• Login
    View Item 
    •   Athenaeum Home
    • University of Georgia Theses and Dissertations
    • University of Georgia Theses and Dissertations
    • View Item
    •   Athenaeum Home
    • University of Georgia Theses and Dissertations
    • University of Georgia Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Characterization of simple sequence repeats (SSRS) markers, genetic diversity analysis in cultivated peanut (Arachis hypogaea L.). amd related leaf spot and spotted wilt responses in the field

    Thumbnail
    Date
    2009-08
    Author
    Li, Yan
    Metadata
    Show full item record
    Abstract
    In this research, as part of a study examining genotypic and phenotypic variation, disease reactions to Tomato spotted wilt virus (TSWV) and Cercospora arachidicola were evaluated in twenty-two genotypes from the U.S. and China in field trials at Tifton, GA in 2007-08. There was a continuous range of final incidence of spotted wilt from 20% to 80%; final percent defoliation by early leaf spot ranged from 10% to 97%. Disease reactions will be used in conjunction with genetic characterization of these genotypes and populations developed from crosses of selected genotypes in efforts to develop markers for resistance to Tomato spotted wilt virus and Cercospora arachidicola. The results of this study corroborated previous reports and confirmed that there is limited genetic diversity in the cultivated peanut. In general, the cluster in Cladogram tree followed our expectations where relationships between genotypes were known. Finally, based on genotypic and phenotypic information, two populations have been developed by crossing of Tifrunner X GT-C20 and SunOleic 97R X NC 94022.
    URI
    http://purl.galileo.usg.edu/uga_etd/li_yan_200908_ms
    http://hdl.handle.net/10724/25861
    Collections
    • University of Georgia Theses and Dissertations

    About Athenaeum | Contact Us | Send Feedback
     

     

    Browse

    All of AthenaeumCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    About Athenaeum | Contact Us | Send Feedback