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Late Pleistocene climate change and population dynamics of Japanese Myodes voles inferred from mitochondrial cytochrome b sequences

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Title: Late Pleistocene climate change and population dynamics of Japanese Myodes voles inferred from mitochondrial cytochrome b sequences
Authors: Honda, Asuka Browse this author
Murakami, Shota Browse this author
Harada, Masashi Browse this author
Tsuchiya, Kimiyuki Browse this author
Kinoshita, Gohta Browse this author
Suzuki, Hitoshi Browse this author →KAKEN DB
Keywords: cytochrome b
evolutionary rate
mitochondrial DNA
Quaternary ice age impact
red-backed voles
the Japanese Islands
Issue Date: 27-Jul-2019
Publisher: Oxford University Press
Journal Title: Journal of mammalogy
Volume: 100
Issue: 4
Start Page: 1156
End Page: 1168
Publisher DOI: 10.1093/jmammal/gyz093
Abstract: The Japanese archipelago is comprised of four main islands-Hokkaido, Honshu, Shikoku, and Kyushu-which contain high mountainous areas that likely allowed for lineage differentiation and population genetic structuring during the climatic changes of the late Pleistocene. Here, we assess the historical background of the evolutionary dynamics of herbivorous red-backed voles (Myodes) in Japan, examining the evolutionary trends of mitochondrial cytochrome b gene (Cytb) sequence variation. Four apparent signals from rapid expansion events were detected in three species, M. rufocanus and M. rutilus from Hokkaido and M. smithii from central Honshu. Taken together with results from previous studies on Japanese wood mice (Apodemus spp.), three of the expansion events were considered to be associated with predicted bottleneck events at the marine isotope stage (MIS) 4 period, in which glaciers are thought to have expanded extensively, especially at higher elevations. In the late Pleistocene, the possible candidates are transitions MIS 6/5, MIS 4/3, and MIS 2/1, which can be characterized by the cold periods of the penultimate glacial maximum, MIS 4, and the last glacial maximum, respectively. Our data further reveal the genetic footprints of repeated range expansion and contraction in the northern and southern lineages of the vole species currently found in central Honshu, namely M. andersoni and M. smithii, in response to climatic oscillation during the late Pleistocene. The time-dependent evolutionary rates of the mitochondrial Cytb presented here would provide a possible way for assessing population dynamics of cricetid rodents responding to the late Pleistocene environmental fluctuation.
Rights: https://creativecommons.org/licenses/by-nc/4.0/
Type: article
URI: http://hdl.handle.net/2115/75388
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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