Application of large-scale sequencing to marker discovery in plants

Robert J. Henry, Mark Edwards, Daniel L.E. Waters, S. Gopala Krishnan, Peter Bundock, Timothy R. Sexton, Ardashir K. Masouleh, Catherine J. Nock, Julie Pattemore

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)
    13 Downloads (Pure)

    Abstract

    Advances in DNA sequencing provide tools for efficient large-scale discovery of markers for use in plants. Discovery options include large-scale amplicon sequencing, transcriptome sequencing, gene-enriched genome sequencing and whole genome sequencing. Examples of each of these approaches and their potential to generate molecular markers for specific applications have been described. Sequencing the whole genome of parents identifies all the polymorphisms available for analysis in their progeny. Sequencing PCR amplicons of sets of candidate genes from DNA bulks can be used to define the available variation in these genes that might be exploited in a population or germplasm collection. Sequencing of the transcriptomes of genotypes varying for the trait of interest may identify genes with patterns of expression that could explain the phenotypic variation. Sequencing genomic DNA enriched for genes by hybridization with probes for all or some of the known genes simplifies sequencing and analysis of differences in gene sequences between large numbers of genotypes and genes especially when working with complex genomes. Examples of application of the above-mentioned techniques have been described.

    Original languageEnglish
    Pages (from-to)829-841
    Number of pages13
    JournalJournal of Biosciences
    Volume37
    Issue number5
    DOIs
    Publication statusPublished - Nov 2012

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