Lakehead University Library Logo
    • Login
    View Item 
    •   Knowledge Commons
    • Electronic Theses and Dissertations
    • Retrospective theses
    • View Item
    •   Knowledge Commons
    • Electronic Theses and Dissertations
    • Retrospective theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    quick search

    Browse

    All of Knowledge CommonsCommunities & CollectionsBy Issue DateAuthorTitleSubjectDisciplineAdvisorCommittee MemberThis CollectionBy Issue DateAuthorTitleSubjectDisciplineAdvisorCommittee Member

    My Account

    Login

    Statistics

    View Usage Statistics

    Pollen pool heterogeneity in jack pine (Pinus banksiana Lamb.) : a problem for estimating population outcrossing rate?

    Thumbnail

    View/Open

    FuY1990m-1b.pdf (2.147Mb)

    Date

    1990

    Author

    Fu, Yong-Bi

    Degree

    Master of Science

    Discipline

    Forestry and the Forest Environment

    Subject

    Forest genetics
    Jack pine
    Pollen
    Mixed-mating model
    Computer simulation

    Metadata

    Show full item record

    Abstract

    Pollen pool heterogeneity, which violates an assumption of the mixed-mating model, is one of the major problems facing population geneticists concerned with measuring plant mating systems. In the present study, isozyme markers were used to examine pollen pool heterogeneity in two natural populations of jack pine, Pinus banksiana Lamb.,in northwestern Ontario, Canada. Population multilocus estimates of outcrossing rate ranged from 0.829 to 0.952 and differed significantly between populations. Singletree outcrossing rates were found to be homogeneous among trees in both populations. Computer simulation studies shoved that the consanguineous mating pollen pool was a potentially important component of the pollen pool, capable of biasing population outcrossing estimates downward. In contrast, random heterogeneity of the pollen pool was found to have no effect on population estimates of outcrossing rates. Pollen pool heterogeneity existed in these two natural populations. However, it appeared to be random in nature and therefore did not affect the population outcrossing estimates.

    URI

    http://knowledgecommons.lakeheadu.ca/handle/2453/1681

    Collections

    • Retrospective theses

    Lakehead University Library
    Contact Us | Send Feedback

     


    Lakehead University Library
    Contact Us | Send Feedback