Biogeography of Korea’s top predator, the yellow-throated Marten: evolutionary history and population dynamics

BMC Evolutionary Biology

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[1] 0000 0001 1503 7226, grid.5808.5, CIBIO/InBIO (Centro de Investigação em Biodiversidade e Recursos Genéticos), Universidade do Porto, Campus Agrario De Vairão, 4485-661, Vairão, Portugal;grid.496435.9, National Institute of Ecology, 1210, Geumgang-ro, Maseo-myeon, 33657, Seocheon-gun, South Chungcheong province, Republic of Korea;0000 0001 2157 2938, grid.17063.33, Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks, M5S 3B2, Toronto, Ontario, Canada;0000 0004 1937 0650, grid.7400.3, Institute of Evolutionary Biology and Environmental Studies (IEU), University of Zurich, Winterthurerstrasse, 190, Zurich, Switzerland;United Administration of Lazovsky State Nature Reserve and National Park “Zov tigra”, 56 Centralnaya St. Lazo, 692980, Primorsky Krai, Russia;grid.496435.9, National Institute of Ecology, 1210, Geumgang-ro, Maseo-myeon, 33657, Seocheon-gun, South Chungcheong province, Republic of Korea;

关键词: Martes flavigula;    Korean Peninsula;    Ice ages;    Yellow Sea;    Dispersal;    Biogeography;   

DOI  :  10.1186/s12862-019-1347-x

来源: publisher

【 摘 要 】

BackgroundPeninsulas often harvest high genetic diversity through repeated southward migrations of species during glacial maxima. Studies addressing within-species evolutionary responses to climate fluctuations in northeast Asia are limited compared to other regions of the world, and more so in the Korean Peninsula. In this study, we conducted the first population-level study of the yellow-throated marten, Martes flavigula, from the Korean Peninsula, Russian, Taiwanese and Chinese localities in a biogeographic framework using mitochondrial (cyt-b, nd2, cr) and nuclear gene sequencing (ghr).ResultsBayesian analyses revealed a rather young population, with a split from the most recent common ancestor at around 125 kya. Martes flavigula likely colonized the Korean Peninsula from Mainland China through the Yellow Sea twice, ca. 60 kya and 20 kya. Korean martens diversified during the Late Pleistocene with at least two dispersal events out of Korea, towards the southwest to Taiwan (ca. 80 kya) and towards the North into Russia and eastern China; most likely after the Last Glacial Maxima (ca. 20 kya). We argue that the lack of population structure and mixed populations is possibly a consequence of the high dispersal capability of the species. The Bayesian skyline plot revealed a population decline within the last 5000 years, suggesting potential negative biotic and anthropogenic effects in the area. We find that local populations are not genetically differentiated, therefore no perceptible population structure within Korea was found.ConclusionsThe topography and geography of the Korean Peninsula has played a pivotal role in its colonization. Connections between the Korean Peninsula and the Mainland through sea-level drops of the Yellow Sea at times of glacial maxima and the high dispersal capability of M. flavigula adds to the lack of geographical structure in this species and the paraphyly of Korean lineages.

【 授权许可】

CC BY