Analysis of adaptive ribosomal gene diversity in wild plant populations from contrasting climatic environments

Frances M. Shapter, Timothy L. Fitzgerald, Daniel L E Waters, Stuart McDonald, Ian H. Chivers, Eviatar Nevo, Robert J. Henry

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    Plant populations may contain variation that reflects adaptation to local environmental conditions. Clues to adaptive evolution of plants may be found in the genomes of species growing in diverse environments or across steep environmental gradients, and under stress. We have examined populations of wild relatives of barley and rice across diverse environmental gradients. Greater diversity, in a nuclear biotic stress defense gene and in chloroplast genes, was found in the more stressed, hotter and dryer environments. This may reflect the greater heterogeneity of these environments. Adaptation of plants to different abiotic stresses (temperatures and levels of water availability) may also require significant adaptation to the different biotic (pest and disease) pressures in these environments.

    Original languageEnglish
    Pages (from-to)602-604
    Number of pages3
    JournalPlant Signaling and Behavior
    Volume7
    Issue number6
    DOIs
    Publication statusPublished - Jun 2012

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