Journal
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
Volume 135, Issue 2, Pages 265-276Publisher
OXFORD UNIV PRESS
DOI: 10.1093/biolinnean/blab146
Keywords
Coleoptera; endangered species; genetic diversity; MIG-seq; ocean current; phylogeography; spatial genetic structure; Thalassoduvalius
Categories
Funding
- Japan Society for the Promotion of Science [NN: 19K15856]
Ask authors/readers for more resources
The study reveals that the genetic diversity of Thalassoduvalius masidai is higher, with populations divided into three groups: western Seto Inland Sea, eastern Seto Inland Sea, and Japan Sea coasts. The beetle may have migrated and dispersed from the south-western area of Japan through ocean currents.
The spatial genetic structures of insects are reflected in their habitats. Coastal insects tend to have less genetic differentiation than subterranean insects. However, the general pattern of population structure of coastal species residing in subterranean habitats is unknown. Thalassoduvalius masidai (Coleoptera: Carabidae:Trechinae), endemic to Japan, is a coastal and subterranean beetle. Here, we hypothesized that T. masidai populations disperse among regions by ocean currents, floods and tsunamis, despite their habitat being underground. To test this hypothesis, we performed a phylogeographical analysis of T. masidai using single nucleotide polymorphism data from multiplexed inter-simple sequence repeat genotyping by sequencing (MIG-seq) and the mitochondrial COI gene. The phylogenetic network and tree and STRUCTURE analyses indicated that T. masidai populations were divided into three groups: the western Seto Inland Sea-Izu Peninsula coasts, the eastern Seto Inland Sea-Kii Peninsula coasts and the Japan Sea coasts. The genetic diversity of T. masidai was higher in sites with lower longitude and latitude. These results suggest that T. masidai migrated and dispersed from the south-western area of Japan by ocean currents, despite its underground habitat. The genetic analysis data from the present study would also be helpful for the conservation and taxonomic revision of this species.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available