History of the terrestrial isopod genus Ligidium in Japan based on phylogeographic analysis

BMC Ecology and Evolution

Research

Aya Saito¹  Chika Zemmoto¹  Atsushi J. Nagano²  Touta Yokoi³  Shigenori Karasawa³  Masanobu Yamamoto⁴  Hitoshi Suzuki⁴  Wakana Harigai⁵ 

[1] Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, Kita-Ku, 060-0810, Sapporo, Japan;Faculty of Agriculture, Ryukoku University, 520-2194, Otsu, Shiga, Japan;Institute for Advanced Biosciences, Keio University, 997-0017, Tsuruoka, Yamagata, Japan;Faculty of Agriculture, Tottori University, 4-101, Koyama-Cho Minami, 680-8553, Tottori, Japan;Graduate School of Environmental Science, Hokkaido University, Kita-Ku, 060-0810, Sapporo, Japan;Faculty of Environmental Earth Science, Hokkaido University, Kita-Ku, 060-0810, Sapporo, Japan;Graduate School of Environmental Science, Hokkaido University, Kita-Ku, 060-0810, Sapporo, Japan;Present address: Department of Child Development and Molecular Brain Science, United Graduate School of Child Development, Osaka University, 565-0871, Suita, Japan;

关键词: Genome-wide analysis;    Geology;    Ligidium;    Phylogeography;    Quaternary glacial cycle;    RAD-seq;   

DOI  :  10.1186/s12862-023-02144-8

 received in 2022-08-18, accepted in 2023-07-26,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundPhylogeographical approaches explain the genetic diversity of local organisms in the context of their geological and geographic environments. Thus, genetic diversity can be a proxy for geological history. Here we propose a genus of woodland isopod, Ligidium, as a marker of geological history in relation to orogeny and the Quaternary glacial cycle.ResultsMitochondrial analysis of 721 individuals from 97 sites across Japan revealed phylogenetic divergence between the northeastern and southwestern Japan arcs. It also showed repeated population expansions in northeastern Japan in response to Quaternary glacial and interglacial cycles. Genome-wide analysis of 83 selected individuals revealed multiple genetic nuclear clusters. The genomic groupings were consistent with the local geographic distribution, indicating that the Ligidium phylogeny reflects its regional history.ConclusionLigidium DNA sequence analysis can provide insight into the geological, geographical, and paleoenvironmental history of the studied region.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

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