Genetic structures of the Japanese stone loach Barbatula oreas (Cypriniformes: Nemacheilidae) in Sakhalin and Hokkaido: back dispersal from Hokkaido to Sakhalin
Hayato Niinuma, Kensuke Kobayashi, Masaki Takenaka, Gaku Ueki, Sergei V. Shedko, Татьяна Степановна Вшивкова, Koji Tojo
The paper investigates the genetic structure and phylogeographic history of Barbatula oreas in Hokkaido and Sakhalin, finding back dispersal from islands to the mainland and challenging the conventional dispersal paradigm.
bioRxiv · Jun 18, 2026 · PreprintMolecular Biology