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dc.contributor.authorXu, Ting  Concept link
dc.contributor.authorSun, Jin  Concept link
dc.contributor.authorWatanabe, Hiromi K.  Concept link
dc.contributor.authorChen, Chong  Concept link
dc.contributor.authorNakamura, Masako  Concept link
dc.contributor.authorJi, Rubao  Concept link
dc.contributor.authorFeng, Dong  Concept link
dc.contributor.authorLv, Jia  Concept link
dc.contributor.authorWang, Shi  Concept link
dc.contributor.authorBao, Zhenmin  Concept link
dc.contributor.authorQian, Pei-Yuan  Concept link
dc.contributor.authorQiu, Jian-Wen  Concept link
dc.identifier.citationEvolutionary Applications 11 (2018): 1915-1930en_US
dc.description© The Author(s), 2018. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Evolutionary Applications 11 (2018): 1915-1930, doi:10.1111/eva.12696.en_US
dc.description.abstractStudying population genetics of deep‐sea animals helps us understand their history of habitat colonization and population divergence. Here, we report a population genetic study of the deep‐sea mussel Bathymodiolus platifrons (Bivalvia: Mytilidae) widely distributed in chemosynthesis‐based ecosystems in the Northwest Pacific. Three mitochondrial genes (i.e., atp6, cox1, and nad4) and 6,398 genomewide single nucleotide polymorphisms (SNPs) were obtained from 110 individuals from four hydrothermal vents and two methane seeps. When using the three mitochondrial genes, nearly no genetic differentiation was detected for B. platifrons in the Northwest Pacific. Nevertheless, when using SNP datasets, all individuals in the South China Sea (SCS) and three individuals in Sagami Bay (SB) together formed one genetic cluster that was distinct from the remaining individuals. Such genetic divergence indicated a genetic barrier to gene flow between the SCS and the open Northwest Pacific, resulting in the co‐occurrence of two cryptic semi‐isolated lineages. When using 125 outlier SNPs identified focusing on individuals in the Okinawa Trough (OT) and SB, a minor genetic subdivision was detected between individuals in the southern OT (S‐OT) and those in the middle OT (M‐OT) and SB. This result indicated that, although under the influence of the Kuroshio Current and the North Pacific Intermediate Water, subtle geographic barriers may exist between the S‐OT and the M‐OT. Introgression analyses based on these outlier SNPs revealed that Hatoma Knoll in the S‐OT represents a possible contact zone for individuals in the OT‐SB region. Furthermore, migration dynamic analyses uncovered stronger gene flow from Dai‐yon Yonaguni Knoll in the S‐OT to the other local populations, compared to the reverse directions. Taken together, the present study offered novel perspectives on the genetic connectivity of B. platifrons mussels, revealing the potential interaction of ocean currents and geographic barriers with adaption and reproductive isolation in shaping their migration patterns and genetic differentiation in the Northwest Pacific.en_US
dc.description.sponsorshipGeneral Research Fund Grant Number: HKBU12302917; Hong Kong Baptist University Grant Number: 15‐1012‐P04en_US
dc.publisherJohn Wiley & Sonsen_US
dc.rightsAttribution 4.0 International*
dc.subjectGenetic structureen_US
dc.subjectMigration patternsen_US
dc.subjectMitochondrial genesen_US
dc.subjectPopulation connectivityen_US
dc.titlePopulation genetic structure of the deep‐sea mussel Bathymodiolus platifrons (Bivalvia: Mytilidae) in the Northwest Pacificen_US

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Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International