scholarly journals A new stripe rust resistance gene transferred from Thinopyrum intermedium to hexaploid wheat (Triticum aestivum)

2010 ◽  
Vol 90 (2) ◽  
pp. 57-63 ◽  
Author(s):  
Pei-Gao Luo ◽  
Xue-Yun Hu ◽  
Zhi-Jian Chang ◽  
Min Zhang ◽  
Huai-Qiong Zhang ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Resistance Gene ◽  
Common Wheat ◽  
Stripe Rust ◽  
Rust Resistance ◽  
Stripe Rust Resistance ◽  
Thinopyrum Intermedium ◽  
Wheat Stripe Rust ◽  
Intermediate Wheatgrass ◽  
Cryptic Translocation

Wheat stripe rust (Puccinia striiforis f. sp. tritici) races CYR31 and CYR32, prevalent in China, are virulent to many wheat stripe rust resistance genes (Yr genes). To expand the availability of effective resistance to CYR31 and CYR32, stripe rust resistance was transferred from intermediate wheatgrass (Thinopyrum intermedium) to common wheat (Triticum aestivum). The susceptible wheat cultivar CM107 was crossed with amphiploid TAI7047, derived from the wide cross Taiyuan768/Thinopyrum intermedium//76(64). Two wheat lines originating from the cross, YU24 and YU25, were resistant to CYR31 and CYR32. Pedigree analysis showed that the resistance to stripe rust in YU24 and YU25 originated from intermediate wheatgrass. Genetic analyses indicated that the resistance to stripe rust is controlled by a single dominant gene. Allelic tests determined that the resistance gene(s) in YU24 and YU25 are identical. The new gene has temporarily been designated as YrYU25. SSR and RAPD analyses showed that YrYU25 was introduced by cryptic translocation into common wheat.

scholarly journals Stripe rust resistance gene Yr34 (synonym Yr48) is located within a distal translocation of Triticum monococcum chromosome 5AmL into common wheat

2021 ◽  
Author(s):  
Shisheng Chen ◽  
Joshua Hegarty ◽  
Tao Shen ◽  
Lei Hua ◽  
Hongna Li ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Common Wheat ◽  
Stripe Rust ◽  
Rust Resistance ◽  
Triticum Monococcum ◽  
Rust Resistance Gene ◽  
Stripe Rust Resistance ◽  
Polyploid Wheat ◽  
Stripe Rust Resistance Gene ◽  
A Genome

AbstractKey messageThe stripe rust resistance geneYr34 was transferred to polyploid wheat chromosome 5AL from T. monococcumand has been used for over two centuries.Wheat stripe (or yellow) rust, caused by Puccinia striiformis f. sp. tritici (Pst), is currently among the most damaging fungal diseases of wheat worldwide. In this study, we report that the stripe rust resistance gene Yr34 (synonym Yr48) is located within a distal segment of the cultivated Triticum monococcum subsp. monococcum chromosome 5AmL translocated to chromosome 5AL in polyploid wheat. The diploid wheat species Triticum monococcum (genome AmAm) is closely related to T. urartu (donor of the A genome to polyploid wheat) and has good levels of resistance against the stripe rust pathogen. When present in hexaploid wheat, the T. monococcum Yr34 resistance gene confers a moderate level of resistance against virulent Pst races present in California and the virulent Chinese race CYR34. In a survey of 1,442 common wheat genotypes, we identified 5AmL translocations of fourteen different lengths in 17.5% of the accessions, with higher frequencies in Europe than in other continents. The old European wheat variety “Mediterranean” was identified as a putative source of this translocation, suggesting that Yr34 has been used for over 200 years. Finally, we designed diagnostic CAPS and sequenced-based markers that will be useful to accelerate the deployment of Yr34 in wheat breeding programs to improve resistance to this devastating pathogen.

scholarly journals Genome-Wide Association Mapping of Adult-Plant Resistance to Stripe Rust in Common Wheat (Triticum aestivum)

Plant Disease ◽  
2020 ◽  
Vol 104 (8) ◽  
pp. 2174-2180 ◽  
Author(s):  
Fangping Yang ◽  
Jindong Liu ◽  
Ying Guo ◽  
Zhonghu He ◽  
Awais Rasheed ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Stripe Rust ◽  
Resistance Genes ◽  
Rust Resistance ◽  
Genome Wide Association ◽  
Stripe Rust Resistance ◽  
Economic Losses ◽  
Genome Wide ◽  
A Genome

Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a globally devastating disease of common wheat (Triticum aestivum L.), resulting in substantial economic losses. To identify effective resistance genes, a genome-wide association study was conducted on 120 common wheat lines from different wheat-growing regions of China using the wheat 90K iSelect SNP array. Seventeen loci were identified, explaining 9.5 to 21.8% of the phenotypic variation. Most of these genes were detected in the A (seven) and B (seven) genomes, with only three in the D genome. Among them, 11 loci were colocated with known resistance genes or quantitative trait loci reported previously, whereas the other six are likely new resistance loci. Annotation of flanking sequences of significantly associated SNPs indicated the presence of three important candidate genes, including E3 ubiquitin-protein ligase, F-box repeat protein, and disease resistance RPP13-like protein. This study increased our knowledge in understanding the genetic architecture for stripe rust resistance and identified wheat varieties with multiple resistance alleles, which are useful for improvement of stripe rust resistance in breeding.

Mapping of Wheat Stripe Rust Resistance Gene YrZH84 with RGAP Markers and Its Application

2009 ◽  
Vol 35 (7) ◽  
pp. 1274-1281 ◽  
Author(s):  
Gui-Hong YIN ◽  
Jian-Wu WANG ◽  
Wei-E WEN ◽  
Zhong-Hu HE ◽  
Zai-Feng LI ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Stripe Rust ◽  
Rust Resistance ◽  
Rust Resistance Gene ◽  
Stripe Rust Resistance ◽  
Wheat Stripe Rust ◽  
Stripe Rust Resistance Gene

SSR and STS markers for wheat stripe rust resistance gene Yr26

Euphytica ◽  
2007 ◽  
Vol 159 (3) ◽  
pp. 359-366 ◽  
Author(s):  
Chunmei Wang ◽  
Yiping Zhang ◽  
Dejun Han ◽  
Zhensheng Kang ◽  
Guiping Li ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Stripe Rust ◽  
Rust Resistance ◽  
Rust Resistance Gene ◽  
Stripe Rust Resistance ◽  
Wheat Stripe Rust ◽  
Sts Markers ◽  
Stripe Rust Resistance Gene
Sign in / Sign up

Export Citation Format

Share Document