, Volume 151, Issue 3, pp 421–429 | Cite as

Identification of QTLs for powdery mildew and scald resistance in barley

  • M. J. Y. Shtaya
  • T. C. Marcel
  • J. C. Sillero
  • R. E. Niks
  • D. Rubiales
Original Article


A population of 103 recombinant inbred lines (RILs, F9-derived lines) developed from the two-row spring barley cross L94 × ‘Vada’ was evaluated under field conditions for resistance against powdery mildew (Blumeria graminis f.sp. hordei) and scald (Rhynchosporium secalis). Apart from the major resistance gene mlo on chromosome 4 (4H), three QTLs (Rbgq1, Rbgq2 and Rbgq3) for resistance against powdery mildew were detected on chromosomes 2 (2H), 3 (3H), and 7 (5H), respectively. Rbgq1 and Rbgq2 have not been reported before, and did not map to a chromosome region where a major gene for powdery mildew had been reported. Four QTLs (Rrsq1, Rrsq2, Rrsq3 and Rrsq4) for resistance against scald were detected on chromosomes 3 (3H), 4 (4H) and 6 (6H). All four mapped to places where QTLs for scald resistance had been reported before in different populations.


Barley Blumeria graminis f.sp. hordei Partial resistance QTL mapping Rhynchosporium secalis 


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • M. J. Y. Shtaya
    • 1
    • 4
  • T. C. Marcel
    • 3
  • J. C. Sillero
    • 2
  • R. E. Niks
    • 3
  • D. Rubiales
    • 1
  1. 1.Institute of Sustainable AgricultureCSICCórdobaSpain
  2. 2.CIFAAlameda Del Obispo, IFAPACórdobaSpain
  3. 3.Laboratory of Plant BreedingWageningenThe Netherlands
  4. 4.Shtaya Faculty of AgricultureAn-Najah N. UniversityNablusPalestinian Territory

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