scholarly journals Mapping stripe rust resistance genes by BSR-Seq: YrMM58 and YrHY1 on chromosome 2AS in Chinese wheat lines Mengmai 58 and Huaiyang 1 are Yr17

2018 ◽  
Vol 6 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Yong Wang ◽  
Huaizhi Zhang ◽  
Jingzhong Xie ◽  
Bingmin Guo ◽  
Yongxing Chen ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Resistance Genes ◽  
Rust Resistance ◽  
Stripe Rust Resistance ◽  
Wheat Lines ◽  
Chinese Wheat ◽  
Rust Resistance Genes

scholarly journals Seedling and Slow Rusting Resistance to Stripe Rust in Chinese Common Wheats

Plant Disease ◽  
2006 ◽  
Vol 90 (10) ◽  
pp. 1302-1312 ◽  
Author(s):  
Z. F. Li ◽  
X. C. Xia ◽  
X. C. Zhou ◽  
Y. C. Niu ◽  
Z. H. He ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Resistance Genes ◽  
Rust Resistance ◽  
Puccinia Striiformis ◽  
Gene Pyramiding ◽  
Stripe Rust Resistance ◽  
Slow Rusting ◽  
Cropping Seasons ◽  
Wheat Lines ◽  
Rust Resistance Genes

Identification of seedling and slow stripe rust resistance genes is important for gene pyramiding, gene deployment, and developing slow-rusting wheat cultivars to control the disease. A total of 98 Chinese lines were inoculated with 26 pathotypes of Puccinia striiformis f. sp. tritici for postulation of stripe rust resistance genes effective at the seedling stage. A total of 135 wheat lines were planted at two locations to characterize their slow rusting responses to stripe rust in the 2003-2004 and 2004-2005 cropping seasons. Genes Yr2, Yr3a, Yr4a, Yr6, Yr7, Yr9, Yr26, Yr27, and YrSD, either singly or in combinations, were postulated in 72 lines, whereas known resistance genes were not identified in the other 26 accessions. The resistance genes Yr9 and Yr26 were found in 42 and 19 accessions, respectively. Yr3a and Yr4a were detected in two lines, and four lines may contain Yr6. Three lines were postulated to possess YrSD, one carried Yr27, and one may possess Yr7. Thirty-three lines showed slow stripe rusting resistance at two locations in both seasons.

Characterization of Wheat Stripe Rust Resistance Genes in Shaanmai 139

2010 ◽  
Vol 36 (1) ◽  
pp. 109-114 ◽  
Author(s):  
Hong ZHANG ◽  
Zhi-Long REN ◽  
Yin-Gang HU ◽  
Chang-You WANG ◽  
Wan-Quan JI
Keyword(s):  
Stripe Rust ◽  
Resistance Genes ◽  
Rust Resistance ◽  
Stripe Rust Resistance ◽  
Wheat Stripe Rust ◽  
Rust Resistance Genes

Allelic analysis of stripe rust resistance genes on wheat chromosome 2BS

Genome ◽  
2008 ◽  
Vol 51 (11) ◽  
pp. 922-927 ◽  
Author(s):  
P. G. Luo ◽  
X. Y. Hu ◽  
Z. L. Ren ◽  
H. Y. Zhang ◽  
K. Shu ◽  
...  
Keyword(s):  
Ssr Markers ◽  
Stripe Rust ◽  
Resistance Genes ◽  
Rust Resistance ◽  
Dominant Gene ◽  
Wheat Chromosome ◽  
Stripe Rust Resistance ◽  
Resistance Response ◽  
Rust Resistance Genes ◽  
Yr Genes

Stripe rust, caused by Puccinia striiormis Westend f. sp. tritici, is one of the most important foliar diseases of wheat ( Triticum aestivum L.) worldwide. Stripe rust resistance genes Yr27, Yr31, YrSp, YrV23, and YrCN19 on chromosome 2BS confer resistance to some or all Chinese P. striiormis f. sp. tritici races CYR31, CYR32, SY11-4, and SY11-14 in the greenhouse. To screen microsatellite (SSR) markers linked with YrCN19, F1, F2, and F3 populations derived from cross Ch377/CN19 were screened with race CYR32 and 35 SSR primer pairs. Linkage analysis indicated that the single dominant gene YrCN19 in cultivar CN19 was linked with SSR markers Xgwm410, Xgwm374, Xwmc477, and Xgwm382 on chromosome 2BS with genetic distances of 0.3, 7.9, 12.3, and 21.2 cM, respectively. Crosses of CN19 with wheat lines carrying other genes on chromosome 2B showed that all were located at different loci. YrCN19 is thus different from the other reported Yr genes in chromosomal location and resistance response and was therefore named Yr41. Prospects and strategies of using Yr41 and other Yr genes in wheat improvement for stripe rust resistance are discussed.

scholarly journals Molecular Marker Based Design for Breeding Wheat Lines with Multiple Resistance and Superior Quality

Plant Disease ◽  
2020 ◽  
Vol 104 (10) ◽  
pp. 2658-2664
Author(s):  
Tao Liu ◽  
George Fedak ◽  
Lianquan Zhang ◽  
Rangrang Zhou ◽  
Dawn Chi ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Resistance Genes ◽  
High Resistance ◽  
Stem Rust ◽  
Rust Resistance ◽  
Stripe Rust Resistance ◽  
Multiple Resistance ◽  
Wheat Stem Rust ◽  
Wheat Production ◽  
Rust Resistance Genes

There has not been a major wheat stem rust epidemic worldwide since the 1970s, but the emergence of race TTKSK of Puccinia graminis f. sp. tritici in 1998 presented a great threat to the world wheat production. Single disease-resistance genes are usually effective for only several years before the pathogen changes genetically to overcome the resistance. Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) is one of the most common and persistent wheat diseases worldwide. The development of varieties with multiple resistance is the most economical and effective strategy for preventing stripe rust and stem rust, the two main rust diseases constraining wheat production. Plateau 448 has been widely used in the spring wheat growing region in northwest China, but it has become susceptible to stripe rust and is susceptible to TTKSK. To produce more durable resistance to race TTKSK as well as to stripe rust, four stem rust resistance genes (Sr33, Sr36, Sr-Cad, and Sr43) and three stripe rust resistance genes (Yr5, Yr18, and Yr26) were simultaneously introgressed into Plateau 448 to improve its stem rust (Ug99) and stripe rust resistance using a marker-assisted backcrossing strategy combined with phenotypic selection. We obtained 131 BC1F5 lines that pyramided two to four Ug99 resistance genes and one to two Pst resistance genes simultaneously. Thirteen of these lines were selected for their TTKSK resistance, and all of them exhibited near immunity or high resistance to TTKSK. Among the 131 pyramided lines, 95 showed high resistance to mixed Pst races. Nine lines exhibited not only high resistance to TTKSK and Pst but also better agronomic traits and high-molecular-weight glutenin subunit compositions than Plateau 448.

scholarly journals Genome-wide association mapping reveals potential novel loci controlling stripe rust resistance in a Chinese wheat landrace diversity panel from the southern autumn-sown spring wheat zone

2020 ◽  
Author(s):  
Yuqi Wang ◽  
Can Yu ◽  
Yukun Cheng ◽  
Fangjie Yao ◽  
Li Long ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Plant Resistance ◽  
Rust Resistance ◽  
Adult Plant Resistance ◽  
Stripe Rust Resistance ◽  
Adult Plant ◽  
Wheat Landrace ◽  
Landrace Diversity ◽  
Chinese Wheat ◽  
Rust Resistance Genes

Abstract Background: Stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici (Pst), is a serious foliar disease of wheat. Identification of novel stripe rust resistance genes and cultivation of resistant varieties are considered to be the most effective approaches to control this disease. In this study, we evaluated the infection type (IT), disease severity (DS) and area under the disease progress curve (AUDPC) of 143 Chinese wheat landrace accessions for stripe rust resistance. Assessments were undertaken in five environments at the adult-plant stage with Pst mixture races under field conditions, in addition, IT was assessed at the seedling stage with two prevalent Pst races (CYR32 and CYR34) under controlled greenhouse conditions.Results: Seventeen accessions showed stable high-level resistance to stripe rust across all environments under field tests, while four accessions showed resistance to the Pst races CYR32 and CYR34 at the seedling stage. Combining phenotypic data from the field and greenhouse trials with 6404 markers covering the whole genome, we detected 17 quantitative trait loci (QTL) on 11 chromosomes for IT associated with seedling resistance and 15 QTL on seven chromosomes for IT, final disease severity (FDS) or AUDPC associated with adult-plant resistance. Four stable QTL detected on four chromosomes, which explained 9.99%–23.30% of the phenotypic variation, were simultaneously associated with seedling and adult-plant resistance. Integrating a linkage map of stripe rust resistance in wheat, 27 QTL overlapped with previously reported genes or QTL, while four and one QTL conferring seedling and adult-plant resistance respectively were mapped distantly from previously reported stripe rust resistance genes or QTL and may be novel resistance loci.Conclusions: Our results provided an integrated view of stripe rust resistance resources in a Chinese wheat landrace diversity panel from the southern autumn-sown spring wheat zone. The identified resistant accessions and resistance loci will be useful in the ongoing effort to develop new wheat cultivars with strong resistance to stripe rust.

scholarly journals Genome-wide association mapping reveals potential novel loci controlling stripe rust resistance in a Chinese wheat landrace diversity panel from the southern autumn-sown spring wheat zone

2020 ◽  
Author(s):  
Yuqi Wang ◽  
Can Yu ◽  
Yukun Cheng ◽  
Fangjie Yao ◽  
Li Long ◽  
...  
Keyword(s):  
Stripe Rust ◽  
Plant Resistance ◽  
Rust Resistance ◽  
Adult Plant Resistance ◽  
Stripe Rust Resistance ◽  
Adult Plant ◽  
Wheat Landrace ◽  
Landrace Diversity ◽  
Chinese Wheat ◽  
Rust Resistance Genes

Abstract Background: Stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici (Pst), is a serious foliar disease of wheat. Identification of novel stripe rust resistance genes and cultivation of resistant varieties are considered to be the most effective approaches to control this disease. In this study, we evaluated the infection type (IT), disease severity (DS) and area under the disease progress curve (AUDPC) of 143 Chinese wheat landrace accessions for stripe rust resistance. Assessments were undertaken in five environments at the adult-plant stage with Pst mixture races under field conditions, in addition, IT was assessed at the seedling stage with two prevalent Pst races (CYR32 and CYR34) under controlled greenhouse conditions. Results: Seventeen accessions showed stable high-level resistance to stripe rust across all environments under field tests, while four accessions showed resistance to the Pst races CYR32 and CYR34 at the seedling stage. Combining phenotypic data from the field and greenhouse trials with 6404 markers covering the whole genome, we detected 17 quantitative trait loci (QTL) on 11 chromosomes for IT associated with seedling resistance and 15 QTL on seven chromosomes for IT, final disease severity (FDS) or AUDPC associated with adult-plant resistance. Four stable QTL detected on four chromosomes, which explained 9.99%–23.30% of the phenotypic variation, were simultaneously associated with seedling and adult-plant resistance. Integrating a linkage map of stripe rust resistance in wheat, 27 QTL overlapped with previously reported genes or QTL, while four and one QTL conferring seedling and adult-plant resistance respectively were mapped distantly from previously reported stripe rust resistance genes or QTL and may be novel resistance loci. Conclusions: Our results provided an integrated view of stripe rust resistance resources in a Chinese wheat landrace diversity panel from the southern autumn-sown spring wheat zone. The identified resistant accessions and resistance loci will be useful in the ongoing effort to develop new wheat cultivars with strong resistance to stripe rust.

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