• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Analysis of genetic diversity in accessions of Irvingia gabonensis (AubryLecomte ex O Rorke) Baill

    Thumbnail
    Date
    2006
    Author
    Ude, G.N.
    Dimkpa, C.O.
    Anegbeh, P.O.
    Shaibu, A.A.
    Tenkouano, A.
    Pillay, M.
    Tchoundjeu, Z.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    Amplified fragment length polymorphism (AFLP) was used to assess genetic diversity and relationships among 15 accessions of Irvingia gabonensis collected from Cameroun, Gabon, and Nigeria. Twelve AFLP+3 primers produced 384 polymorphic fragments. Average genetic distance (AGD) between the 15 accessions was 58.7% (32-88%). AGD and range of genetic distance among accessions from Cameroun, Nigeria and Gabon were 62% (53-76%), 52% (32.3 – 84.8%) and 50% (45- 53%), respectively, indicating more genetic diversity in Cameroun than Nigeria and Gabon. The unweighted pair-group method of the arithmetic average (UPGMA) and principal coordinate analysis (PCO) showed a clear distinction between the Gabon and Nigeria accessions into two separate clusters, with accessions from Cameroun overlapping them. Principal coordinate analysis (PCO) indicated a closer relationship between accessions from Cameroun and Gabon. In general the Cameroun germplasm appears to be a bridge between the genetically isolated Nigeria and Gabon accessions. This overlap of Gabon and Nigerian accessions by the accessions from Cameroun may be an indication that Cameroun is the center of diversity of I. gabonensis and also the primary source of original materials grown in the other countries. More collection in Cameroun is necessary to ensure the optimum collection and preservation of the existing genetic diversity in I. gabonensis.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3036
    IITA Subjects
    Pests Of Plants; Genetic Improvement; Disease Control; Plant Diseases; Handling, Transport, Storage And Protection Of Agricultural Products; Banana; Farm Management; Food Security; Plant Breeding; Plant Genetic Resources; Plant Production
    Agrovoc Terms
    Irvingia Gabonensis; Accession; Amplified Fragment Length Polymorphism; Genetic Variation; Germplasm
    Regions
    Acp; Africa; North America; West Africa; East Africa; Central Africa
    Countries
    United States; Nigeria; Uganda; Cameroon
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository