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dc.contributor.authorWeiner, A.K.M.
dc.contributor.authorWeinkauf, M.F.G.
dc.contributor.authorKurasawa, A.
dc.contributor.authorDarling, K.F.
dc.contributor.authorKucera, M.
dc.date.accessioned2014-12-01T13:01:29Z
dc.date.available2014-12-01T13:01:29Z
dc.date.issued2015-01
dc.identifier.citationWeiner , A K M , Weinkauf , M F G , Kurasawa , A , Darling , K F & Kucera , M 2015 , ' Genetic and morphometric evidence for parallel evolution of the Globigerinella calida morphotype ' , Marine Micropaleontology , vol. 114 , pp. 19-35 . https://doi.org/10.1016/j.marmicro.2014.10.003en
dc.identifier.issn0377-8398
dc.identifier.otherPURE: 158739450
dc.identifier.otherPURE UUID: eecca8d5-c86e-4654-a9c8-6d407f3eda74
dc.identifier.otherScopus: 84909979345
dc.identifier.otherWOS: 000350185100002
dc.identifier.urihttps://hdl.handle.net/10023/5846
dc.descriptionThe work was financially supported by the Deutsche Forschungsgemeinschaft (grant KU 2259/19) and the Natural Environment Research Council of the UK (grants NER/J/S/2000/00860 and NE/D009707/1).en
dc.description.abstractMolecular genetic investigations of the highly abundant extant planktonic foraminifera plexus Globigerinella siphonifera/. Globigerinella calida have recently shown this group to be the genetically most diverse one within planktonic foraminifera, separating it into 12 distinct genetic types belonging to three main genetic lineages. Independently, several morphological or physiological variants have been described within the group, but the correlation between the high genetic diversity and the phenotypic variability remains unclear. In this study, we combine genetic data with morphometric analyses of shell shape and porosity of genotyped individuals of the different genetic lineages. Our morphometric measurements suggest a differentiation of three morphotypes within the plexus, two of which possess the elongated chambers described as a typical trait of G. calida. These two morphotypes with elongated chambers are associated with two distinct genetic lineages. The G. calida morphology therefore appears to have evolved twice in parallel. Unexpectedly, we show that the two morphotypes with elongated chambers can be separated from each other by characters seen in the lateral view of their shells. This implies that the taxonomy of the extant members of the genus Globigerinella should be revised. A comparison with the original descriptions and type specimens of members of the genus shows that two genetic types of one major lineage correspond to G. calida. The second group with elongated chambers is associated with a recently diverged genetic type and we propose to reinstate the name Globigerinella radians for this distinct form. The remaining nine of the 12 genetic types correspond to the G. siphonifera morphology, and in the absence of evidence for morphological differentiation, they form a paraphyletic morpho-taxon. Our results highlight the prevalence of parallelism in the evolution of shell morphology in planktonic foraminifera even at the lowest level of relatedness represented by genetic types.
dc.format.extent17
dc.language.isoeng
dc.relation.ispartofMarine Micropaleontologyen
dc.rights© 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en
dc.subjectQH426 Geneticsen
dc.subjectG Geography (General)en
dc.subjectNDASen
dc.subject.lccQH426en
dc.subject.lccG1en
dc.titleGenetic and morphometric evidence for parallel evolution of the Globigerinella calida morphotypeen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Geography and Geosciencesen
dc.identifier.doihttps://doi.org/10.1016/j.marmicro.2014.10.003
dc.description.statusPeer revieweden


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