Molecular mapping of powdery mildew resistance gene Eg-3 in cultivated oat (Avena sativa L. cv. Rollo)

Volker Mohler, Friedrich J. Zeller, Sai L.K. Hsam

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Powdery mildew is a prevalent fungal disease affecting oat (Avena sativa L.) production in Europe. Common oat cultivar Rollo was previously shown to carry the powdery mildew resistance gene Eg-3 in common with cultivar Mostyn. The resistance gene was mapped with restriction fragment length polymorphism (RFLP) markers from Triticeae group-1 chromosomes using a population of F 3 lines from a cross between A. byzantina cv. Kanota and A. sativa cv. Rollo. This comparative mapping approach positioned Eg-3 between cDNA-RFLP marker loci cmwg706 and cmwg733. Since both marker loci were derived from the long arm of barley chromosome 1H, the subchromosomal location of Eg-3 was assumed to be on the long arm of oat chromosome 17. Amplified fragment length polymorphism (AFLP) marker technology featured as an efficient means for obtaining markers closely linked to Eg-3.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalJournal of Applied Genetics
Volume53
Issue number2
DOIs
StatePublished - May 2012

Keywords

  • Avena sativa
  • Blumeria graminis avenae
  • Genetic mapping
  • Monosomic analysis
  • Oat

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