• 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?

    Assessment of heterotic patterns of tropical low-nitrogen–tolerant maize (Zea mays L.) inbred lines using testcross performance, morphological traits and SNP markers

    Thumbnail
    View/Open
    Journal Article (589.5Kb)
    Date
    2020-12
    Author
    Ajala, S.O.
    Olayiwola, M.O.
    Job, A.O.
    Olaniyan, A.B.
    Gedil, M.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Breeding efforts in West and Central Africa (WCA) have focused on the development of Low‐N‐tolerant (LNT) maize inbreds and their classification into heterotic groups. This study was conducted to classify LNT maize lines into heterotic groups using testcross performance, morphological and SNP markers and to compare the consistency of groupings by the three methods. Thirty‐six LNT inbreds were crossed to two contrasting inbred testers to generate 72 testcrosses that were evaluated under low‐N conditions in Nigeria in 2014. Also, the 36 inbreds and the two testers were evaluated for per se performance under similar conditions as the testcrosses in 2014 and genotyped in 2015 using 1,123,196 SNP markers. Based on testcross performance, 33 of the 36 LNT inbreds were grouped by the two testers. Morphological characterization from per se performance and genetic relationship by SNP markers classified the inbreds into four groups that were inconsistent with their pedigree. Correlation analysis showed non‐concurrence of the three grouping methods. However, information from these groupings would assist in reducing the number of crosses to be made and evaluated.
    https://dx.doi.org/10.1111/pbr.12866
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7748
    IITA Authors ORCID
    Sam AJALAhttps://orcid.org/0000-0002-8955-408X
    Melaku Gedilhttps://orcid.org/0000-0002-6258-6014
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1111/pbr.12866
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Maize; Plant Breeding; Plant Production; Soil Fertility; Soil Health
    Agrovoc Terms
    Heterotis; Hybrids; Soil Fertility; Soil Deficiencies; Maize; Soil Analysis; West Africa; Central Africa; Dna; Genotypes
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Plant Breeding
    Collections
    • Journal and Journal Articles5286
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository