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wheat Stripe rust

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https://www.readbyqxmd.com/read/29909527/comparative-genome-wide-mapping-versus-extreme-pool-genotyping-and-development-of-diagnostic-snp-markers-linked-to-qtl-for-adult-plant-resistance-to-stripe-rust-in-common-wheat
#1
Jianhui Wu, Shuo Huang, Qingdong Zeng, Shengjie Liu, Qilin Wang, Jingmei Mu, Shizhou Yu, Dejun Han, Zhensheng Kang
A major stripe rust resistance QTL on chromosome 4BL was localized to a 4.5-Mb interval using comparative QTL mapping methods and validated in 276 wheat genotypes by haplotype analysis. CYMMIT-derived wheat line P10103 was previously identified to have adult plant resistance (APR) to stripe rust in the greenhouse and field. The conventional approach for QTL mapping in common wheat is laborious. Here, we performed QTL detection of APR using a combination of genome-wide scanning and extreme pool-genotyping. SNP-based genetic maps were constructed using the Wheat55 K SNP array to genotype a recombinant inbred line (RIL) population derived from the cross Mingxian 169 × P10103...
June 16, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29874811/wheat-gene-taatg8j-contributes-to-stripe-rust-resistance
#2
Md Abdullah-Al Mamun, Chunlei Tang, Yingchao Sun, Md Nazrul Islam, Peng Liu, Xiaojie Wang, Zhensheng Kang
Autophagy-related 8 (ATG8) protein has been reported to be involved in plant's innate immune response, but it is not clear whether such genes play a similar role in cereal crops against obligate biotrophic fungal pathogens. Here, we reported an ATG8 gene from wheat ( Triticum aestivum ), designated TaATG8j . This gene has three copies located in chromosomes 2AS, 2BS, and 2DS. The transcriptions of all three copies were upregulated in plants of the wheat cultivar Suwon 11, inoculated with an avirulent race (CYR23) of Puccinia striiformis f...
June 5, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29797034/combination-of-all-stage-and-high-temperature-adult-plant-resistance-qtl-confers-high-level-durable-resistance-to-stripe-rust-in-winter-wheat-cultivar-madsen
#3
L Liu, M N Wang, J Y Feng, D R See, S M Chao, X M Chen
Wheat cultivar Madsen has a new gene on the short arm of chromosome 1A and two QTL for all-stage resistance and three QTL for high-temperature adult-plant resistance that in combination confer high-level, durable resistance to stripe rust. Wheat cultivar Madsen has maintained a high-level resistance to stripe rust over 30 years. To map quantitative trait loci (QTL) underlying the high-level, durable resistance, 156 recombinant inbred lines (RILs) developed from cross Avocet S × Madsen were phenotyped with selected races of Puccinia striiformis f...
May 24, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29792772/genome-sequence-resources-for-the-wheat-stripe-rust-pathogen-puccinia-striiformis-f-sp-tritici-and-the-barley-stripe-rust-pathogen-puccinia-striiformis-f-sp-hordei
#4
Chongjing Xia, Meinan Wang, Chuntao Yin, Omar E Cornejo, Scot Hulbert, Xianming Chen
Puccinia striiformis f. sp. tritici (Pst) causes devastating stripe (yellow) rust on wheat and P. striiformis f. sp. hordei (Psh) causes stripe rust on barley. Several Pst genomes are available, but no Psh genome is available. More genomes of Pst and Psh are needed to understand the genome evolution and molecular mechanisms of their pathogenicity. We sequenced Pst isolate 93-210 and Psh isolate 93TX-2 using PacBio and Illumina technologies, and RNA sequencing. Their genomic sequences were assembled to contigs with high continuity and showed significant structural differences...
May 24, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29765383/fish-based-markers-enable-identification-of-chromosomes-derived-from-tetraploid-thinopyrum-elongatum-in-hybrid-lines
#5
Daiyan Li, Tinghui Li, Yanli Wu, Xiaohui Zhang, Wei Zhu, Yi Wang, Jian Zeng, Lili Xu, Xing Fan, Lina Sha, Haiqin Zhang, Yonghong Zhou, Houyang Kang
Tetraploid Thinopyrum elongatum , which has superior abiotic stress tolerance characteristics, and exhibits resistance to stripe rust, powdery mildew, and Fusarium head blight, is a wild relative of wheat and a promising source of novel genes for wheat improvement. Currently, a high-resolution Fluorescence in situ hybridization (FISH) karyotype of tetraploid Th. elongatum is not available. To develop chromosome-specific FISH-based markers, the hexaploid Trititrigia 8801 and two accessions of tetraploid Th. elongatum were characterized by different repetitive sequences probes...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29743956/molecular-cytogenetic-identification-of-three-rust-resistant-wheat-thinopyrum-ponticum-partial-amphiploids
#6
Yanru Pei, Yu Cui, Yanping Zhang, Honggang Wang, Yinguang Bao, Xingfeng Li
Background: Thinopyrum ponticum (2n = 10× = 70, JS JS JS JS JJJJJJ) is an important wild perennial Triticeae species that has a unique gene pool with many desirable traits for common wheat. The partial amphiploids derived from wheat- Th. ponticum set up a bridge for transferring valuable genes from Th. ponticum into common wheat. Results: In this study, genomic in situ hybridization (GISH), multicolor GISH (mcGISH) and fluorescence in situ hybridization (FISH) were used to analyze the genomic constitution of SN0389, SN0398 and SN0406, three octoploid accessions with good resistance to rust...
2018: Molecular Cytogenetics
https://www.readbyqxmd.com/read/29696895/-prediction-model-of-meteorological-grade-of-wheat-stripe-rust-in-winter-reproductive-area-sichuan-basin-china
#7
Xiang Guo, Ming Tian Wang, Guo Zhi Zhang
The winter reproductive areas of Puccinia striiformis var. striiformis in Sichuan Basin are often the places mostly affected by wheat stripe rust. With data on the meteorological condition and stripe rust situation at typical stations in the winter reproductive area in Sichuan Basin from 1999 to 2016, this paper classified the meteorological conditions inducing wheat stripe rust into 5 grades, based on the incidence area ratio of the disease. The meteorological factors which were biologically related to wheat stripe rust were determined through multiple analytical methods, and a meteorological grade model for forecasting wheat stripe rust was created...
December 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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 Yr10 CG )...
June 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
#15
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-thinopyrum-intermedium-translocation-chromosomes-carrying-resistance-to-wheat-stripe-rust-in-line-z4-and-its-derived-progenies
#16
Tao Lang, Shixiao La, Bin Li, Zhihui Yu, Qiheng Chen, Jianbo Li, Ennian Yang, Guangrong Li, Zujun Yang
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 line 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...
March 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
#17
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
#18
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
#19
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
#20
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
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