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    Corolla Morphology Facilitates Both Autogamy and Bumblebee Pollination in Mimulus guttatus

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    KellyJK_IJoPS_165(6)1039.pdf (162.2Kb)
    Issue Date
    2004-11-01
    Author
    Arathi, H. S.
    Kelly, John K.
    Publisher
    University of Chicago Press
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    The showy corolla of Mimulus guttatus is generally considered an adaptation to attract pollinators. We use phenotypic manipulations to demonstrate that corolla morphology plays a critical mechanical role in both outcrossing and self‐fertilization. In the absence of pollinators, the lower portion of the corolla facilitates autogamy by retaining pollen released from the anthers. A substantial portion of self‐fertilization seems to occur late in the floral life span as the stigma contacts the corolla. When pollinators are present, the corolla facilitates outcrossing before, during, and after insect visitation. A large fraction of cross‐pollen is actually captured by the corolla and not by the stigma. This “indirect” pathway for pollen reception suggests that a large fraction of cross‐pollination in M. guttatus actually occurs long after a pollinator departs from a flower.
    URI
    http://hdl.handle.net/1808/16503
    DOI
    https://doi.org/10.1086/423876
    ISSN
    1058-5893
    Collections
    • Ecology & Evolutionary Biology Scholarly Works [1516]
    Citation
    Arathi, H. S.; Kelly, John K. (2007). "Corolla Morphology Facilitates Both Autogamy and Bumblebee Pollination in Mimulus guttatus." International Journal of Plant Science, 165(6):1039-1045. http://www.dx.doi.org/10.1086/423876

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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