2024-03-28T09:57:32Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02011111
2023-08-03T05:35:07Z
1642838163960:1642838338003
1642838403551:1642838406414
Genetic population structure of the fiddler crab Austruca lactea (De Haan, 1835) based on mitochondrial DNA control region sequences
Tokuyama, Takenobu
Shy, Jhy-Yun
Lin, Hui-Chen
Henmi, Yasuhisa
Mather, Peter
Hughes, Jane
Tsuchiya, Makoto
Imai, Hideyuki
The fiddler crab, Austruca lactea inhabits tidal flat areas and is widely distributed across Japan, the Korean Peninsula, China, Taiwan and northern Vietnam. Fiddler crab habitat is being lost rapidly due to human impacts and this species is currently listed as endangered in Japan. We studied the population genetic structure of A. lactea using mitochondrial DNA control region markers to define management units. A. lactea individuals were sampled from Osaka, Hiroshima and Kumamoto in Japan, and from Taichung and the Penghu Islands in Taiwan. All local samples exhibited high levels of genetic diversity, and no sampled populations showed evidence for a significant decline in effective population size that can result from population bottleneck effects. Pairwise FST estimates distinguished three discrete A. lactea populations corresponding with, the Seto Inland Sea (Osaka and Hiroshima), Kyushu (Kumamoto) and Taiwan. The three populations showed clear differences in historical population expansion times and their population dynamics after expansion. Results of the study indicate that A. lactea dispersal is limited geographically and that high levels of genetic diversity are maintained both within and among populations.
論文
http://purl.org/coar/resource_type/c_6501
Carcinological Society of Japan
日本甲殻類学会
2020-09-03
VoR
http://hdl.handle.net/20.500.12000/46908
2189-5317
0287-3478
AA10988150
Crustacean Research
49
153
141
eng
https://doi.org/10.18353/crustacea.49.0_141
https://doi.org/10.18353/crustacea.49.0_141
open access