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Cereal Research Communications

, Volume 37, Issue 3, pp 431–440 | Cite as

Identification of the Lr34/Yr18 rust resistance gene region in a Hungarian wheat breeding programme

  • Z. L. Wang
  • L. Láng
  • A. Uhrin
  • O. Veisz
  • S. D. Liu
  • G. VidaEmail author
Pathology

Abstract

The presence and frequency of the resistance gene complex Lr34/Yr18 was investigated in the wheat breeding programme of the Agricultural Research Institute, Martonvásár, Hungary. A total of 226 wheat cultivars and advanced lines from Hungary and other countries were tested with an STS marker, csLV34, to understand the distribution of the Lr34/Yr18 resistance gene complex. A 150-bp PCR fragment was amplified in 64 wheat cultivars and lines with the resistance genes Lr34/Yr18, while a 229-bp fragment was detected in 162 genotypes without Lr34/Yr18. The genotypes with Lr34/Yr18 accounted for 28.3% of the wheat cultivars and advanced lines tested. Among the 128 varieties and breeding lines of Martonvásár origin tested, 34 carried the Lr34/Yr18 genes, with a frequency of 26.6%. The frequency of these genes was 30.6% in genotypes of other origin. The STS marker csLV34 could be used as an effective tool for the marker-assisted selection of Lr34/Yr18 genes in breeding wheat cultivars with durable rust resistance.

Keywords

Triticum aestivum L. leaf rust marker-assisted selection Lr34/Yr18 

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Copyright information

© Akadémiai Kiadó, Budapest 2009

Authors and Affiliations

  • Z. L. Wang
    • 1
  • L. Láng
    • 2
  • A. Uhrin
    • 2
  • O. Veisz
    • 2
  • S. D. Liu
    • 1
  • G. Vida
    • 2
    Email author
  1. 1.College of AgronomyNorthwest A&F UniversityYangling, ShaanxiChina
  2. 2.Agricultural Research Institute of the Hungarian Academy of SciencesMartonvásárHungary

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