• Login
    View Item 
    •   Maryland Shared Open Access Repository Home
    • ScholarWorks@Towson
    • Towson University Graduate Theses and Dissertations
    • View Item
    •   Maryland Shared Open Access Repository Home
    • ScholarWorks@Towson
    • Towson University Graduate Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Molecular phylogeny of the goldenasters, subtribe Chrysopsidinae (Asteraceae: Astereae), based on nuclear ribosomal and chloroplast sequence data

    Thumbnail
    Files
    TSU2014Costa_redacted.pdf (2.823Mb)
    Permanent Link
    http://hdl.handle.net/11603/2063
    Collections
    • Towson University Graduate Theses and Dissertations
    Metadata
    Show full item record
    Author/Creator
    Costa, Clayton M.
    Date
    2014-09-12
    2014-05
    Type of Work
    application/pdf
    xii, 86 pages
    Text
    theses
    Department
    Towson University. Department of Biological Sciences
    Rights
    Copyright protected, all rights reserved.
    There are no restrictions on access to this document. An internet release form signed by the author to display this document online is on file with Towson University Special Collections and Archives.
    Abstract
    In this study, phylogenies were estimated based on molecular data from ETS and ITS, nuclear ribosomal DNA, and ycf1 and psbA-trnH, chloroplast DNA for all known genera of the Chrysopsidinae. The resulting phylogenies were used as the basis for addressing questions related to subtribal and generic monophyly, the relationship of the Central and South American genera Osbertia, Tomentaurum, and Noticastrum to North American genera, biogeography, morphological trait evolution and convergence among morphological features commonly used to delimit generic and species boundaries. Additionally, modifications to commonly used DNA extraction techniques allowed us to access DNA from relatively old herbarium specimens. Results from analyses of individual and combined datasets support the monophyly of the Chrysopsidinae and allowed some resolution of both the relationships among the genera of the Chrysopsidinae and the relationships among sections of the genus Heterotheca.


    Towson University
    8000 York Road
    Towson, Maryland 21252

    Website:
    www.towson.edu

    Contact Info:
    azukowski@towson.edu
    410-704-5318
    http://libraries.towson.edu/md-soar


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.

     

     

    My Account

    LoginRegister

    Browse

    This CollectionBy Issue DateTitlesAuthorsSubjectsType

    Statistics

    View Usage Statistics


    Towson University
    8000 York Road
    Towson, Maryland 21252

    Website:
    www.towson.edu

    Contact Info:
    azukowski@towson.edu
    410-704-5318
    http://libraries.towson.edu/md-soar


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.