Races of stripe rust (Puccinia striiformis f. sp. tritici) identified in Central Anatolia

Abstract

Wheat is one of the most important cereal groups, with large cultivation areas in Türkiye and around the world. Stripe rust (Puccinia striiformis f. sp. tritici) is one of the biotic factors limiting the yield and quality of wheat. It is significant to determine its race/races in a region in terms of breeding studies and suggestions on varieties of wheat for farmers. This study aims to detect the stripe rust races in Central Anatolia, Türkiye. Wheat leaves with stripe rust were collected in Ankara, Eskişehir, Kırkkale, Kırşehir, and Yozgat provinces in 2020. Urediniospores for each isolate were collected from leaves, and a set of differentials containing different resistance genes was used to determine the virulence of the isolates. Inoculation was done by spraying 7-days-old seedlings, and reactions were assessed. Results showed that isolates were effective on Yr2, Yr6, Yr7, Yr8, Yr9, Yr10, Yr17, Yr24, Yr25, and Yr32 resistance genes in the entire region. Along with this phenotyping study, further studies on these isolates will be done genotypically.