Physical mapping of the Vrn-A1 and Fr1 genes on chromosome 5A of wheat using deletion lines

J. Sutka, G. Galiba, A. Vagujfalvi, B. S. Gill, J. W. Snape

Research output: Article

64 Citations (Scopus)

Abstract

Homozygous deletion lines of wheat for 5AL, generated in the variety 'Chinese Spring', were tested for flowering time without vernalization and for frost resistance after cold hardening. It was found that the Vrn-A1 gene for vernalization requirement mapped between breakpoints 0.68 and 0.78, whilst the frost resistance gene Fr1 was flanked by deletion breakpoints 0.67 and 0.68. This confirms previous evidence that these genes are linked but are not the pleiotropic effect of a single gene. A comparison between the physical and genetic maps for Vrn-A1 and Fr1 shows that the linear order is identical. These results indicate that cytogenetically based physical maps of Vrn-A1 and Fr1 loci, together with genetic maps, could be useful in the further study of genome synteny and in elaborating a gene cloning strategy.

Original languageEnglish
Pages (from-to)199-202
Number of pages4
JournalTheoretical and Applied Genetics
Volume99
Issue number1-2
DOIs
Publication statusPublished - jan. 1 1999

ASJC Scopus subject areas

  • Biotechnology
  • Agronomy and Crop Science
  • Genetics

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