Species identification based on a semi-diagnostic marker : Evaluation of a simple conchological test for distinguishing blue mussels Mytilus edulis L. and M. trossulus Gould

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dc.contributor University of Helsinki, Zoology en
dc.contributor.author Khaitov, Vadim
dc.contributor.author Marchenko, Julia
dc.contributor.author Katolikova, Marina
dc.contributor.author Väinölä, Risto
dc.contributor.author Kingston, Sarah E.
dc.contributor.author Carlon, David B.
dc.contributor.author Gantsevich, Michael
dc.contributor.author Strelkov, Petr
dc.date.accessioned 2021-08-26T07:15:03Z
dc.date.available 2021-08-26T07:15:03Z
dc.date.issued 2021-07-23
dc.identifier.citation Khaitov , V , Marchenko , J , Katolikova , M , Väinölä , R , Kingston , S E , Carlon , D B , Gantsevich , M & Strelkov , P 2021 , ' Species identification based on a semi-diagnostic marker : Evaluation of a simple conchological test for distinguishing blue mussels Mytilus edulis L. and M. trossulus Gould ' , PLoS One , vol. 16 , no. 7 , 0249587 . https://doi.org/10.1371/journal.pone.0249587 en
dc.identifier.issn 1932-6203
dc.identifier.other PURE: 167899302
dc.identifier.other PURE UUID: 1cef1819-a814-420c-986c-dbe6262ea0e1
dc.identifier.other WOS: 000678128300032
dc.identifier.uri http://hdl.handle.net/10138/333642
dc.description.abstract Cryptic and hybridizing species may lack diagnostic taxonomic characters leaving researchers with semi-diagnostic ones. Identification based on such characters is probabilistic, the probability of correct identification depending on the species composition in a mixed population. Here we test the possibilities of applying a semi-diagnostic conchological character for distinguishing two cryptic species of blue mussels, Mytilus edulis and M. trossulus. These ecologically, stratigraphically and economically important molluscs co-occur and hybridize in many areas of the North Atlantic and the neighboring Arctic. Any cues for distinguishing them in sympatry without genotyping would save much research effort. Recently these species have been shown to statistically differ in the White Sea, where a simple character of the shell was used to distinguish two mussel morphotypes. In this paper, we analyzed the associations between morphotypes and species-specific genotypes based on an abundant material from the waters of the Kola Peninsula (White Sea, Barents Sea) and a more limited material from Norway, the Baltic Sea, Scotland and the Gulf of Maine. The performance of the "morphotype test" for species identification was formally evaluated using approaches from evidence-based medicine. Interspecific differences in the morphotype frequencies were ubiquitous and unidirectional, but their scale varied geographically (from 75% in the White Sea to 15% in the Baltic Sea). In addition, salinity-related variation of this character within M. edulis was revealed in the Arctic Barents Sea. For every studied region, we established relationships between the proportions of the morphotypes in the populations as well as between the proportions of the morphotypes in samples and the probabilities of mussels of different morphotypes being M. trossulus and M. edulis. We provide recommendations for the application of the morphotype test to mussels from unstudied contact zones and note that they may apply equally well to other taxa identified by semi-diagnostic traits. en
dc.format.extent 27
dc.language.iso eng
dc.relation.ispartof PLoS One
dc.rights en
dc.subject COMPARATIVE GROWTH en
dc.subject NORTH-ATLANTIC en
dc.subject HYBRIDIZATION en
dc.subject ALLOZYMES en
dc.subject GENOTYPE en
dc.subject HYBRIDS en
dc.subject WATERS en
dc.subject 1181 Ecology, evolutionary biology en
dc.title Species identification based on a semi-diagnostic marker : Evaluation of a simple conchological test for distinguishing blue mussels Mytilus edulis L. and M. trossulus Gould en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1371/journal.pone.0249587
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
dc.contributor.pbl

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