How can we exploit functional genomics approaches for understanding the nature of plant defences? Barley as a case study

David B. Collinge*, Michael Krogh Jensen, Michael Foged Lyngkjær, Jesper Henrik Rung

*Corresponding author for this work

    Abstract

    The concept 'functional genomics' refers to the methods used for the functional characterisation of genomes. The methods utilised provide new opportunities for studying the nature and role of defence mechanisms in plants. Unlike Arabidopsis, poplar and rice, the full genomic sequence of barley is not available. In this case, the analysis of barley gene expression data plays a pivotal role for obtaining insight into the functional characterisation of individual gene products. Many genes are activated transcriptionally following attack by pathogens and these often contribute to the defence mechanisms which underlie disease resistance. The use of large-scale complementary DNA library constructions and genome-wide transcript profiles of plants exposed to biotic stress provide the data required to drive hypotheses concerning the function of newly identified genes. In this paper, we illustrate how publicly available gene expression data has proved valid for studies of plant defence responses; enabling a cost-effective workflow starting from isolated gene transcripts to elucidation of biological function upon biotic stress.

    Original languageEnglish
    Title of host publicationSustainable disease management in a European context
    Number of pages10
    PublisherSpringer
    Publication date2008
    Pages257-266
    ISBN (Print)9781402087790
    DOIs
    Publication statusPublished - 2008

    Keywords

    • Barley
    • Blumeria graminis f.sp. hordei
    • Functional genomics
    • Hordeum vulgare
    • NAC transcription factors
    • Pathogen
    • Plants

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