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dc.contributor.advisorConner, Jeffrey K.
dc.contributor.authorFergus, C. Emi
dc.description1 broadside ; ill.
dc.description.abstractTraits that are conserved through time and location are considered invariant characters. In the flowering world, these floral traits are useful in classifying plants. Little is known about the mechanisms that maintain these invariant traits. There are three non-mutually exclusive hypotheses to explain restricted variability of traits: 1) Little genetic variation; 2) Stabilizing selection; 3) Evolutionary constraints taking the form of physical, chemical, or developmental constraints. In the plant Raphanus raphanistrum (wild radish) there is a high correlation between filament height and corolla tube length. The position of the anther is referred to as anther exsertion. Anther exsertion can be calculated from the differences in filament height and corolla tube length. In natural populations, anther exsertion is zero with the anthers positioned at the opening of the corolla tube.en
dc.description.sponsorshipMichigan State University. Dept. of Botany and Plant Pathology
dc.description.sponsorshipKalamazoo College. Department of Biology. Diebold Symposium, 2002
dc.description.tableofcontentsIntroduction -- Materials and methods -- Results -- Discussion -- Acknowledgments -- Bibliography
dc.publisherKalamazoo College
dc.titleStudying evolutionary constraints on an invariant floral trait in Wild Radish Raphanus raphanistrumen

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  • Diebold Symposium Posters and Schedules [479]
    Poster and oral presentations by senior biology majors that include the results of their Senior Integrated Projects (SIPs) at the Diebold Symposium. Abstracts are generally available to the public, but PDF files are available only to current Kalamazoo College students, faculty, and staff.

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