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    Native oak chloroplasts reveal an ancient divide across Europe

    Access Status
    Fulltext not available
    Authors
    Ferris, C.
    Davy, A.
    Oliver, Richard
    Hewitt, G.
    Date
    1993
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    FERRIS C, DAVY AJ, OLIVER RP & HEWITT GM (1993) Native oak chloroplasts reveal an ancient divide across Europe. Molecular Ecology 2 337-344
    DOI
    10.1111/j.1365-294X.1993.tb00026.x
    Faculty
    Department of Environmental & Agriculture
    School of Agriculture and Environment
    Faculty of Science and Engineering
    Remarks

    A copy of this item may be available from Professor Richard Oliver

    Email: Richard.oliver@curtin.edu.au

    URI
    http://hdl.handle.net/20.500.11937/42806
    Collection
    • Curtin Research Publications
    Abstract

    Glacial refugia and postglacial migration are major factors responsible for the present patterns of genetic variation we see in natural populations. Traditionally postglacial history has been inferred from fossil data, but new molecular techniques permit historical information to be gleaned from present populations. The chloroplast tRNALeu1 intron contains regions which have been highly conserved over a billion years of chloroplast evolution. Surprisingly, in one of these regions which has remained invariant for all photosynthetic organisms so far studied, we have found intraspecific site polymorphism. This polymorphism occurs in two European oaks, Quercus robur and Q. petraea, indicating hybridisation and introgression between them. Two distinct chloroplast types occur and are distributed geographically as eastern and western forms suggesting that these oaks are each derived from at least two separate glacial refugia.

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