The many ways to delimit species: hairs, genes and surface chemistry

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dc.contributor University of Helsinki, Biosciences en
dc.contributor University of Helsinki, Biosciences en
dc.contributor University of Helsinki, Biosciences en
dc.contributor University of Helsinki, Biosciences en
dc.contributor University of Helsinki, Biosciences en
dc.contributor.author Seppä, Perttu
dc.contributor.author Helanterä, Heikki Oskari
dc.contributor.author Trontti, Kalevi
dc.contributor.author Punttila, Pekka
dc.contributor.author Chernenko, Anton
dc.contributor.author Martin, Stephen J.
dc.contributor.author Sundström, Liselotte
dc.date.accessioned 2011-12-14T11:10:00Z
dc.date.available 2011-12-14T11:10:00Z
dc.date.issued 2011
dc.identifier.citation Seppä , P , Helanterä , H O , Trontti , K , Punttila , P , Chernenko , A , Martin , S J & Sundström , L 2011 , ' The many ways to delimit species: hairs, genes and surface chemistry ' , Myrmecological news , vol. 15 , pp. 31-41 . < https://www.myrmecologicalnews.org/cms/index.php?option=com_content&view=category&id=480&Itemid=359 > en
dc.identifier.issn 1994-4136
dc.identifier.other PURE: 14512132
dc.identifier.other PURE UUID: 09367d09-51b6-450d-a4f7-abb40657d8a3
dc.identifier.other WOS: 000291127200007
dc.identifier.other Scopus: 79958220510
dc.identifier.other ORCID: /0000-0001-5393-6943/work/39554007
dc.identifier.other ORCID: /0000-0002-6176-8940/work/39204141
dc.identifier.uri http://hdl.handle.net/10138/28562
dc.description.abstract Species identification forms the basis for understanding the diversity of the living world, but it is also a prerequisite for understanding many evolutionary patterns and processes. The most promising approach for correctly delimiting and identifying species is to integrate many types of information in the same study. Our aim was to test how cuticular hydro- carbons, traditional morphometrics, genetic polymorphisms in nuclear markers (allozymes and DNA microsatellites) and DNA barcoding (partial mitochondrial COI gene) perform in delimiting species. As an example, we used two closely related Formica ants, F. fusca and F. lemani, sampled from a sympatric population in the northern part of their distribu- tion. Morphological characters vary and overlap in different parts of their distribution areas, but cuticular hydrocarbons include a strong taxonomic signal and our aim is to test the degree to which morphological and genetic data correspond to the chemical data. In the morphological analysis, species were best separated by the combined number of hairs on pro- notum and mesonotum, but individual workers overlapped in hair numbers, as previously noted by several authors. Nests of the two species were separated but not clustered according to species in a Principal Component Analysis made on nuclear genetic data. However, model-based Bayesian clustering resulted in perfect separation of the species and gave no indication of hybridization. Furthermore, F. lemani and F. fusca did not share any mitochondrial haplotypes, and the species were perfectly separated in a phylogenetic tree. We conclude that F. fusca and F. lemani are valid species that can be separated in our study area relatively well with all methods employed. However, the unusually small genetic differen- tiation in nuclear markers (FST = 0.12) shows that they are closely related, and occasional hybridization between F. fusca and F. lemani cannot be ruled out. en
dc.format.extent 11
dc.language.iso eng
dc.relation.ispartof Myrmecological news
dc.relation.uri https://www.myrmecologicalnews.org/cms/index.php?option=com_content&view=category&id=480&Itemid=359
dc.rights en
dc.subject 1181 Ecology, evolutionary biology en
dc.title The many ways to delimit species: hairs, genes and surface chemistry en
dc.type Article
dc.description.version Peer reviewed
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
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