[MGI25-P02] Effects of mountain ranges on the genetic structures of the burrowing mayflies, Ephoron (Polymitarcyidae)
Keywords:Phylogeography, Ephemeroptera, DNA
In this study, I studied the genetic structures of E. shigae populations to examine, whether the populations are fragmented by mountains. In addition, I also examined the genetic structures of E. nigridorsum which is distributed in the Mongolian Selenge River basin.
As results, although E. nigridorsum had high genetic diversity, there was little geographic cluster of haplotypes within the river basin. In addition, the genetic structure showed stable type for long time. Although Korean E. shigae did not show clear fragmentation by geographic barrier such as the Sobaek Mountains, Japanese E. shigae was divided to two groups, the Eastern and Western Japanese groups. The migration and gene flow of Japanese E. shigae would have been affected by the geological events around the Fossa Magna and the Japanese Alps.