Natural History Research Center, Shanghai Natural History Museum, Shanghai Science Technology Museum, Shanghai, 200041, China. .
Department of Entomology, College of Plant Protection, Nanjing Agricultural University, 210095, Nanjing, China. .
Zootaxa. 2021 Aug 11;5020(1):191-196. doi: 10.11646/zootaxa.5020.1.11.
Here, the first record of Seira dowlingi from Asia is reported and its newly generated mitogenome is compared with Neotropical specimens. Molecular analyses were performed based on low-coverage whole-genome sequencing and the complete mitogenome was assembled using NovoPlasty. Our results show that the Chinese specimens have the same color pattern, chaetotaxy, and almost identical mitogenomes, differing only on three nucleotides located in protein-coding genes. A maximum-likelihood phylogeny based on 13 mitochondrial genes was made and the specimens similarity was confirmed, as well as its phylogenetic position. Considering the large geographic distance between the American and the Asiatic populations, we believe that the presence of S. dowlingi in China is a result of anthropogenic introduction. The data generated here can be useful for further phylogeographic studies related to Seirinae subfamily or Collembola fauna in general.
本文首次报道了亚洲的 Seira dowlingi，并将其新生成的线粒体基因组与新热带地区的标本进行了比较。分子分析基于低覆盖度全基因组测序进行，完整的线粒体基因组使用 NovoPlasty 组装。我们的结果表明，中国标本具有相同的颜色模式、刚毛结构，并且线粒体基因组几乎完全相同，仅在三个位于蛋白质编码基因中的核苷酸上存在差异。基于 13 个线粒体基因构建了最大似然系统发育树，确认了标本的相似性及其系统发育位置。考虑到美洲和亚洲种群之间的地理距离很大，我们认为中国的 S. dowlingi 是人为引入的结果。这里生成的数据可用于进一步的与 Seirinae 亚科或总体而言 Collembola 动物群相关的系统地理学研究。
