keyword
https://read.qxmd.com/read/38475749/genetic-mapping-of-deoxynivalenol-and-fusarium-damaged-kernel-resistance-in-an-adapted-durum-wheat-population
#1
JOURNAL ARTICLE
Samia Berraies, Yuefeng Ruan, Ron Knox, Ron DePauw, Firdissa Bokore, Richard Cuthbert, Barbara Blackwell, Maria Antonia Henriquez, David Konkin, Bianyun Yu, Curtis Pozniak, Brad Meyer
BACKGROUND: Fusarium head blight (FHB) infection results in Fusarium damaged kernels (FDK) and deoxynivalenol (DON) contamination that are downgrading factors at the Canadian elevators. Durum wheat (Triticum turgidum L. var. durum Desf.) is particularly susceptible to FHB and most of the adapted Canadian durum wheat cultivars are susceptible to moderately susceptible to this disease. However, the durum line DT696 is less susceptible to FHB than commercially grown cultivars. Little is known about genetic variation for durum wheat ability to resist FDK infection and DON accumulation...
March 12, 2024: BMC Plant Biology
https://read.qxmd.com/read/38381966/cytogenetic-and-genomic-characterization-of-a-novel-wheat-tetraploid-thinopyrum-elongatum-1bs%C3%A2-1el-translocation-line-with-stripe-rust-resistance
#2
JOURNAL ARTICLE
Dandan Wu, Xin Zhao, Yangqiu Xie, Lingyu Li, Yinghui Li, Wei Zhu, Lili Xu, Yi Wang, Jian Zeng, Yiran Cheng, Lina Sha, Xing Fan, Haiqin Zhang, Yonghong Zhou, Huoyang Kang
Stripe rust, caused by Puccinia striiformis f. sp tritici ( Pst ), is a destructive wheat disease pathogen. Thinopyrum elongatum is a valuable germplasm including diploid, tetraploid, and decaploid with plenty of biotic and abiotic resistance. In a previous study, we generated a stripe rust resistance wheat-tetraploid Th. elongatum 1E/1D substitution line K17-841-1. To further apply the wild germplasm for wheat breeding, we selected and obtained a new homozygous wheat-tetraploid Th. elongatum translocation line T1BS·1EL using genomic in situ hybridization (GISH), fluorescence in situ hybridization (FISH), oligo-FISH-Painting, and the wheat 55K single nucleotide polymorphisms (SNPs) genotyping array...
February 21, 2024: Plant Disease
https://read.qxmd.com/read/38362529/a-novel-variation-of-tagw2-6b-increases-grain-weight-without-penalty-in-grain-protein-content-in-wheat-triticum-aestivum-l
#3
JOURNAL ARTICLE
Chan Bi, Chaoxiong Wei, Jinghui Li, Shaozhe Wen, Huanhuan Zhao, Jiazheng Yu, Xintian Shi, Yuan Zhang, Qiaofeng Liu, Yufeng Zhang, Baoyun Li, Mingshan You
UNLABELLED: Yield and quality are two crucial breeding objects of wheat therein grain weight and grain protein content (GPC) are two key relevant factors correspondingly. Investigations of their genetic mechanisms represent special significance for breeding. In this study, 199 F2 plants and corresponding F2:3 families derived from Nongda3753 (ND3753) and its EMS-generated mutant 564 (M564) were used to investigate the genetic basis of larger grain and higher GPC of M564. QTL analysis identified a total of 33 environmentally stable QTLs related to thousand grain weight (TGW), grain area (GA), grain circle (GC), grain length (GL), grain width (GW), and GPC on chromosomes 1B, 2A, 2B, 4D, 6B, and 7D, respectively, among which QGw...
February 2024: Molecular Breeding
https://read.qxmd.com/read/38281142/characterization-of-quantitative-trait-loci-for-leaf-rust-resistance-in-the-uzbekistani-wheat-landrace-teremai-bugdai
#4
JOURNAL ARTICLE
Xiangyang Xu, Genqiao Li, Guihua Bai, Ruolin Bian, Amy Bernardo, Jim Kolmer, Brett F Carver, Tezera W Wolabu, Yanqi Wu
Leaf rust, caused by Puccinia triticina Eriks. (Pt), is a major cause of wheat yield losses globally, and novel leaf rust resistance genes are needed to enhance wheat leaf rust resistance. Teremai Bugdai is a landrace from Uzebekistan that is highly resistant to many current races of Pt in the U.S.A. To unravel leaf rust resistance loci in Teremai Bugdai, a recombinant inbred line (RIL) population of Teremai Bugdai × TAM 110 was evaluated for response to Pt race Pt54-1 (TNBGJ) and genotyped using single nucleotide polymorphism (SNP) markers generated by genotyping-by-sequencing (GBS)...
January 28, 2024: Phytopathology
https://read.qxmd.com/read/38268170/virulence-and-molecular-characterization-reveal-sign-of-sexual-genetic-recombination-of-puccinia-striiformis-f-sp-tritici-and-puccinia-striiformis-f-sp-hordei-in-tibet
#5
JOURNAL ARTICLE
Zhimin Du, Zejian Li, Maxinzhi Liu, Lin Wang, Mudi Sun, Xinyao Ma, Zhensheng Kang, Jie Zhao
Stripe rust of wheat and stripe rust of barley are caused by different formae speciales, Puccinia striiformis f. sp. tritici ( Pst ) and P. striiformis f. sp. hordei ( Psh ), respectively. To understand the relationship between the populations of the two formae speciales, a total of 260 P. striiformis isolates, including 140 from barley and 120 from wheat collected from Linzhi, Tibet, China from 2018 to 2020, were tested on 18 barley and 13 wheat genotypes, and genotyped with 26 single-nucleotide polymorphism (SNP)-based Kompetitive Allele Specific PCR (KASP) markers...
January 24, 2024: Plant Disease
https://read.qxmd.com/read/38265482/identification-of-sr67-a-new-gene-for-stem-rust-resistance-in-ku168-2-located-close-to-the-sr13-locus-in-wheat
#6
JOURNAL ARTICLE
Jyoti Saini Sharma, Mingzhe Che, Thomas Fetch, Brent D McCallum, Steven S Xu, Colin W Hiebert
Sr67 is a new stem rust resistance gene that represents a new resource for breeding stem rust resistant wheat cultivars Re-appearance of stem rust disease, caused by the fungal pathogen Puccinia graminis f. sp. tritici (Pgt), in different parts of Europe emphasized the need to develop wheat varieties with effective resistance to local Pgt populations and exotic threats. A Kyoto University wheat (Triticum aestivum L.) accession KU168-2 was reported to carry good resistance to leaf and stem rust. To identify the genomic region associated with the KU168-2 stem rust resistance, a genetic study was conducted using a doubled haploid (DH) population from the cross RL6071 × KU168-2...
January 24, 2024: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38190359/mapping-of-a-recessive-gene-for-all-stage-resistance-to-stripe-rust-in-a-wheat-line-derived-from-cultivated-einkorn-triticum-monococcum-l
#7
JOURNAL ARTICLE
Minghu Zhang, Xin Liu, Lei Wu, Ke Zhou, Jiaru Yang, Yongping Miao, Ming Hao, Shunzong Ning, Zhongwei Yuan, Bo Jiang, Xuejiao Chen, Xue Chen, Lianquan Zhang, Lin Huang, Dengcai Liu
Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive fungal diseases of wheat. Cultivated einkorn (Triticum monococcum ssp. monococcum, 2n=2x=14, AmAm), one of the founder crops of agriculture, harbors unexploited genetic sources for wheat improvement. An advanced wheat line Z15-1949 with 42 chromosomes, selected from the hybrids of Pst-susceptible common wheat cultivar Crocus and resistant T. monococcum accession 10-1, exhibits high resistance to a mixture of the Chinese prevalent Pst races...
January 8, 2024: Plant Disease
https://read.qxmd.com/read/38128078/genetic-analysis-reveals-relationships-among-populations-of-puccinia-striiformis-f-sp-tritici-from-shaanxi-gansu-ningxia-xinjiang-of-northwestern-and-sichuan-yunnan-of-southwestern-china
#8
JOURNAL ARTICLE
Zhuoyue Zhang, Yanzi Fu, Jie Huang, Yunliang Peng, Xinli Zhou, Haifeng Gao, Baotong Wang, Qiang Li
Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive diseases worldwide. In China, wheat stripe rust generally occurs in the northwestern and southwestern regions; however, the genetic relationships of Pst populations between these regions are largely unclear. To determine the population structure and potential migration route in these regions, 235 isolates collected from Xinjiang (XJ), Gansu (GS), Ningxia (NX), Shaanxi (SX), Sichuan (SC), and Yunnan (YN) provinces in 2021 and 2022 were phenotyped using two sets of Pst differentials and genotyped using 20 competitive allele-specific PCR-single nucleotide polymorphism (KASP-SNP) markers...
December 21, 2023: Plant Disease
https://read.qxmd.com/read/38091074/identification-and-fine-mapping-of-qyras286-2bl-conferring-adult-plant-resistance-to-stripe-rust-in-cultivated-emmer-wheat
#9
JOURNAL ARTICLE
Yuqin Li, Yanling Hu, Yun Jiang, Qiang Zhou, Yu He, Jingshu He, Xuejiao Chen, Xue Chen, Bo Jiang, Ming Hao, Shunzong Ning, Zhongwei Yuan, Jinrui Zhang, Chongjing Xia, Bihua Wu, Lihua Feng, Lianquan Zhang, Dengcai Liu, Lin Huang
A novel major adult-plant stripe rust resistance QTL derived from cultivated emmer wheat was mapped to a 123.6-kb region on wheat chromosome 2BL. Stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici (Pst), is one of the most devastating diseases of wheat. Identification of new sources of resistance and their utilization in breeding programs is the effectively control strategy. The objective of this study was to identify and genetically characterize the stripe rust resistance derived from the cultivated emmer accession AS286...
December 13, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/38002936/mapping-of-a-stripe-rust-resistance-gene-yr72-in-the-common-wheat-landraces-aus27506-and-aus27894-from-the-watkins-collection
#10
JOURNAL ARTICLE
Mumta Chhetri, Hanif Miah, Debbie Wong, Matthew Hayden, Urmil Bansal, Harbans Bariana
Stripe rust, caused by Puccinia striiformis f. sp. tritici ( Pst ), is among the major threats to global wheat production. The common wheat landraces AUS27506 and AUS27894 displayed stripe rust resistance against several commercially prevailing Pst pathotypes. These genotypes were crossed with a stripe-rust-susceptible landrace AUS27229 to understand the inheritance of resistance and to determine the genomic location(s) of underlying gene(s). F3 generations of crosses AUS27506/AUS27229 and AUS27894/AUS27229 showed monogenic segregation for stripe rust resistance under greenhouse conditions...
October 25, 2023: Genes
https://read.qxmd.com/read/37964231/unraveling-the-genetic-basis-of-grain-number-related-traits-in-a-wheat-agropyron-cristatum-introgressed-line-through-high-resolution-linkage-mapping
#11
JOURNAL ARTICLE
Yun-Feng Xu, Fei-Fei Ma, Jin-Peng Zhang, Hong Liu, Li-Hui Li, Diao-Guo An
BACKGROUND: Grain number per spike (GNS) is a pivotal determinant of grain yield in wheat. Pubing 3228 (PB3228), a wheat-Agropyron cristatum germplasm, exhibits a notably higher GNS. RESULTS: In this study, we developed a recombinant inbred line (RIL) population derived from PB3228/Gao8901 (PG-RIL) and constructed a high-density genetic map comprising 101,136 loci, spanning 4357.3 cM using the Wheat 660 K SNP array. The genetic map demonstrated high collinearity with the wheat assembly IWGSC RefSeq v1...
November 15, 2023: BMC Plant Biology
https://read.qxmd.com/read/37900737/genome-wide-linkage-mapping-of-root-system-architecture-related-traits-in-common-wheat-triticum-aestivum-l
#12
JOURNAL ARTICLE
Yirong Jin, Yamei Wang, Jindong Liu, Fuyan Wang, Xiaodong Qiu, Peng Liu
Identifying loci for root system architecture (RSA) traits and developing available markers are crucial for wheat breeding. In this study, RSA-related traits, including total root length (TRL), total root area (TRA), and number of root tips (NRT), were evaluated in the Doumai/Shi4185 recombinant inbred line (RIL) population under hydroponics. In addition, both the RILs and parents were genotyped using the wheat 90K single-nucleotide polymorphism (SNP) array. In total, two quantitative trait loci (QTLs) each for TRL ( QTRL...
2023: Frontiers in Plant Science
https://read.qxmd.com/read/37875655/molecular-identification-and-validation-of-four-stable-qtl-for-adult-plant-resistance-to-powdery-mildew-in-chinese-wheat-cultivar-bainong-64
#13
JOURNAL ARTICLE
Xiaowan Xu, Daojie Sun, Zhongqiu Ni, Xinyu Zou, Xiaoting Xu, Mengjing Sun, Qiang Cao, Jingyang Tong, Fugong Ding, Yelun Zhang, Fengju Wang, Yachao Dong, Luyan Zhang, Jiankang Wang, Xianchun Xia, Zhonghu He, Yuanfeng Hao
Four stable QTL for adult-plant resistance (APR) to powdery mildew were identified on chromosome arms 1DL, 2BS, 2DL, and 6BL in the widely grown Chinese wheat cultivar Bainong 64. These QTL had no effect on response to stripe rust or leaf rust. Wheat powdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), is a devastating fungal disease. Seedlings of Chinese wheat Bainong 64 are susceptible to Bgt, but adult plants have maintained resistance since it was released in 1996. A population of 171 recombinant inbred lines (RILs) developed from cross Jingshuang 16/Bainong 64 (JS16/BN64) was used to dissect genetic components of powdery mildew resistance...
October 25, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37847385/introgression-of-the-bread-wheat-d-genome-encoded-lr34-yr18-sr57-pm38-ltn1-adult-plant-resistance-gene-into-triticum-turgidum-durum-wheat
#14
JOURNAL ARTICLE
Hongyu Li, Peng Zhang, Ming Luo, Mohammad Hoque, Soma Chakraborty, Brenton Brooks, Jianbo Li, Smriti Singh, Kerrie Forest, Allan Binney, Lianquan Zhang, Diane Mather, Michael Ayliffe
Lack of function of a D-genome adult plant resistance gene upon introgression into durum wheat. The wheat Lr34/Yr18/Sr57/Pm38/Ltn1 adult plant resistance gene (Lr34), located on chromosome arm 7DS, provides broad spectrum, partial, adult plant resistance to leaf rust, stripe rust, stem rust and powdery mildew. It has been used extensively in hexaploid bread wheat (AABBDD) and conferred durable resistance for many decades. These same diseases also occur on cultivated tetraploid durum wheat and emmer wheat but transfer of D genome sequences to those subspecies is restricted due to very limited intergenomic recombination...
October 17, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37762591/identification-and-validation-of-a-stable-major-effect-quantitative-trait-locus-for-kernel-number-per-spike-on-chromosome-2d-in-wheat-triticum-aestivum-l
#15
JOURNAL ARTICLE
Zhi Li, Qinyi Luo, Yawen Deng, Ke Du, Xinli Li, Tianheng Ren
A recombinant inbred line population including 371 lines was developed by a high kernel number per spike (KNPS) genotype T1208 and a low KNPS genotype Chuannong18 (CN18). A genetic linkage map consisting of 11,583 markers was constructed by the Wheat55K SNP Array. The quantitative trait loci (QTLs) related to KNPS were detected in three years. Eight, twenty-seven, and four QTLs were identified using the ICIM-BIP, ICIM-MET, and ICIM-EPI methods, respectively. One QTL, QKnps.sau-2D.1 , which was mapped on chromosome 2D, can explain 18...
September 19, 2023: International Journal of Molecular Sciences
https://read.qxmd.com/read/37761952/quantitative-trait-locus-analysis-of-hessian-fly-resistance-in-soft-red-winter-wheat
#16
JOURNAL ARTICLE
John W Bagwell, Madhav Subedi, Suraj Sapkota, Benjamin Lopez, Bikash Ghimire, Zhenbang Chen, G David Buntin, Bochra A Bahri, Mohamed Mergoum
The Hessian fly (HF) is an invasive insect that has caused millions of dollars in yield losses to southeastern US wheat farms. Genetic resistance is the most sustainable solution to control HF. However, emerging biotypes are quickly overcoming resistance genes in the southeast; therefore, identifying novel sources of resistance is critical. The resistant line "UGA 111729" and susceptible variety "AGS 2038" were crossbred to generate a population of 225 recombinant inbred lines. This population was phenotyped in the growth chamber (GC) during 2019 and 2021 and in field (F) trials in Georgia during the 2021-2022 growing seasons...
September 17, 2023: Genes
https://read.qxmd.com/read/37686178/the-detection-of-yr-genes-in-xinjiang-wheat-cultivars-using-different-molecular-markers
#17
JOURNAL ARTICLE
Minghao Zhang, Ainisai Saimi, Qi Liu, Zeyu Ma, Jing Chen
Wheat stripe rust is a fungal disease caused by Puccinia striiformis f. sp. Tritici ( Pst ). It significantly impacts wheat yields in Xinjiang, China. Breeding and promoting disease-resistant cultivars carrying disease-resistance genes remains the most cost-effective strategy with which to control the disease. In this study, 17 molecular markers were used to identify Yr5 , Yr9 , Yr10 , Yr15 , Yr17 , Yr18 , Yr26 , Yr41 , Yr44 , and Yr50 in 82 wheat cultivars from Xinjiang. According to the differences in SNP loci, the KASP markers for Yr30 , Yr52 , Yr78 , Yr80 , and Yr81 were designed and detected in the same set of 82 wheat cultivars...
August 29, 2023: International Journal of Molecular Sciences
https://read.qxmd.com/read/37615732/genetic-mapping-of-the-wheat-leaf-rust-resistance-gene-lr2a-and-its-importance-in-canadian-wheat-cultivars
#18
JOURNAL ARTICLE
Dinushika Thambugala, Mallorie K Lewarne, Brent D McCallum, Andriy Bilichak, Colin W Hiebert, Curt A McCartney
Leaf rust resistance gene Lr2a was located to chromosome arm 2DS in three mapping populations, which will facilitate map-based cloning and marker-assisted selection of Lr2a in wheat breeding programs. Incorporating effective leaf rust resistance (Lr) genes into high-yielding wheat cultivars has been an efficient method of disease control. One of the most widely used genes in Canada is the multi-allelic resistance gene Lr2, with alleles Lr2a, Lr2b, Lr2c, and Lr2d. The Lr2a allele confers complete resistance to a large portion of the Puccinia triticina (Pt) population in Canada...
August 24, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37584740/identification-of-kasp-markers-and-candidate-genes-for-drought-tolerance-in-wheat-using-90k-snp-array-genotyping-of-near-isogenic-lines-targeting-a-4bs-quantitative-trait-locus
#19
JOURNAL ARTICLE
Guannan Liu, Dongcheng Liu, Aimin Zhang, Hui Liu, Md Sultan Mia, Daniel Mullan, Guijun Yan
This study identified a novel SNP and developed a highly efficient KASP marker for drought tolerance in wheat by genotyping NILs targeting a major QTL for drought tolerance using an SNP array and validation with commercial varieties. Common wheat (Triticum aestivum L.) is an important winter crop worldwide and a typical allopolyploid with a large and complex genome. With global warming, the environmental volatility and incidence of drought in wheat-producing areas will increase. Molecular markers for drought tolerance are urgently needed to enhance drought tolerance breeding...
August 16, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://read.qxmd.com/read/37566234/genetic-analysis-of-stripe-rust-resistance-in-the-common-wheat-line-kfa-2-kachu-under-a-chinese-rust-environment
#20
JOURNAL ARTICLE
Yuruo Yin, Chan Yuan, Yichen Zhang, Shunda Li, Bin Bai, Ling Wu, Yong Ren, Ravi P Singh, Caixia Lan
We mapped a new race-specific seedling stripe rust resistance gene on wheat chromosome 5BL and a new APR locus QYr.hazu-2BS from CIMMYT wheat line Kfa/2*Kachu. Breeding resistant wheat (Triticum aestivum) varieties is the most economical and efficient way to manage wheat stripe rust, but requires the prior identification of new resistance genes and development of associated molecular markers for marker-assisted selection. To map stripe rust resistance loci in wheat, we used a recombinant inbred line population generated by crossing the stripe rust-resistant parent 'Kfa/2*Kachu' and the susceptible parent 'Apav#1'...
August 11, 2023: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
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