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  • Title: Development of cost-effective Hordeum chilense DNA markers: molecular aids for marker-assisted cereal breeding.
    Author: Hernández P, Dorado G, Ramírez MC, Laurie DA, Snape JW, Martín A.
    Journal: Hereditas; 2003; 138(1):54-8. PubMed ID: 12830985.
    Abstract:
    Hordeum chilense is a potential source of useful genes for wheat breeding. The use of this wild species to increase genetic variation in wheat will be greatly facilitated by marker-assisted introgression. In recent years, the search for the most suitable DNA marker system for tagging H. chilense genomic regions in a wheat background has lead to the development of RAPD and SCAR markers for this species. RAPDs represent an easy way of quickly generating suitable introgression markers, but their use is limited in heterogeneous wheat genetic backgrounds. SCARs are more specific assays, suitable for automatation or multiplexing. Direct sequencing of RAPD products is a cost-effective approach that reduces labour and costs for SCAR development. The use of SSR and STS primers originally developed for wheat and barley are additional sources of genetic markers. Practical applications of the different marker approaches for obtaining derived introgression products are described.
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