Integrative genomic analyses reveal genetic structuring and cyto-nuclear incongruences within the Corbicula species complex in China

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dc.contributor.authorTang, Yangxin
dc.contributor.authorLiu, Linwei
dc.contributor.authorPi, Jie
dc.contributor.authorLiu, Xinhua
dc.contributor.authorXiang, Jianguo
dc.contributor.authorPark, Joong Ki
dc.contributor.authorCoughlan, Neil E.
dc.contributor.authorLi, Deliang
dc.contributor.funderNational Natural Science Foundation of China, 31772832
dc.contributor.funderNational Key Research and Development Program of China, 2023YFD2400902
dc.contributor.funderNational Research Foundation of Korea, 2020R1A2C2005393
dc.date.accessioned2026-04-30T12:50:07Z
dc.date.available2026-04-30T12:50:07Z
dc.date.embargoedUntil2027-04-17
dc.date.issued2026-04-17
dc.description© 2026 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
dc.description.abstractInvestigating the genetic relationships within the Corbicula species complex poses significant challenges, primarily stemming from cyto-nuclear mismatches, arising from their asexual androgenesis and hybridizations between distinct genetic lineages. In this study, we examined the genetic relationships among Corbicula populations in their native range in China for the first time by integrating mitochondrial and nuclear datasets, with a specific focus on assessing cyto-nuclear incongruences. Sequencing data from 73 individuals across 17 Corbicula populations revealed marked genetic structuring, delineating three major clades: CGA (Corbicula Group A), CGB, and CGC. CGA exhibited substantial genetic differentiation from CGB and CGC, with relatively high Fst values of 0.87 and 0.83, respectively, whereas CGB and CGC showed moderate differentiation (Fst = 0.15). Phylogenetic analyses of genomic SNP and mitochondrial COI datasets uncovered significant topological conflicts within CGC. The Hap3 (invasive form B, FW1) was identified in individuals across CGB and CGC, showing high abundance and a wide distribution. CGA was inferred to be a putative estuarine species C. aff. japonica. Additionally, COI sequencing of 534 individuals from 26 populations identified three major clades, providing an updated mitochondrial phylogeny of Corbicula within its native range in China. Collectively, our findings indicate that the Corbicula species complex in its native range can be assigned into three major groups, with notable cyto-nuclear incongruences prevalent across these lineages.en
dc.description.sponsorshipThis study was supported by the National Natural Science Foundation of China (31772832), the National Key Research and Development Program of China (No. 2023YFD2400902) and the earmarked fund for HARS (HARS-07). National Research Foundation of Korea (NRF) funded by the Korean Government (MSIT) (No. 2020R1A2C2005393).
dc.format.extent9
dc.format.extent744023
dc.identifier.articleid108624
dc.identifier.authororcidTang, Yangxin
dc.identifier.authororcidLiu, Linwei
dc.identifier.authororcidPi, Jie
dc.identifier.authororcidLiu, Xinhua
dc.identifier.authororcidXiang, Jianguo
dc.identifier.authororcidPark, Joong Ki
dc.identifier.authororcidCoughlan, Neil E.§0000-0001-5597-3238
dc.identifier.authororcidLi, Deliang
dc.identifier.citationTang, Y, Liu, L, Pi, J, Liu, X, Xiang, J, Park, J K, Coughlan, N E & Li, D 2026, 'Integrative genomic analyses reveal genetic structuring and cyto-nuclear incongruences within the Corbicula species complex in China', Molecular Phylogenetics and Evolution, vol. 221, 108624, pp. 1-9. https://doi.org/10.1016/j.ympev.2026.108624
dc.identifier.doi10.1016/j.ympev.2026.108624
dc.identifier.endpage9
dc.identifier.issn1055-7903
dc.identifier.journaltitleMolecular Phylogenetics and Evolution
dc.identifier.otherORCID: /0000-0001-5597-3238/work/213415990
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/18717
dc.identifier.urlhttps://www.scopus.com/pages/publications/105036228610
dc.identifier.volume221
dc.language.isoeng
dc.rightscc_by_nc_nd
dc.subjectSDG 15 - Life on Land
dc.subjectAsian clam
dc.subjectCytonuclear mismatch
dc.subjectMitochondrialCOI
dc.subjectPhylogenomics
dc.subject[BEES]
dc.subjectEcology, Evolution, Behavior and Systematics
dc.subjectMolecular Biology
dc.subjectGenetics
dc.titleIntegrative genomic analyses reveal genetic structuring and cyto-nuclear incongruences within the Corbicula species complex in Chinaen
dc.typeArticle (Peer reviewed)
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