Transfer of stripe rust resistance gene Yr26 to Turkish wheats using microsatellite markers

Yildirim, A
Karadag, Y
Sakin, MA
Gokmen, S
Kandemir, N
Akkaya, Mahinur
Yildirim, F
Stripe rust (yellow rust) is one of the most devastating diseases of wheat worldwide. The most effective control method of stripe rust is the use of resistance genes. A very effective stripe rust resistance gene, Yr26, originating from Triticum turgidum L., was transferred into two common wheat (Triticum aestivum L.) cultivars of Turkey through backcrossing using closely linked microsatellite markers. A 6VS/6AL translocation line (92R149) was used as the source of Yr26 because this gene was originally thought to be located in the short arm of chromosome 6V. Wheat cultivars, Gerek-79 and Gun-91, were used as the recurrent parents in backcrossing. Resistant backcross lines were selected using closely linked chromosome 1B microsatellite markers (Xgwm11 and Xgwm18). Resistant backcross lines were also screened with a 6VS specific SCAR marker (SCAR(1265)), and results reconfirmed that Yr26 was not carried on 6VS. Highly resistant BC4F3 plants of Gerek-79 and Gun-91 were produced and the existence of Yr26 was confirmed with the linked Xgwm11 and Xgwm18 microsatellite markers.


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Çelik, İlay; Akkaya, Mahinur S.; Department of Biotechnology (2007)
Yellow rust disease is one of the most important problems in wheat production. It causes substantial yield losses throughout the world. There are resistant and susceptible wheat varieties to various yellow rust pathotypes. In this thesis genes that are induced in wheat, in virulence and avirulence conditions upon yellow rust inoculations were investigated. Consequently, it was aimed to identify genes that may be playing critical roles in the disease resistance mechanism. The strategy was to construct subtra...
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Kansu, Çiğdem; Kaya, Zeki; Severcan, Feride; Department of Biology (2011)
Stem rust and Yellow rust diseases are the two major wheat fungal diseases causing considerable yield losses in Turkey and all around the world. There are studies which are carried out to identify and utilize resistance sources in order to obtain resistant lines of wheat. However, virulent pathotypes are continuously being important threats to wheat production and yield. For that reason, new approaches for rapid identification are needed. The aim of this study was to investigate and to understand the struct...
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Erdoğan, Sayıt Mahmut; Akkaya, Mahinur S.; Özçubukçu, Salih; Department of Biotechnology (2019)
Yellow rust is one of the most important wheat disease encountered in large parts of the world and in our country caused by a pathogen which is called as Puccinia striiformis f. sp. tritici (Pst). Rapid alterations in the pathogen virulency can make previously resistant varieties susceptible to the disease. Finding out common or species-specific genes, participated in the plant-pathogen interactions will provide an understanding of the biological mechanisms of the disease. Within the scope of this thesis fo...
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The importance of wheat yellow rust disease, caused by Puccinia striiformis f. sp. tritici (Pst), has increased substantially due to the emergence of aggressive new Pst races in the last couple of decades. In an era of escalating human populations and climate change, it is vital to understand the infection mechanism of Pst in order to develop better strategies to combat wheat yellow disease. The present study focuses on the identification of small secreted proteins (SSPs) and candidate-secreted effector pro...
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The stripe rust pathogen, Puccinia striiformis f. sp. tritici is the causative agent of the yellow (stripe) rust which is globally one of the most devastating and economically significant diseases in wheat. Although using fungicide can present a practical solution against the disease, an efficient, better and environmentally safer approach is needed to grow disease free wheat. To achieve this, better comprehension of the plant-pathogen interaction at the molecular and cellular level is required. The pathoge...
Citation Formats
A. Yildirim et al., “Transfer of stripe rust resistance gene Yr26 to Turkish wheats using microsatellite markers,” CEREAL RESEARCH COMMUNICATIONS, pp. 25–30, 2004, Accessed: 00, 2020. [Online]. Available: