GpaXIltar originating from Solanum tarijense is a major resistance locus to Globodera pallida and is localised on chromosome 11 of potato

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Abstract

Resistance to Globodera pallida Rookmaker (Pa3), originating from wild species Solanum tarijense was identified by QTL analysis and can be largely ascribed to one major QTL. GpaXI tar l explained 81.3% of the phenotypic variance in the disease test. GpaXI tar l is mapped to the long arm of chromosome 11. Another minor QTL explained 5.3% of the phenotypic variance and mapped to the long arm of chromosome 9. Clones containing both QTL showed no lower cyst counts than clones with only GpaXI tar l . After Mendelising the phenotypic data, GpaXI tar l could be more precisely mapped near markers GP163 and FEN427, thus anchoring GpaXI tar l to a region with a known R-gene cluster containing virus and nematode resistance genes
Original languageEnglish
Pages (from-to)1477-1487
JournalTheoretical and Applied Genetics
Volume119
Issue number8
DOIs
Publication statusPublished - 2009

Keywords

  • broad-spectrum resistance
  • comigrating aflp markers
  • cyst-nematode
  • confers resistance
  • gene-cluster
  • tuberosum
  • linkage
  • tomato
  • virus
  • dna

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