Molecular Breeding

, Volume 24, Issue 2, pp 191–199

“Blind” mapping of genic DNA sequence polymorphisms in Lolium perenne L. by high resolution melting curve analysis

  • Bruno Studer
  • Louise Bach Jensen
  • Alice Fiil
  • Torben Asp
Short Communication

DOI: 10.1007/s11032-009-9291-x

Cite this article as:
Studer, B., Jensen, L.B., Fiil, A. et al. Mol Breeding (2009) 24: 191. doi:10.1007/s11032-009-9291-x

Abstract

High resolution melting curve analysis (HRM) measures dissociation of double stranded DNA of a PCR product amplified in the presence of a saturating fluorescence dye. Recently, HRM proved successful to genotype DNA sequence polymorphisms such as SSRs and SNPs based on the shape of the melting curves. In this study, HRM was used for simultaneous screening and genotyping of genic DNA sequence polymorphisms identified in the Lolium perenne F2 mapping population VrnA. Melting profiles of PCR products amplified from previously published gene loci and from a novel gene putatively involved in vernalization response successfully discriminated genotypes in absence of allelic sequence information, and allowed to determine allele segregation in VrnA. Here we introduce the concept of “blind” mapping based on HRM as a powerful, fast and cheap method to map any DNA sequence polymorphisms without prior knowledge of allelic sequences in the key grassland species perennial ryegrass (Lolium perenne L.).

Keywords

“Blind” mapping High resolution melting curve analysis (HRM) Linkage mapping Lolium perenne

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Bruno Studer
    • 1
  • Louise Bach Jensen
    • 1
  • Alice Fiil
    • 1
  • Torben Asp
    • 1
  1. 1.Department of Genetics and Biotechnology, Faculty of Agricultural Sciences, Research Centre FlakkebjergAarhus UniversitySlagelseDenmark

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