• Admin Login
    View Item 
    •   Home
    • Faculty of Science and Engineering
    • Faculty of Science and Engineering
    • View Item
    •   Home
    • Faculty of Science and Engineering
    • Faculty of Science and Engineering
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WIRECommunitiesTitleAuthorsIssue DateSubmit DateSubjectsTypesJournalDepartmentPublisherThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsTypesJournalDepartmentPublisher

    Administrators

    Admin Login

    Local Links

    AboutThe University LibraryOpen Access Publications PolicyDeposit LicenceCOREWIRE Copyright and Reuse Information

    Statistics

    Display statistics

    An investigation of self-incompatibility within the genus Restrepia

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Authors
    Millner, H. J.
    McCrea, A. R.
    Baldwin, T. C.
    Issue Date
    2015-03-13
    
    Metadata
    Show full item record
    Abstract
    • Premise of the study: The genus Restrepia (Orchidaceae) is indigenous to montane rain forests of Central and South America. Recently, as habitat has fragmented and wild populations dwindled, the chances for successful cross-pollination within the genus have been reduced. Since cultivated species of Restrepia have been vegetatively propagated, they remain genetically close to those in the wild, making ex situ collections of the genus useful model populations for investigating breeding systems. Restrepia are found in clade B of the Pleurothallidinae, the only clade in which self-incompatibility (SI) has not yet been confirmed. In the current study, private collections of Restrepia were used to study the operation of SI within the genus to assist future ex situ conservation of this and related genera. • Methods: A variety of self-pollination, intraspecific, and interspecific crosses were performed across the genus, and pollen tube growth was studied. • Key results: Individual species exhibited varying degrees of SI. Self-pollinations performed across 26 species in the genus produced few viable seeds, with the exception of R. aberrans. Viable “filled” seeds with embryos were shown to require an intraspecific cross. Primary hybrids between species produced >90% seeds with embryos that germinated well. • Conclusions: The type of SI operating within the genus was considered to be best explained by gametophytic self-incompatibility (GSI) with interspecific variation in its phenotypic expression. The implications of these findings are discussed in relation to SI in the Pleurothallidinae and conservation strategies for Restrepia and related genera.
    Citation
    An investigation of self-incompatibility within the genus Restrepia 2015, 102 (3):487 American Journal of Botany
    Journal
    American Journal of Botany
    URI
    http://hdl.handle.net/2436/603642
    DOI
    10.3732/ajb.1400555
    Additional Links
    http://www.amjbot.org/cgi/doi/10.3732/ajb.1400555
    Type
    Journal article
    Language
    en
    ISSN
    0002-9122
    1537-2197
    ae974a485f413a2113503eed53cd6c53
    10.3732/ajb.1400555
    Scopus Count
    Collections
    Faculty of Science and Engineering

    entitlement

     
    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.