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wheat Stripe rust

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https://www.readbyqxmd.com/read/29666883/snp-based-pool-genotyping-and-haplotype-analysis-accelerate-fine-mapping-of-the-wheat-genomic-region-containing-stripe-rust-resistance-gene-yr26
#1
Jianhui Wu, Qingdong Zeng, Qilin Wang, Shengjie Liu, Shizhou Yu, Jingmei Mu, Shuo Huang, Hanan Sela, Assaf Distelfeld, Lili Huang, Dejun Han, Zhensheng Kang
NGS-assisted super pooling emerging as powerful tool to accelerate gene mapping and haplotype association analysis within target region uncovering specific linkage SNPs or alleles for marker-assisted gene pyramiding. Conventional gene mapping methods to identify genes associated with important agronomic traits require significant amounts of financial support and time. Here, a single nucleotide polymorphism (SNP)-based mapping approach, RNA-Seq and SNP array assisted super pooling analysis, was used for rapid mining of a candidate genomic region for stripe rust resistance gene Yr26 that has been widely used in wheat breeding programs in China...
April 17, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29589041/genome-wide-association-mapping-for-resistance-to-leaf-rust-stripe-rust-and-tan-spot-in-wheat-reveals-potential-candidate-genes
#2
Philomin Juliana, Ravi P Singh, Pawan K Singh, Jesse A Poland, Gary C Bergstrom, Julio Huerta-Espino, Sridhar Bhavani, Jose Crossa, Mark E Sorrells
Genome-wide association mapping in conjunction with population sequencing map and Ensembl plants was used to identify markers/candidate genes linked to leaf rust, stripe rust and tan spot resistance in wheat. Leaf rust (LR), stripe rust (YR) and tan spot (TS) are some of the important foliar diseases in wheat (Triticum aestivum L.). To identify candidate resistance genes for these diseases in CIMMYT's (International Maize and Wheat Improvement Center) International bread wheat screening nurseries, we used genome-wide association studies (GWAS) in conjunction with information from the population sequencing map and Ensembl plants...
March 27, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29560515/characterisation-and-mapping-of-adult-plant-stripe-rust-resistance-in-wheat-accession-aus27284
#3
Vallence Nsabiyera, Harbans S Bariana, Naeela Qureshi, Debbie Wong, Matthew J Hayden, Urmil K Bansal
A new adult plant stripe rust resistance gene, Yr80, was identified in a common wheat landrace Aus27284. Linked markers were developed and validated for their utility in marker-assisted selection. Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is among the most important constraints to global wheat production. The identification and characterisation of new sources of host plant resistance enrich the gene pool and underpin deployment of resistance gene pyramids in new cultivars. Aus27284 exhibited resistance at the adult plant stage against predominant Pst pathotypes and was crossed with a susceptible genotype Avocet S...
March 20, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29541084/transcriptomic-analysis-reveal-the-molecular-mechanisms-of-wheat-higher-temperature-seedling-plant-resistance-to-puccinia-striiformis-f-sp-tritici
#4
Fei Tao, Junjuan Wang, Zhongfeng Guo, Jingjing Hu, Xiangming Xu, Jiarong Yang, Xianming Chen, Xiaoping Hu
Stripe rust, caused by Puccinia striiformis f. sp. tritici ( Pst ), is a destructive disease of wheat worldwide. The disease is preferably controlled by growing resistant cultivars. Wheat cultivar Xiaoyan 6 (XY 6) has been resistant to stripe rust since its release. In the previous studies, XY 6 was found to have higher-temperature seedling-plant (HTSP) resistance. However, the molecular mechanisms of HTSP resistance were not clear. To identify differentially expressed genes (DEGs) involved in HTSP resistance, we sequenced 30 cDNA libraries constructed from XY 6 seedlings exposed to several temperature treatments...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29527215/-tamapk4-acts-as-a-positive-regulator-in-defense-of-wheat-stripe-rust-infection
#5
Bing Wang, Na Song, Qiong Zhang, Ning Wang, Zhensheng Kang
Highly conserved mitogen-activated protein kinase (MAPK) cascades regulate numerous plant processes, including hormonal responses, stress, and innate immunity. In this research, TaMAPK4 was predicted to be a target of tae-miR164. We verified the binding and suppression of TaMAPK4 by co-expression in Nicotiana benthamiana . Moreover, we found TaMAPK4 was localized in the cytoplasm and nucleus using transient expression analyses. TaMAPK4 transcripts increased following salicylic acid (SA) treatment and when host plants were infected with an avirulent race of the stripe-rust pathogen...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29505636/characterizing-and-validating-stripe-rust-resistance-loci-in-us-pacific-northwest-winter-wheat-accessions-triticum-aestivum-l-by-genome-wide-association-and-linkage-mapping
#6
Weizhen Liu, Yukiko Naruoka, Kaitlin Miller, Kimberly A Garland-Campbell, Arron H Carter
Stripe rust resistance is a critical need for wheat cultivars in the US Pacific Northwest (PNW). Our previous genome-wide association study (GWAS) for stripe rust resistance in a set of PNW winter wheat accessions (Panel-2) identified multiple marker-trait associations (MTAs) for both all-stage and field resistance. In this study, we conducted additional GWAS using a different set of PNW winter wheat accessions (Panel-1) that contained recently bred soft white winter wheat breeding lines and cultivars. A total of 12 all-stage resistance MTAs and eight field resistance MTAs were identified...
March 2018: Plant Genome
https://www.readbyqxmd.com/read/29476226/remapping-of-the-stripe-rust-resistance-gene-yr10-in-common-wheat
#7
Cuiling Yuan, Jingzheng Wu, Baiqiang Yan, Qunqun Hao, Chaozhong Zhang, Bo Lyu, Fei Ni, Allan Caplan, Jiajie Wu, Daolin Fu
Yr10 is an important gene to control wheat stripe rust, and the search for Yr10 needs to be continued. Wheat stripe rust or yellow rust is a devastating fungal disease caused by Puccinia striiformis f. sp. tritici (Pst). Host disease resistance offers a primary source for controlling wheat stripe rust. The stripe rust resistance gene Yr10 confers the race-specific resistance to most tested Pst races in China including CYR29. Early studies proposed that Yr10 was a nucleotide-binding site, leucine-rich repeat gene archived as GenBank accession AF149112 (hereafter designated the Yr10 candidate gene or Yr10CG )...
February 23, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29472940/inheritance-and-linkage-of-virulence-genes-in-chinese-predominant-race-cyr32-of-the-wheat-stripe-rust-pathogen-puccinia-striiformis-f-sp-tritici
#8
Long Wang, Dan Zheng, Shuxia Zuo, Xianming Chen, Hua Zhuang, Lili Huang, Zhensheng Kang, Jie Zhao
Puccinia striiformis f.sp. tritici ( Pst ) is the causal agent of stripe (yellow) rust on wheat. It seriously threatens wheat production worldwide. The obligate biotrophic fungus is highly capable of producing new virulent races that can overcome resistance. Studying the inheritance of Pst virulence using the classical genetic approach was not possible until the recent discovery of its sexual stage on barberry plants. In the present study, 127 progeny isolates were obtained by selfing a representative Chinese Yellow Rust (CYR) race, CYR32, on Berberis aggregate ...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29470932/precise-identification-of-wheat-i-thinopyrum-intermedium-i-translocation-chromosomes-carrying-resistance-to-wheat-stripe-rust-in-line-z4-and-its-derived-progenies
#9
Tao Lang, Shixiao La, Bin Li, Zhihui Yu, Qiheng Chen, Jianbo Li, Ennian Yang, Guangrong Li, Zujun Yang
2 The wheat- Thinopyrum intermedium derived line Z4 has displayed novel and effective stripe rust resistance for over 40 years. This study aimed to precisely identify the chromosome constitution of Z4 and determine the stripe rust resistance contribution using multicolor fluorescent in situ hybridization (FISH) and molecular marker analysis. The results indicated that the Z4 line (2n=44) contained two pairs of non-Robertsonian translocations without the 3A chromosomes of wheat. FISH karyotypes of F3 progenies derived from crosses between Z4 and MY11 indicated that the transmission of the translocated chromosomes appeared normal and the number of wheat chromosomes 3A and 3D frequently varied...
February 22, 2018: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/29463659/a-near-complete-haplotype-phased-genome-of-the-dikaryotic-wheat-stripe-rust-fungus-puccinia-striiformis-f-sp-tritici-reveals-high-interhaplotype-diversity
#10
Benjamin Schwessinger, Jana Sperschneider, William S Cuddy, Diana P Garnica, Marisa E Miller, Jennifer M Taylor, Peter N Dodds, Melania Figueroa, Robert F Park, John P Rathjen
A long-standing biological question is how evolution has shaped the genomic architecture of dikaryotic fungi. To answer this, high-quality genomic resources that enable haplotype comparisons are essential. Short-read genome assemblies for dikaryotic fungi are highly fragmented and lack haplotype-specific information due to the high heterozygosity and repeat content of these genomes. Here, we present a diploid-aware assembly of the wheat stripe rust fungus Puccinia striiformis f. sp. tritici based on long reads using the FALCON-Unzip assembler...
February 20, 2018: MBio
https://www.readbyqxmd.com/read/29449594/rapid-identification-of-a-stripe-rust-resistant-gene-in-a-space-induced-wheat-mutant-using-specific-locus-amplified-fragment-slaf-sequencing
#11
Jun-Liang Yin, Zheng-Wu Fang, Cai Sun, Peng Zhang, Xing Zhang, Chen Lu, Shu-Ping Wang, Dong-Fang Ma, Yong-Xing Zhu
Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most devastating diseases of wheat. Resistant cultivars are the preferred strategy to control the disease. Space-induced wheat mutant R39 has adult-plant resistance (APR) to Pst. Genetic analysis indicated that a single recessive gene, designated YrR39, was responsible for the APR of R39 to Pst. Bulked segregant analysis (BSA) combined with a SLAF sequencing (SLAF-seq) strategy was used to fine-map YrR39 to a 17.39 Mb segment on chromosome 4B...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29441130/cytogenetics-and-stripe-rust-resistance-of-wheat-thinopyrum-elongatum-hybrid-derivatives
#12
Daiyan Li, Dan Long, Tinghui Li, Yanli Wu, Yi Wang, Jian Zeng, Lili Xu, Xing Fan, Lina Sha, Haiqin Zhang, Yonghong Zhou, Houyang Kang
Background: Amphidiploids generated by distant hybridization are commonly used as genetic bridge to transfer desirable genes from wild wheat species into cultivated wheat. This method is typically used to enhance the resistance of wheat to biotic or abiotic stresses, and to increase crop yield and quality. Tetraploid Thinopyrum elongatum exhibits strong adaptability, resistance to stripe rust and Fusarium head blight, and tolerance to salt, drought, and cold. Results: In the present study, we produced hybrid derivatives by crossing and backcrossing the Triticum durum-Th...
2018: Molecular Cytogenetics
https://www.readbyqxmd.com/read/29415008/genome-wide-associations-for-multiple-pest-resistances-in-a-northwestern-united-states-elite-spring-wheat-panel
#13
Kaori Ando, Sheri Rynearson, Kebede T Muleta, Jhonatan Gedamu, Bedada Girma, Nilsa A Bosque-Pérez, Ming-Shun Chen, Mike O Pumphrey
Northern areas of the western United States are one of the most productive wheat growing regions in the United States. Increasing productivity through breeding is hindered by several biotic stresses which slow and constrain targeted yield improvement. In order to understand genetic variation for stripe rust (Puccinia striiformis f. sp. tritici), Septoria tritici blotch (Mycosphaerella graminicola), and Hessian fly (Mayetiola destructor) in regional germplasm, a panel of 408 elite spring wheat lines was characterized and genotyped with an Illumina 9K wheat single nucleotide polymorphism (SNP) chip to enable genome-wide association study (GWAS) analyses...
2018: PloS One
https://www.readbyqxmd.com/read/29411480/genome-re-sequencing-and-simple-sequence-repeat-markers-reveal-the-existence-of-divergent-lineages-in-the-canadian-puccinia-striiformis-f-sp-tritici-population-with-extensive-dna-methylation
#14
Gurcharn S Brar, Sajid Ali, Dinah Qutob, Stephen Ambrose, Kun Lou, Ron Maclachlan, Curtis J Pozniak, Yong-Bi Fu, Andrew G Sharpe, Hadley R Kutcher
Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing the presence of four divergent lineages with predominantly clonal structure. In the worldwide context, two previously reported lineages were identified: PstS0 (22%), representing an old northwestern-European, and PstS1 (35%), an invasive warm-temperature adapted...
February 6, 2018: Environmental Microbiology
https://www.readbyqxmd.com/read/29393562/a-novel-mads-box-transcription-factor-pstmcm1-1-is-responsible-for-full-virulence-of-puccinia-striiformis-f-sp-tritici
#15
Xiaoguo Zhu, Min Jiao, Jia Guo, Peng Liu, Chenglong Tan, Qian Yang, Yang Zhang, Ralf Thomas Voegele, Zhensheng Kang, Jun Guo
In many eukaryotes, transcription factor MCM1 gene plays crucial roles in regulating mating processes and pathogenesis by interacting with other co-factors. However, little is known about the role of MCM1 in rust fungi. Here, we identified two MCM1 orthologs, PstMCM1-1 and PstMCM1-2, in the stripe rust pathogen Puccinia striiformis f. sp. tritici (Pst). Sequence analysis indicated that both PstMCM1-1 and PstMCM1-2 contain conserved MADS domains and that PstMCM1-1 belongs to a group of SRF-like proteins that are evolutionarily specific to rust fungi...
February 2, 2018: Environmental Microbiology
https://www.readbyqxmd.com/read/29321647/molecular-marker-assisted-breeding-and-genome-composition-analysis-of-zhengmai-7698-an-elite-winter-wheat-cultivar
#16
Chun-Xin Li, Wei-Gang Xu, Rui Guo, Jian-Zhou Zhang, Xue-Li Qi, Lin Hu, Ming-Zhong Zhao
Zhengmai 7698 is an elite winter wheat variety widely cultivated in the Southern regions of the Yellow-Huai River Valley of China. Here, we report the molecular markers used for breeding Zhengmai 7698 and the genome composition of this cultivar revealed using genome-wide SNPs. A total of 26 DNA markers derived from the genes controlling gluten protein quality, grain hardness, flour color, disease resistance, or pre-harvesting sprouting resistance were used during breeding. Consequently, Zhengmai 7698 had strong gluten, high grain hardness index, white flour color, and high levels of resistance to powdery mildew, stripe rust infections, and pre-harvesting sprouting...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29303685/characterization-of-novel-gene-yr79-and-four-additional-qtl-for-all-stage-and-high-temperature-adult-plant-resistance-to-stripe-rust-in-spring-wheat-pi-182103
#17
Junyan Feng, Meinan Wang, Deven R See, Shiaoman Chao, You-Liang Zheng, Xianming Chen
Stripe rust, caused by Puccinia striiformis f. sp. tritici, is an important disease of wheat worldwide. Exploring new resistance genes is essential for breeding resistant wheat cultivars. PI 182103, a spring wheat landrace originally from Pakistan, has shown a high level of resistance to stripe rust in fields for many years, but genes for resistance to stripe rust in the variety have not been studied. To map the resistance gene(s) in PI 182103, 185 recombinant inbred lines (RILs) were developed from a cross with Avocet Susceptible (AvS)...
January 5, 2018: Phytopathology
https://www.readbyqxmd.com/read/29274571/tantf2-a-contributor-for-wheat-resistance-to-the-stripe-rust-pathogen
#18
Qiong Zhang, Bing Wang, Jinping Wei, Xiaojie Wang, Qingmei Han, Zhensheng Kang
Nuclear Transport Factor 2 (NTF2) functions as a critical regulator in balancing the GTP-and GDP-bound forms of Ran, a class of evolutionarily conserved small GTP-binding protein. During the incompatible interaction between wheat-Puccinia striiformis f. sp. tritici (Pst), a cDNA fragment encoding a putative wheat NTF2 gene was found to be significantly induced, suggesting a potential role in wheat resistance to Pst. In this work, the full length of TaNTF2 was obtained, with three copies located on 7A, 7B and 7D chromosomes, respectively...
February 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29251427/a-novel-wheat-nac-transcription-factor-tanac30-negatively-regulates-resistance-of-wheat-to-stripe-rust
#19
Bing Wang, Jinping Wei, Na Song, Ning Wang, Zhensheng Kang
NAC transcription factors are widespread in the plant kingdom and play essential roles in the transcriptional regulation of defense responses. In this study, we isolated a novel NAC transcription factor gene, TaNAC30, from a cDNA library constructed from wheat (Triticum aestivum) plants inoculated with the stripe rust pathogen Puccinia striiformis f. sp. tritici (Pst). TaNAC30 contains a typical NAM domain and localizes to the nucleus. Yeast one-hybrid assays revealed that TaNAC30 exhibits transcriptional activity and that its C-terminus is necessary for the activation of transcription...
December 18, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/29183031/novel-pcr-assays-for-the-detection-of-biological-agents-responsible-for-wheat-rust-diseases-puccinia-triticina-and-puccinia-striiformis-f-sp-tritici
#20
Adam Kuzdraliński, Anna Kot, Hubert Szczerba, Agnieszka Ostrowska, Michał Nowak, Marta Muszyńska, Michał Lechowski, Paweł Muzyka
The species Puccinia triticina (Pt) and Puccinia striiformis f. sp. tritici (Pst) are devastating cereal pathogens that cause leaf and stripe rust diseases. We developed PCR assays for the species-specific detection of Pt and Pst, 2 biological agents that cause wheat rust disease. For each pathogen, we validated 3 primer sets that target the second largest subunits of the RNA polymerase II (rpb2) and β-tubulin 1 (tub1) genes. The specificities of the primers were verified using naturally infected plant materials with visual symptoms of disease...
2017: Journal of Molecular Microbiology and Biotechnology
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