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Marker-assisted selection to pyramid fusarium head blight resistance loci Fhb1 and Fhb2 in the high-quality soft wheat cultivar Yangmai 15

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Journal of Integrative Agriculture 2023年第2期22卷 360-370页

作者： HU Wen-jing FU Lu-ping GAO De-rong LI Dong-sheng LIAO Sen LU Cheng-bin Key Laboratory of Wheat Biology and Genetic Improvement for Low&Middle Yangtze Valley Ministry of Agriculture and Rural AffairsLixiahe Institute of Agricultural SciencesYangzhou 225007P.R.China College of Agronomy&Center for Crop Genome Engineering Henan Agricultural UniversityZhengzhou 45002P.R.China Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College Yangzhou UniversityYangzhou 225009P.R.China Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225009P.R.China College of Agriculture Yangtze UniversityJingzhou 434023P.R.China

fusarium head blight(FHB)is one of the most detrimental wheat diseases which greatly decreases the yield and grain quality,especially in the middle and lower reaches of the Yangtze River of ***1 and Fhb2 are two major resistance loci against fusarium *** 15(YM15)is one of the most popular varieties in the middle and lower reaches of the Yangtze River,and it has good weak gluten characters but poor resistance to *** we used Fhb1 and Fhb2 to improve the FHB resistance of YM15 by a molecular marker-assisted selection(MAS)backcrossing *** selection of agronomic traits was performed for each *** successfully selected seven introgressed lines which carry homozygous Fhb1 and Fhb2 with significantly higher FHB resistance than the recurrent parent *** of the introgressed lines had agronomic and quality characters that were similar to *** study demonstrates that the pyramiding of Fhb1 and Fhb2 could significantly improve the FHB resistance in wheat using the MAS approach.

关键词： fusarium head blight marker-assisted selection Fhb1 Fhb2 resistance breeding wheat

An integrated pest management program for managing fusarium head blight disease in cereals

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Journal of Integrative Agriculture 2022年第12期21卷 3434-3444页

作者： CHEN A-hai Tofazzal ISLAM MA Zhong-hua State Key Laboratory of Rice Biology/Key Laboratory of Molecular Biology of Crop Pathogens and Insects Institute of BiotechnologyZhejiang UniversityHangzhou 310058P.R.China Institute of Biotechnology and Genetic Engineering(IBGE) Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh

fusarium head blight(FHB)is a worldwide devastating disease of small grain cereals and fusarium graminearum species complex(FGSC)is the major pathogen causing the *** epidemics of FHB lead to the reduction of grain yield and economic ***,mycotoxins produced by the FHB pathogens are hazardous to the health of human and *** this review,we summarize the epidemiology of FHB,and introduce effects of this disease on economy,environment and food *** focus on the integrated management approaches for controlling FHB including agronomic practices,resistant cultivars,chemical control,and *** addition,we also discuss the potential novel management strategies against FHB and mycotoxin.

关键词： fusarium head blight fusarium graminearum integrated pest management program mycotoxins

Integration of meta-QTL discovery with omics: Towards a molecular breeding platform for improving wheat resistance to fusarium head blight

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The Crop Journal 2021年第4期9卷 739-749页

作者： Tong Zheng Chen Hua Lei Li Zhengxi Sun Minmin Yuan Guihua Bai Gavin Humphreys Tao Li Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Collaborative Innovation of Modern Crops and Food Crops in Jiangsu/Jiangsu Key Laboratory of Crop Genetics and Physiology College of AgricultureYangzhou UniversityYangzhou 225009JiangsuChina USDA-ARS Hard Winter Wheat Genetics Research UnitManhattanKS 66506USA Agriculture&Agrifood Canada Ottawa Research&Development CentreOttawaON K1A 0C6Canada

fusarium head blight(FHB) is a global wheat disease that devastates wheat production. Resistance to FHB spread within a wheat spike(type Ⅱ resistance) and to mycotoxin accumulation in infected kernel(type Ⅲ resistance) are the two main types of resistance. Of hundreds of QTL that have been reported, only a few can be used in wheat breeding because most show minor and/or inconsistent effects in different genetic backgrounds. We describe a new strategy for identifying robust and reliable meta-QTL(mQTL)that can be used for improvement of wheat FHB resistance. It involves integration of mQTL analysis with mQTL physical mapping and identification of single-copy markers and candidate genes. Using metaanalysis, we consolidated 625 original QTL from 113 publications into 118 genetic map-based mQTL(gmQTL). These gmQTL were further located on the Chinese Spring reference sequence map. Finally, 77 high-confidence mQTL(hcmQTL) were selected from the reference sequence-based mQTL(smQTL).Locus-specific single nucleotide polymorphism(SNP) and simple sequence repeat(SSR) markers and17 genes responsive to FHB were then identified in the hcmQTL intervals by combined analysis of transcriptomic and proteomic data. This work may lead to a comprehensive molecular breeding platform for improving wheat resistance to FHB.

关键词： Wheat fusarium head blight High-confidence meta-QTL Omics

Elimination of the yellow pigment gene PSY-E2 tightly linked to the fusarium head blight resistance gene Fhb7 from Thinopyrum ponticum

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The Crop Journal 2023年第3期11卷 957-962页

作者： Xuefeng Li Dong Li Yu Xuan Ziming He Lanfei Zhao Yongchao Hao Wenyang Ge Shoushen Xu Bingqian Hou Biao Wang Jun Guo Wenwen Liu Mingzhu Li Yi Han Cunyao Bo Yinguang Bao Zengjun Qi Steven S.Xu Guihua Bai Hongwei Wang Lingrang Kong State Key Laboratory of Crop Biology Shandong Key Laboratory of Crop BiologyCollege of AgronomyShandong Agricultural UniversityTai’an 271018ShandongChina State Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural UniversityNanjing 210095JiangsuChina Department of Agronomy Kansas State University2004 Throckmorton HallManhattanKS 66506USA Crop Research Institute Shandong Academy of Agricultural SciencesJinan 250100ShandongChina Cereal Crops Research Unit Red River Valley Agricultural Research CenterUSDA-ARSFargoND 58102USA USDA Hard Winter Wheat Genetics Research Unit4008 Throckmorton HallManhattanKS 66506USA

Fhb7 is a major gene that was transferred from Thinopyrum ponticum to chromosome 7D of wheat(Triticum aestivum)and confers resistance to both fusarium head blight(FHB)and fusarium crown rot(FCR).However,Fhb7 is tightly linked to the PSY-E2 gene,which causes yellow flour,limiting its application in *** break this linkage,marker K-PSY was developed for tagging PSY-E2 and used with Fhb7 markers to identify recombination between the two *** 21,000 BC1F2 backcross progeny(Chinese Spring ph1bph1b*2/SDAU 2028)revealed two Fhb7^(+)wheat-Tp7el_(2)L lines,Shannong 2–16and Shannong 16–1,that carry a desired truncated Fhb7^(+)translocation segment without *** two lines show levels of resistance to FHB and FCR similar to those of the original translocation line SDAU 2028,but have white *** facilitate Fhb7 use in wheat breeding,STS markers were developed and used to isolate Fhb7 on a truncated Tp7el_(2) translocation ***-isogenic lines carrying the Fhb7^(+)segment were generated in the backgrounds of three commercial cultivars,and Fhb7^(+)lines showed increased FHB and FCR resistance without yield *** breakage of the tight linkage between Fhb7 and PSY-E2 via homoeologous recombination provides genetic resources for improvement of wheat resistance to FHB and FCR and permit the large-scale deployment of Fhb7 in breeding using marker-assisted selection.

关键词： Triticum aestivum Thinopyrum ponticum fusarium head blight fusarium crown rot Truncated Fhb7 translocation

Can effectoromics and loss-of-susceptibility be exploited for improving fusarium head blight resistance in wheat?

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The Crop Journal 2021年第1期9卷 1-16页

作者： Andrii Gorash Rita Armonienė Kemal Kazan Institute of Agriculture Lithuanian Research Centre for Agriculture and Forestry(LAMMC)Instituto av.1Akademija LT-58344Lithuania Commonwealth Scientific and Industrial Research Organisation(CSIRO)Agriculture and Food BrisbaneQLD 4067Australia Queensland Alliance for Agriculture and Food Innovation(QAAFI) The University of QueenslandBrisbaneQLD 4067Australia

Bread wheat(Triticum aestiuum L.),which provides about 20%of daily calorie intake,is the most widely cultivated crop in the world,in terms of total area devoted to its ***,even small increases in wheat yield can translate into large *** the gap between actual and potential grain yield in wheat is a crucial task to feed the increasing world *** head blight(FHB)caused by the pathogenic fungus Fusaium graminearum and related fusarium species is one of the most devastating wheat diseases throughout the *** disease reduces not only the yield but also the quality by contaminating the grain with mycotoxins harmful for humans,animals and the *** recent years,remarkable achievements attained in omics"technologies have not only provided new insights into understanding of processes involved in pathogenesis but also helped develop effective new tools for practical plant *** of the genomes of various wheat patho gens,including ***,as well as those of bread and durum wheat and their wild relatives,together with advances made in transcriptomics and bioinformatics,has allowed the identification of candidate pathogen effectors and corresponding host resistance(R)and susceptibility(S)***,so far,FHB effectors and wheat susceptibility genes/factors have been poorly *** this paper,we first briefly highlighted recent examples of improving resistance against pathogens via new techniques in different host *** then propose effective strategies towards developing wheat cultivars with improved resistance to *** hope that the article will spur discussions and interest among researchers about novel approaches with great potential for improving wheat against FHB.

关键词： Effectoromics Susceptibility genes fusarium head blight fusarium graminearum Wheat breeding for resistance

Activity of the Fungicide JS399-19 Against fusarium head blight of Wheat and the Risk of Resistance

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Agricultural Sciences in China 2011年第12期10卷 1906-1913页

作者： CHEN Yu WANG Wen-xiang ZHANG Ai-fang GU Chun-yan ZHOU Ming-guo GAO Tong-chun Institute of Plant Protection Anhui Academy of Agricultural Sciences Hefei 230031 P.R.China College of Plant Protection Nanjing Agricultural University Nanjing 210095 P.R.China

This report reviews the characteristics of JS399-19, a novel cyanoacrylate fungicide. JS399-19 strongly inhibits the mycelial growth of the fungal plant pathogens of the genus fusarium and exhibits great potential in controlling fusarium head blight （FHB） on wheat and other cereals. The mode of action of JS399-19 is evidently different from that of benzimidazole （for example, carbendazim） and other sort of fungicides, making it a possible replacement for carbendazim in China to manage carbendazim-resistant subpopulations of fusarium graminearum and F. asiaticum. JS399-t9 has excellent protective and curative activity against these pathogens. Incorrect use of this fungicide, however, is likely to select for resistance. Among JS399-19-resistant mutants of F. asiaticum induced in the laboratory, the resistant level of mutants was high and the phenotype of resistance against JS399-19 was conferred by a major gene by genetic analysis. The fitness of laboratory-induced JS399-19-resistant mutants of F. asiaticum was nearly equal to that of their parents. JS399-19 lacks cross resistance with other sort fungicides. To control FHB with JS399-19 and to delay the development of the fungicide-resistance, farmers should use tank mixtures containing JS399-19 and carbendazim, metconazole, tebuconazole, or prothioconazole.

关键词： fungicide JS399-19 cyanoacrylate fungicide fusarium head blight activity resistance risk

Detection of fusarium head blight using a YOLOv5s-based method improved by attention mechanism

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International Journal of Agricultural and Biological Engineering 2024年第5期17卷 247-254页

作者： Lei Shi Chengkai Yang Xiaoyun Sun Jiayue Sun Ping Dong Shufeng Xiong Jian Wang College of Information and Management Science Henan Agricultural UniversityZhengzhou 450046China Henan Grain Crop Collaborative Innovation Center Zhengzhou 450046China

fusarium head blight (FHB) is one of the most destructive diseases in global wheat production. In order to count the FHB-infected wheat ears under field conditions, this study proposed an algorithm for diseased wheat ear detection based on improved YOLOv5s (Tr-YOLOv5s). The Swin Transformer was used to replace the CSPDarknet backbone network to enhance the extraction of characteristic information of the population wheat ears of FHB in the field background. The convolutional block attention module (CBAM) attention mechanism was added to improve the detection effect of target wheat ears, subsequently improving the overall accuracy of the model. The original loss function complete intersection over union (CIoU) was replaced by Scylla intersection over union (SIoU) loss to accelerate the model convergence and decrease the loss value. The results showed that the mean average precision (mAP) of the Tr-YOLOv5s model reached 90.64%, making a 4.63% improvement compared to the original YOLOv5s model. The improved model could quickly detect and count wheat FHB ear in the field environment, which laid a foundation for the subsequent automatic disease identification and grading of wheat FHB under field conditions.

关键词： fusarium head blight YOLOv5s attention mechanism Swin Transformer loss function

Genome-wide identification and characterization of thaumatin-like protein family genes in wheat and analysis of their responses to fusarium head blight infection

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Food Production, Processing and Nutrition 2022年第1期4卷 340-350页

作者： Runsheng Ren Xinli Zhou Xu Zhang Xin Li Pingping Zhang Yi He Institute of Crop Sciences Jiangsu Academy of Agricultural Sciences/CIMMYT-JAAS Joint Center for Wheat DiseasesNanjing 210014China School of Life Sciences Jiangsu UniversityZhenjiang 212013China Wheat Research Institute School of Life Sciences and EngineeringSouthwest University of Science and TechnologyMianyang 621010SichuanChina

Thaumatin-like proteins (TLPs) play potential roles in plant resistance to various diseases. Identifying TLPs is neces-sary to determine their function and apply them to plant disease resistance. However, limited information is available about TLP-family genes in wheat, especially regarding their responses to fusarium species, which cause fusarium head blight in wheat. In this study, we conducted a comprehensive genome-wide survey of TLP genes in wheat and identified 129 TLP genes in the wheat genome, which were unevenly distributed on 21 wheat chromosomes, with 5A containing the highest number. Phylogenetic analysis showed that these 129 wheat TLP genes together with 24 Arabidopsis TLPs were classified into 7 groups based on the protein sequences. We systematically analyzed the genes in terms of their sequence characterization, chromosomal locations, exon-intron distribution, duplication (tandem and segmental) events and expression profiles in response to fusarium infection. Furthermore, we analyzed differen-tially expressed TLP genes based on publicly available RNA-seq data obtained from a resistant near isogenic wheat line at different time points after fusarium graminearum inoculation. Then, the expression of 9 differentially expressed TLP genes was confirmed by real-time PCR, and these 9 genes were all upregulated in the resistant Sumai 3 variety, which was generally consistent with the RNA-seq data. Our results provide a basis for selecting candidate wheat TLP genes for further studies to determine the biological functions of the TLP genes in wheat.

关键词： Wheat fusarium head blight Thaumatin-like protein Genome-wide identification Phylogenetic analysis

Validation of EST-derived STS markers localized on ***-3BS for fusarium head blight resistance in wheat using a‘Wangshuibai’derived population

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Journal of Genetics and Genomics 2008年第10期35卷 625-629页

作者： Amir Mohammad Naji Mohammad Moghaddam Mohammad Reza Ghaffari Hashem Pour Irandoost Laleh Karimi Farsad Seyed Mostafa Pirseyedi Seyed Abolghasem Mohammadi Behzad Ghareyazie Mohsen Mardi Department of Agronomy and Crop Breeding Shahed University of Tehran Department of Agronomy and Plant Breeding University of Tabriz Department of Genomics Agricultural Biotechnology Research Institute of Iran

A few EST-derived STS markers localized on ***-3BS, a major QTL for resistance to fusarium head blight （FHB） in wheat, have been previously identified in the ＇Sumai 3＇/＇Stoa＇ population. In this study, we used a ＇Wangshuibai＇（resistant）/＇Seri82＇（susceptible） derived population, linkage group, QTL, and quantitative gene expression analysis to assess the genetic background dependence and stability of the EST-derived STS markers for use in marker aided selection to improve FHB resistance in wheat. Based on our results, a QTL in the map interval of Xsts3B-138_1-Xgwrn493 on chromosome 3BS was detected for FHB resistance, which accounted for up to 16% of the phenotypic variation. BLASTN analysis indicated that Xsts3B-138_1 sequence had significant similarity with the resistance gene analogue. Real-time quantitative PCR showed that the relative expression of Xsts3B-138_1 in ＇Wangshuibai＇ at 96 h after inoculation was 2.6 times higher than ＇Seri82＇. Our results underlined that EST-derived STS3B-138 markers could be predominantly used in marker aided selection to improve FHB resistance in wheat.

关键词： EST-derived STS markers Qfhs.ndsu-3BS fusarium head blight wheat