Mapping physiological traits in barley

R. P. Ellis, B. P. Forster, R. Waugh, N. Bonar, L. L. Handley, D. Robinson, D. C. Gordon, W. Powell

    Research output: Contribution to journalArticlepeer-review

    51 Citations (Scopus)

    Abstract

    Amplified fragment length polymorphisms (AFLPs) offer a reproducible, multiplex DNA assay by which to genotype mapping populations. We have evaluated physiological traits in barley seedlings grown in an hydroponic system and given a salt treatment. Multiple regression was used to show associations between AFLPs and quantitative traits. Effects at different loci were detected in stress treatments in comparison to the control implying that either novel gene action was induced by salt stress or that normal activity was reduced to a low level where alternate gene action is revealed. The QTLs occurred on all chromosomes but there appeared to be clusters of loci on chromosomes 1 (7H), 4 (4H), 5 (1H) and 6 (6H). The significance of our results is discussed in the context of studies to explore the barley genome and the application of the results of these genetical analyses to barley breeding.

    Original languageEnglish
    Pages (from-to)149-157
    Number of pages9
    JournalNew Phytologist
    Volume137
    Issue number1
    DOIs
    Publication statusPublished - Sep 1997

    Keywords

    • AFLPs
    • Gene mapping
    • Hordeum vulgare (barley)
    • Physiological traits
    • Salt tolerance

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