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Evolution of the G-matrix in life history traits in the common frog during a recent colonisation of an island system
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). (Arcum)
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2012 (English)In: Evolutionary Ecology, ISSN 0269-7653, E-ISSN 1573-8477, Vol. 26, no 4, 863-878 p.Article in journal (Refereed) Published
Abstract [en]

Studies of genetic correlations between traits that ostensibly channel the path of evolution away from the direction of natural selection require information on key aspects such as ancestral phenotypes, the duration of adaptive evolution, the direction of natural selection, and genetic covariances. In this study we provide such information in a frog population system. We studied adaptation in life history traits to pool drying in frog populations on islands of known age, which have been colonized from a mainland population. The island populations show strong local adaptation in development time and size. We found that the first eigenvector of the variance-covariance matrix (g (max)) had changed between ancestral mainland populations and newly established island populations. Interestingly, there was no divergence in g (max) among island populations that differed in their local adaptation in development time and size. Thus, a major change in the genetic covariance of life-history traits occurred in the colonization of the island system, but subsequent local adaptation in development time took place despite the constraints imposed by the genetic covariance structure.

Place, publisher, year, edition, pages
2012. Vol. 26, no 4, 863-878 p.
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:umu:diva-57140DOI: 10.1007/s10682-011-9542-2ISI: 000305218900007OAI: oai:DiVA.org:umu-57140DiVA: diva2:540345
Available from: 2012-07-09 Created: 2012-07-09 Last updated: 2017-12-07Bibliographically approved

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Johansson, FrankLind, Martin I.Ingvarsson, Pär K.Bokma, Folmer
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Department of Ecology and Environmental SciencesUmeå Plant Science Centre (UPSC)
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