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This article in TPG

  1. Vol. 2 No. 2, p. 134-140
    unlockOPEN ACCESS
    Received: Jan 18, 2009
    Accepted: July 10, 2009

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An Integrated Resource for Barley Linkage Map and Malting Quality QTL Alignment

  1. Péter Szűcs,
  2. Victoria C. Blake,
  3. Prasanna R. Bhat,
  4. Shiaoman Chao,
  5. Timothy J. Close,
  6. Alfonso Cuesta-Marcos,
  7. Gary J. Muehlbauer,
  8. Luke Ramsay,
  9. Robbie Waugh and
  10. Patrick M. Hayes 
  1. P. Szűcs, A. Cuesta-Marcos, and P.M. Hayes, Dep. of Crop and Soil Science, Oregon State Univ., Corvallis OR 97331; V.C. Blake, Dep. of Plant Sciences and Plant Pathology, Montana State Univ., Bozeman, MT 59717; P.R. Bhat and T.J. Close, Dep. of Botany and Plant Sciences, Univ. of California, Riverside, CA 92521; S. Chao, USDA-ARS, Fargo, ND 58105; G.J. Muehlbauer, Dep. of Agronomy and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55108; L. Ramsay and R. Waugh, Genetics Programme, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5NE, Scotland.


Barley (Hordeum vulgare L.) is an economically important model plant for genetics research. Barley is currently served by an increasingly comprehensive set of tools for genetic analysis that have recently been augmented by high-density genetic linkage maps built with gene-based single nucleotide polymorphisms (SNPs). These SNP-based maps need to be aligned with earlier generation maps, which were used for quantitative trait locus (QTL) detection, by integrating multiple types of markers into a single map. A 2383 locus linkage map was developed using the Oregon Wolfe Barley (OWB) Mapping Population to allow such alignments. The map is based on 1472 SNP, 722 DArT, and 189 prior markers which include morphological, simple sequence repeat (SSR), Restriction Fragment Length Polymorphism (RFLP), and sequence tagged site (STS) loci. This new OWB map forms, therefore, a useful bridge between high-density SNP-only maps and prior QTL reports. The application of this bridge concept is shown using malting-quality QTLs from multiple mapping populations, as reported in the literature. This is the first step toward developing a Barley QTL Community Curation workbook for all types of QTLs and maps, on the GrainGenes website. The OWB-related resources are available at OWB Data and GrainGenes Tools (OWB-DGGT) (http://wheat.pw.usda.gov/ggpages/maps/OWB/).

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Copyright © 2009. Copyright © 2009 Crop Science Society of America