Identification of carriers of Puccinia striiformis resistance genes in the population of recombinant inbred wheat lines
Malysheva A.A. Kokhmetova A.M. Kumarbayeva M.K. Zhanuzak K. Bolatbekova A.A. Keishilov Z.S. Gultyaeva E.I. Tsygankov V. Dutbayev Y.B. Dubekova S.B.
20 June 2022al-Farabi Kazakh State National University
International Journal of Biology and Chemistry
2022#15Issue 14 - 10 pp.
Stripe rust (yellow rust) caused by Puccinia striiformis (Pst) f. sp. tritici is one of the most dangerous diseases of wheat. Marker assisted selection (MAS) accelerates the selection of resistance gene donors in wheat recombinant inbred lines Almaly/Avocet (S) and to evaluate their response to Pst. Evaluation of seedling resistance to Pst allowed us to select 2 lines simultaneously resistant to races 111E231 and 7E63. Race 7E63 was avirulent to most samples, and 111E231 was highly virulent. All the studied lines demonstrated a resistant and moderately resistant reaction to the causative agent of yellow rust at the adult plant stage (R-MR). Molecular screening revealed the presence of a marker allele associated with the Yr18/Lr34 gene complex in 5 RIL. The frequency of resistant genotypes inheriting the Yr18 gene was 22.7%. The results can be used in MAS wheat breeding programs to increase resistance to yellow rust of wheat.
molecular markers , Puccinia striiformis , resistance genes , wheat , yellow rust
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Institute of Plant Biology and Biotechnology, Almaty, Kazakhstan
All-Russian Research Institute of Plant Protection, St. Petersburg, Russian Federation
LLP «Aktobe Agricultural Experimental Station», Aktobe region, Kazakhstan
Kazakh National Agrarian Research University, Almaty, Kazakhstan
LLP «Kazakh Research Institute of Agriculture and Plant growing», Almaty, Kazakhstan
Institute of Plant Biology and Biotechnology
All-Russian Research Institute of Plant Protection
LLP «Aktobe Agricultural Experimental Station»
Kazakh National Agrarian Research University
LLP «Kazakh Research Institute of Agriculture and Plant growing»
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