的系统发育关系。随着人为活动已引发且预计将持续造成种群衰退与物种灭绝（尤以昆虫类群为甚），该研究任务的重要性日益凸显。DNA测序技术的进步不断推动研究者将基因组学方法应用于系统发育分析，即便针对此前长期缺乏基因组研究资源的非模式生物亦然。石蝇属Suwallia（昆虫纲Insecta：襀翅目Plecoptera：绿石蝇科Chloroperlidae）内部的系统发育关系迄今仍未明确，且从未有基于分子数据的相关评估。本研究利用全基因组范围的超保守元件位点（ultraconserved element loci）序列数据，构建了该类群的首个分子系统发育树，并对其单系性进行了评估。研究结果显示，单种绿石蝇科物种Neaviperla forcipata使得Suwallia属呈现并系性，因此我们建议对分类学……