Temperature drives reproductive activity in a rare trioecy population of Corbicula clams

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dc.contributor.authorPi, Jieen
dc.contributor.authorTang, Yangxinen
dc.contributor.authorCoughlan, Neil E.en
dc.contributor.authorLiu, Linweien
dc.contributor.authorWang, Xuen
dc.contributor.authorLiu, Xinhuaen
dc.contributor.authorXiang, Jianguoen
dc.contributor.authorLi, Deliangen
dc.contributor.funderNational Key Research and Development Program of Chinaen
dc.contributor.funderNational Key Research and Development Program of Chinaen
dc.contributor.funderHunan Provincial Modern Agricultural Research Systemen
dc.contributor.funderIrish Research Council for Science, Engineering and Technologyen
dc.date.accessioned2023-04-27T10:27:00Z
dc.date.available2023-04-27T10:27:00Z
dc.date.issued2023-04-12en
dc.description.abstractTrioecy systems are generally considered to be less stable and less widely distributed. Recently, a rare and mostly hermaphrodite (> 50%) trioecy system was detected in a single indigenous population of Corbicula fluminea. While hermaphrodite specimens are common in the invaded range, dioecy systems dominate C. fluminea populations in native regions, with trioecy populations being rare and transient in both ranges. To date, the stability of this trioecy system, as well as how environmental conditions effect sex allocation and reproductive activities remains unknown. To address this, the population sex ratio and brooding characteristics were analyzed through morphological and histological examination of C. fluminea specimens. Trioecy was sustained over the assessment period, with an approximate sex ratio of 1:1:6 (male:female:hermaphrodite). Greater water temperature significantly increased the population ratio in favor of males, while lower water temperatures were significantly associated shift toward females. Gametogenesis and brooding occurred throughout the year, but asynchronously. The incubation rate substantially increased between June and December, and had a significant and positive correlation with water temperature. Overall, these data suggest that a C. fluminea trioecy sexual system can be a stable phenomenon, and water temperature is both a driver of population sex ratio and reproductive activities.en
dc.description.sponsorshipNational Natural Science Foundation of China (31772832); National Key Research and Development Program of China (No. 2019YFD0900603); Hunan Provincial Modern Agricultural Research System (No. 2019-105); Irish Research Council (GOIPD/2022/861)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPi, J., Tang, Y., Coughlan, N. E., Liu, L., Wang, X., Liu, X., Xiang, J. and Li, D. (2023) 'Temperature drives reproductive activity in a rare trioecy population of Corbicula clams', Hydrobiologia. doi: 10.1007/s10750-023-05210-wen
dc.identifier.doi10.1007/s10750-023-05210-wen
dc.identifier.eissn1573-5117en
dc.identifier.issn0018-8158en
dc.identifier.journaltitleHydrobiologiaen
dc.identifier.urihttps://hdl.handle.net/10468/14409
dc.language.isoenen
dc.publisherSpringer Nature Switzerland AGen
dc.rights© 2023, the Authors, under exclusive licence to Springer Nature Switzerland AG. This is a post-peer-review, pre-copyedit version of a paper published as: Pi, J., Tang, Y., Coughlan, N. E., Liu, L., Wang, X., Liu, X., Xiang, J. and Li, D. (2023) 'Temperature drives reproductive activity in a rare trioecy population of Corbicula clams', Hydrobiologia, doi: 10.1007/s10750-023-05210-w. The final authenticated version is available online at: https://doi.org/10.1007/s10750-023-05210-wen
dc.subjectCorbicula fumineaen
dc.subjectSexual systemen
dc.subjectTrioecyen
dc.subjectHermaphroditeen
dc.subjectWater temperatureen
dc.subjectBroodingen
dc.titleTemperature drives reproductive activity in a rare trioecy population of Corbicula clamsen
dc.typeArticle (peer-reviewed)en
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