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Genome-Wide Identification and Characterization of Fusarium graminearum-Responsive lncRNAs in Triticum aestivum. Genes (Basel) 2020; 11:genes11101135. [PMID: 32992604 PMCID: PMC7601646 DOI: 10.3390/genes11101135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 01/24/2023] Open
Abstract
Although the war between wheat and Fusarium has been widely investigated for years, long noncoding RNAs (lncRNAs), which have been proven to regulate important processes in the development and stress responses of plants, are still poorly known in wheat against Fusarium. Herein, we systematically reveal the roles of wheat lncRNAs in the process of Fusarium graminearum infection by high-throughput RNA sequencing. Well over 4130 of the total 4276 differentially expressed lncRNAs were already specifically expressed at 12 h postinoculation (hpi), but only 89 of these were specifically expressed at 24 hpi, indicating that the initial stage was the crucial stage for lncRNA-mediated gene regulation of wheat defense against F. graminearum. Target analysis showed the lncRNAs participated in various biological stress processes and had exclusive regulation models at different infection stages. Further H2O2 accumulation and protein ubiquitination assays supported this idea. Moreover, two lncRNAs (XLOC_302848 and XLOC_321638) were identified as Fusarium seedling blight resistance candidates by lncRNA-target expression pattern validation, and two lncRNAs (XLOC_113815, XLOC_123624) were Fusarium head blight resistance potential regulators by cross-validating the RNAseq data with the refined meta-QTL of wheat FHB resistance. These findings extend our knowledge on wheat lncRNAs response to F. graminearum attack and provide new insights for the functional and molecular research of future interactions between wheat and Fusarium.
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Pang Y, Liu C, Wang D, St Amand P, Bernardo A, Li W, He F, Li L, Wang L, Yuan X, Dong L, Su Y, Zhang H, Zhao M, Liang Y, Jia H, Shen X, Lu Y, Jiang H, Wu Y, Li A, Wang H, Kong L, Bai G, Liu S. High-Resolution Genome-wide Association Study Identifies Genomic Regions and Candidate Genes for Important Agronomic Traits in Wheat. MOLECULAR PLANT 2020; 13:1311-1327. [PMID: 32702458 DOI: 10.1016/j.molp.2020.07.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/08/2020] [Accepted: 07/17/2020] [Indexed: 05/18/2023]
Abstract
Wheat (Triticum aestivum) is a major staple food crop worldwide. Genetic dissection of important agronomic traits is essential for continuous improvement of wheat yield to meet the demand of the world's growing population. We conducted a large-scale genome-wide association study (GWAS) using a panel of 768 wheat cultivars that were genotyped with 327 609 single-nucleotide polymorphisms generated by genotyping-by-sequencing and detected 395 quantitative trait loci (QTLs) for 12 traits under 7 environments. Among them, 273 QTLs were delimited to ≤1.0-Mb intervals and 7 of them are either known genes (Rht-D, Vrn-B1, and Vrn-D1) that have been cloned or known QTLs (TaGA2ox8, APO1, TaSus1-7B, and Rht12) that were previously mapped. Eight putative candidate genes were identified for three QTLs that enhance spike seed setting and grain size using gene expression data and were validated in three bi-parental populations. Protein sequence analysis identified 33 putative wheat orthologs that have high identity with rice genes in QTLs affecting similar traits. Large r2 values for additive effects observed among the QTLs for most traits indicated that the phenotypes of these identified QTLs were highly predictable. Results from this study demonstrated that significantly increasing GWAS population size and marker density greatly improves detection and identification of candidate genes underlying a QTL, solidifying the foundation for large-scale QTL fine mapping, candidate gene validation, and developing functional markers for genomics-based breeding in wheat.
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Affiliation(s)
- Yunlong Pang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Chunxia Liu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Danfeng Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Paul St Amand
- USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA
| | - Amy Bernardo
- USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA; Department of Plant Pathology, Kansas State University, Manhattan, KS 66506, USA
| | - Wenhui Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Fang He
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China; College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Linzhi Li
- Yantai Academy of Agricultural Sciences, Yantai 265500, China
| | - Liming Wang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471000, China
| | - Xiufang Yuan
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Lei Dong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Yu Su
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Huirui Zhang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Meng Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Yunlong Liang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Hongze Jia
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Xitong Shen
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Yue Lu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Hongming Jiang
- Yantai Academy of Agricultural Sciences, Yantai 265500, China
| | - Yuye Wu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Anfei Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Honggang Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Lingrang Kong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Guihua Bai
- USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA.
| | - Shubing Liu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China.
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He X, Brar GS, Bonnett D, Dreisigacker S, Hyles J, Spielmeyer W, Bhavani S, Singh RP, Singh PK. Disease Resistance Evaluation of Elite CIMMYT Wheat Lines Containing the Coupled Fhb1 and Sr2 Genes. PLANT DISEASE 2020; 104:2369-2376. [PMID: 32689920 DOI: 10.1094/pdis-02-20-0369-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fusarium head blight (FHB) and stem rust are among the most devastating diseases of wheat worldwide. Fhb1 is the most widely utilized and the only isolated gene for FHB resistance, while Sr2 is a durable stem rust resistance gene used in rust-prone areas. The two loci are closely linked on the short arm of chromosome 3B and the two genes are in repulsion phase among cultivars. With climate change and the shift in Fusarium populations, it is imperative to develop wheat cultivars resistant to both diseases. The present study was dedicated to developing wheat germplasm combining Fhb1 and Sr2 resistance alleles in the International Maize and Wheat Improvement Center (CIMMYT)'s elite cultivars' backgrounds. Four recombinant inbred lines (RILs) in Hartog background that have the resistant Fhb1 and Sr2 alleles in coupled phase linkage were crossed with seven CIMMYT bread wheat lines, resulting in 208 lines. Molecular markers for both genes were employed in addition to the use of pseudo-black chaff (PBC) as a phenotypic marker for the selection of Sr2. At various stages of the selection process, progeny lines were assessed for FHB index, Fusarium damaged kernels (FDK), stem rust, and PBC expression as well as other diseases of interest (stripe rust and leaf spotting diseases). The 25 best lines were selected for CIMMYT's wheat breeding program. In addition to expressing resistance to FHB, most of these 25 lines have an acceptable level of resistance to other tested diseases. These lines will be useful for wheat breeding programs worldwide and potentially speed up the resistance breeding efforts against FHB and stem rust.
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Affiliation(s)
- Xinyao He
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Mexico
| | - Gurcharn S Brar
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Mexico
- Faculty of Land and Food Systems, the University of British Columbia (UBC), Vancouver, BC Canada V6T 1Z4
| | - David Bonnett
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Mexico
- BASF Agricultural Solutions, Sabin, MN, U.S.A
| | | | - Jessica Hyles
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Canberra, Australia
- Plant Breeding Institute, University of Sydney, Cobbitty, Australia
| | - Wolfgang Spielmeyer
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Canberra, Australia
| | - Sridhar Bhavani
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Mexico
| | - Ravi P Singh
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Mexico
| | - Pawan K Singh
- International Maize and Wheat Improvement Center (CIMMYT), El Batan, Mexico
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104
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Yang J, Zhang T, Mao H, Jin H, Sun Y, Qi Z. A Leymus chinensis histidine-rich Ca 2+-binding protein binds Ca 2+/Zn 2+ and suppresses abscisic acid signaling in Arabidopsis. JOURNAL OF PLANT PHYSIOLOGY 2020; 252:153209. [PMID: 32791445 DOI: 10.1016/j.jplph.2020.153209] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/09/2020] [Accepted: 05/25/2020] [Indexed: 05/23/2023]
Abstract
Intracellular Ca2+ plays an essential role in plant cellular sensing of various environmental stress signals by modulating the activity of Ca2+-binding proteins. Leymus chinensis is a dominant forage grass widely distributed in the Eurasian Steppe that is well adapted to drought and salty soils common in the region. Through transcript profiling of L. chinensis roots, we identified a transcript predicted to encode histidine-rich calcium-binding protein (HRC), a protein recently characterized in wheat. L. chinensis HRC (LcH RC) localized in the nucleus, as demonstrated using a transient gene expression method that we developed for this species. Different regions of LcHRC showed affinity for either Ca2+ or Zn2+, but not Mg2+ and Mn2+. Arabidopsis thaliana seedlings heterologously overexpressing LcHRC showed greater sensitivity to abscisic acid (ABA), along with decreased expression of some ABA-induced marker genes, but no increase in ABA content. Screening a Arabidopsis cDNA yeast library identified a Tudor/PWWP/MBT-domain-containing protein (AtPWWP3) that interacts with LcHRC. AtPWWP3 also localized in the nucleus and is predicted to mediate gene expression by modifying histone deacetylation. Based on these results, we propose a functional model of LcHRC action.
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Affiliation(s)
- Ju Yang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Ting Zhang
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Huiping Mao
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Huiqing Jin
- Research Centre for Horticultural Science and Technology of Hohhot, Hohhot, 010020, PR China
| | - Yongwei Sun
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China
| | - Zhi Qi
- Key Laboratory of Forage and Endemic Crop Biotechnology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010010, PR China; State Key Laboratory of Reproductive Regulatory and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010010, PR China.
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105
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Wang Q, Yuan E, Ling X, Zhu-Salzman K, Guo H, Ge F, Sun Y. An aphid facultative symbiont suppresses plant defence by manipulating aphid gene expression in salivary glands. PLANT, CELL & ENVIRONMENT 2020; 43:2311-2322. [PMID: 32596816 DOI: 10.1111/pce.13836] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/15/2020] [Accepted: 06/23/2020] [Indexed: 05/29/2023]
Abstract
Aphids often carry facultative symbionts to achieve diverse advantages. Serratia symbiotica, one of facultative endosymbionts, increases aphid tolerance to heat. However, whether it benefits aphid colonization on host plants is yet to be determined. In the current study, we found that Acyrthosiphon pisum harbouring S. symbiotica had longer feeding duration on Medicago truncatula than Serratia-free aphids. Contrastingly, Serratia-free aphids triggered higher accumulation of reactive oxygen species (ROS), jasmonic acid and salicylic acid responsive genes and cytosolic Ca2+ elevations than Serratia-infected aphids. Transcriptomic analysis of salivary glands indicated that a histidine-rich Ca2+ -binding protein-like gene (ApHRC) was expressed more highly in the salivary gland of Serratia-infected aphids than that of Serratia-free aphids. Once ApHRC was silenced, Serratia-infected aphids also displayed shorter phloem-feeding duration and caused Ca2+ elevation and ROS accumulation in plants. Our results suggest that ApHRC, a potential effector up-regulated by S. symbiotica in the salivary glands, impairs plant defence response by suppressing Ca2+ elevation and ROS accumulation, allowing colonization of aphids. This study has provided an insight into how facultative symbionts facilitate aphid colonization and adaptation to host plants.
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Affiliation(s)
- Qinyang Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Erliang Yuan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyu Ling
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
- Maoming Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Maoming, China
| | - Keyan Zhu-Salzman
- Department of Entomology, Texas A&M University, College Station, Texas, USA
| | - Huijuan Guo
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Feng Ge
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
- Maoming Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Maoming, China
| | - Yucheng Sun
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
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106
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An orphan protein of Fusarium graminearum modulates host immunity by mediating proteasomal degradation of TaSnRK1α. Nat Commun 2020; 11:4382. [PMID: 32873802 PMCID: PMC7462860 DOI: 10.1038/s41467-020-18240-y] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
Fusarium graminearum is a causal agent of Fusarium head blight (FHB) and a deoxynivalenol (DON) producer. In this study, OSP24 is identified as an important virulence factor in systematic characterization of the 50 orphan secreted protein (OSP) genes of F. graminearum. Although dispensable for growth and initial penetration, OSP24 is important for infectious growth in wheat rachis tissues. OSP24 is specifically expressed during pathogenesis and its transient expression suppresses BAX- or INF1-induced cell death. Osp24 is translocated into plant cells and two of its 8 cysteine-residues are required for its function. Wheat SNF1-related kinase TaSnRK1α is identified as an Osp24-interacting protein and shows to be important for FHB resistance in TaSnRK1α-overexpressing or silencing transgenic plants. Osp24 accelerates the degradation of TaSnRK1α by facilitating its association with the ubiquitin-26S proteasome. Interestingly, TaSnRK1α also interacts with TaFROG, an orphan wheat protein induced by DON. TaFROG competes against Osp24 for binding with the same region of TaSnRKα and protects it from degradation. Overexpression of TaFROG stabilizes TaSnRK1α and increases FHB resistance. Taken together, Osp24 functions as a cytoplasmic effector by competing against TaFROG for binding with TaSnRK1α, demonstrating the counteracting roles of orphan proteins of both host and fungal pathogens during their interactions. Fusarium graminearum is a major fungal pathogen of cereals. Here the authors show that F. graminearum secretes an effector, Osp24, that induces degradation of the wheat TaSnRK1α kinase to promote disease while an orphan wheat protein, TaFROG1, can compete with Osp24 for binding to TaSnRK1α and protect it from degradation
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107
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Soni N, Hegde N, Dhariwal A, Kushalappa AC. Role of laccase gene in wheat NILs differing at QTL-Fhb1 for resistance against Fusarium head blight. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 298:110574. [PMID: 32771175 DOI: 10.1016/j.plantsci.2020.110574] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 05/20/2023]
Abstract
Fusarium head blight (FHB), caused mainly by Fusarium graminearum (Fg), is one of the most severe diseases of wheat. It affects grain yield and quality due to mycotoxin contamination, which is harmful for both human and livestock consumption. Cell wall lignification, following pathogen invasion, is one of the innate defense responses. Plant laccases are known to lignify the secondary cell walls. A metabolo-genomics study identified laccase as one of the candidate genes in QTL-Fhb1 of wheat NILs derived from Sumai 3*5/Thatcher cross. Based on phylogenetics, it was named as TaLAC4. Real-time qPCR revealed a strongly induced expression of TaLAC4 in NIL-R. The VIGS based transient silencing of TaLAC4 in NIL-R resulted in an increased susceptibility leading to Fg spread within the entire spike in 15dpi, contrasting to non-silenced where the infection was limited to inoculated spikelets. Histopathology revealed thickened cell walls, mainly due to G-lignin, in non-silenced NIL-R, relative to silenced, in conjunction with higher total lignin content. Metabolic profiling of TaLAC4 silenced NILs identified the accumulation of several precursor metabolites higher in abundances upstream TaLAC4. These results confirm that the resistance function of TaLAC4 in NIL-R is due to pathogen-induced lignification of secondary cell walls in the rachis.
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Affiliation(s)
- Nancy Soni
- Plant Science Department, McGill University, Ste.-Anne-de-Bellevue, QC, Canada
| | - Niranjan Hegde
- Plant Science Department, McGill University, Ste.-Anne-de-Bellevue, QC, Canada
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108
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Xu Q, Xu F, Qin D, Li M, Fedak G, Cao W, Yang L, Dong J. Molecular Mapping of QTLs Conferring Fusarium Head Blight Resistance in Chinese Wheat Cultivar Jingzhou 66. PLANTS 2020; 9:plants9081021. [PMID: 32806760 PMCID: PMC7465298 DOI: 10.3390/plants9081021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/03/2020] [Accepted: 08/10/2020] [Indexed: 11/25/2022]
Abstract
Fusarium head blight (FHB) is a destructive disease of wheat (Triticum aestivum L.), which not only significantly reduces grain yield, but also affects end-use quality. Breeding wheat cultivars with high FHB resistance is the most effective way to control the disease. The Chinese wheat cultivar Jingzhou 66 (JZ66) shows moderately high FHB resistance; however, the genetic basis of its resistance is unknown. A doubled haploid (DH) population consisting 209 lines was developed from a cross of JZ66 and Aikang 58 (AK58), a FHB susceptible wheat cultivar, to identify quantitative trait loci (QTL) that contribute to the FHB resistance. Five field experiments were established across two consecutive crop seasons (2018 and 2019) to evaluate the DH lines and parents for FHB response. The parents and DH population were genotyped with the wheat 55K single-nucleotide polymorphism (SNP) assay. Six QTLs associated with FHB resistance in JZ66 were mapped on chromosome 2DS, 3AS, 3AL, 3DL, 4DS, and 5DL, respectively. Four of the QTL (QFhb.hbaas-2DS, QFhb.hbaas-3AL, QFhb.hbaas-4DS, and QFhb.hbaas-5DL) were detected in at least two environments, and the QTL on 3AL and 5DL might be new. The QTL with major effects, QFhb.hbaas-2DS and QFhb.hbaas-4DS, explained up to 36.2% and 17.6% of the phenotypic variance, and were co-localized with the plant semi-dwarfing loci Rht8 and Rht-D1. The dwarfing Rht8 allele significantly increased spike compactness (SC) and FHB susceptibility causing a larger effect on FHB response than Rht-D1 observed in this study. PCR–based SNP markers for QFhb.hbaas-2DS, QFhb.hbaas-3AL, QFhb.hbaas-4DS, and QFhb.hbaas-5DL, were developed to facilitate their use in breeding for FHB resistance by marker-assisted selection.
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Affiliation(s)
- Qing Xu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (Q.X.); (F.X.); (D.Q.); (M.L.)
| | - Fuchao Xu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (Q.X.); (F.X.); (D.Q.); (M.L.)
| | - Dandan Qin
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (Q.X.); (F.X.); (D.Q.); (M.L.)
| | - Meifang Li
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (Q.X.); (F.X.); (D.Q.); (M.L.)
| | - George Fedak
- Ottawa Research Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada; (G.F.); (W.C.)
| | - Wenguang Cao
- Ottawa Research Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada; (G.F.); (W.C.)
| | - Lijun Yang
- Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
- Correspondence: (L.Y.); (J.D.); Tel.: +86-027-8738-0399 (J.D.)
| | - Jing Dong
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (Q.X.); (F.X.); (D.Q.); (M.L.)
- Correspondence: (L.Y.); (J.D.); Tel.: +86-027-8738-0399 (J.D.)
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Hales B, Steed A, Giovannelli V, Burt C, Lemmens M, Molnár-Láng M, Nicholson P. Type II Fusarium head blight susceptibility conferred by a region on wheat chromosome 4D. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:4703-4714. [PMID: 32473016 PMCID: PMC7410183 DOI: 10.1093/jxb/eraa226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/04/2020] [Indexed: 05/20/2023]
Abstract
Fusarium head blight (FHB) causes significant grain yield and quality reductions in wheat and barley. Most wheat varieties are incapable of preventing FHB spread through the rachis, but disease is typically limited to individually infected spikelets in barley. We point-inoculated wheat lines possessing barley chromosome introgressions to test whether FHB resistance could be observed in a wheat genetic background. The most striking differential was between 4H(4D) substitution and 4H addition lines. The 4H addition line was similarly susceptible to the wheat parent, but the 4H(4D) substitution line was highly resistant, which suggests that there is an FHB susceptibility factor on wheat chromosome 4D. Point inoculation of Chinese Spring 4D ditelosomic lines demonstrated that removing 4DS results in high FHB resistance. We genotyped four Chinese Spring 4DS terminal deletion lines to better characterize the deletions in each line. FHB phenotyping indicated that lines del4DS-2 and del4DS-4, containing smaller deletions, were susceptible and had retained the susceptibility factor. Lines del4DS-3 and del4DS-1 contain larger deletions and were both significantly more resistant, and hence had presumably lost the susceptibility factor. Combining the genotyping and phenotyping results allowed us to refine the susceptibility factor to a 31.7 Mbp interval on 4DS.
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Affiliation(s)
- Benjamin Hales
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Andrew Steed
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Vincenzo Giovannelli
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Christopher Burt
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Marc Lemmens
- University of Natural Resources and Life Sciences, Institute for Biotechnology in Plant Production, Department of Agrobiotechnology, IFA Tulln, Tulln, Austria
| | - Marta Molnár-Láng
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Paul Nicholson
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
- Correspondence:
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110
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Hales B, Steed A, Giovannelli V, Burt C, Lemmens M, Molnár-Láng M, Nicholson P. Type II Fusarium head blight susceptibility conferred by a region on wheat chromosome 4D. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:4703-4714. [PMID: 32473016 DOI: 10.1101/2020.02.06.937425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/04/2020] [Indexed: 05/24/2023]
Abstract
Fusarium head blight (FHB) causes significant grain yield and quality reductions in wheat and barley. Most wheat varieties are incapable of preventing FHB spread through the rachis, but disease is typically limited to individually infected spikelets in barley. We point-inoculated wheat lines possessing barley chromosome introgressions to test whether FHB resistance could be observed in a wheat genetic background. The most striking differential was between 4H(4D) substitution and 4H addition lines. The 4H addition line was similarly susceptible to the wheat parent, but the 4H(4D) substitution line was highly resistant, which suggests that there is an FHB susceptibility factor on wheat chromosome 4D. Point inoculation of Chinese Spring 4D ditelosomic lines demonstrated that removing 4DS results in high FHB resistance. We genotyped four Chinese Spring 4DS terminal deletion lines to better characterize the deletions in each line. FHB phenotyping indicated that lines del4DS-2 and del4DS-4, containing smaller deletions, were susceptible and had retained the susceptibility factor. Lines del4DS-3 and del4DS-1 contain larger deletions and were both significantly more resistant, and hence had presumably lost the susceptibility factor. Combining the genotyping and phenotyping results allowed us to refine the susceptibility factor to a 31.7 Mbp interval on 4DS.
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Affiliation(s)
- Benjamin Hales
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Andrew Steed
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Vincenzo Giovannelli
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Christopher Burt
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Marc Lemmens
- University of Natural Resources and Life Sciences, Institute for Biotechnology in Plant Production, Department of Agrobiotechnology, IFA Tulln, Tulln, Austria
| | - Marta Molnár-Láng
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Paul Nicholson
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich, UK
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111
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Gong X, He X, Zhang Y, Li L, Sun Z, Bai G, Singh PK, Li T. Development of an Evaluation System for Fusarium Resistance in Wheat Grains and Its Application in Assessment of the Corresponding Effects of Fhb1. PLANT DISEASE 2020; 104:2210-2216. [PMID: 32511047 DOI: 10.1094/pdis-12-19-2584-re] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Fusarium head blight (FHB) caused by Fusarium species is a globally important wheat disease. Host resistance to FHB is composed of multiple mechanisms, including resistance to initial infection (type I), disease spread (type II), toxin accumulation (type III), kernel infection (type IV), and yield loss (type V), of which the last three have been less studied. Traditionally, the Fusarium-damaged kernel rate (FDK; percentage of Fusarium-infected grains) from point- or spray-inoculated experiments was used as the parameter for type IV resistance, which may be problematic because of the influence of type II resistance. Here we propose a new definition for type IV resistance: that is, the resistance against Fusarium infection expressed in wheat grains that have the same chance in contact with the pathogen, under favorable temperature and humidity for infection. Fhb1 confers strong type II resistance, leading to significantly reduced FHB severity and FDK. To investigate the role of Fhb1 in type IV resistance, a pair of near-isogenic lines, R22W (Fhb1 carrier, resistant in terms of type II resistance) and S22V (non-Fhb1, susceptible), along with eight wheat genotypes differing at Fhb1 were inoculated at different grain development stages with Fusarium macrospores both in vivo and in vitro. The in vivo experiments with all florets inoculated demonstrated a significant reduction in thousand kernel weight (TKW) in inoculated grains, regardless of their Fhb1 status and developmental stages. Surprisingly, R22W showed more TKW reduction than S22V, which was supported by the scanning electron microscopy observation that confirmed the more severe degradation of starch granules in R22W grains. The in vitro experiments demonstrated that grains from both R22W and S22V promoted fungal colonization, but no significant difference was found between the two lines. In summary, our results indicated that the proposed type IV evaluation system is effective in determining different grain resistance levels, providing novel tools for FHB resistance breeding. The finding that Fhb1 is not associated with type IV resistance enriches our understanding of this gene.
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Affiliation(s)
- Xuan Gong
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
| | - Xinyao He
- International Maize and Wheat Improvement Center (CIMMYT), 06600 Mexico DF, Mexico
| | - Yuhui Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
| | - Lei Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
| | - Zhengxi Sun
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
| | - Guihua Bai
- USDA Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, U.S.A
| | - Pawan Kumar Singh
- International Maize and Wheat Improvement Center (CIMMYT), 06600 Mexico DF, Mexico
| | - Tao Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou 225009, China
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112
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Ghimire B, Sapkota S, Bahri BA, Martinez-Espinoza AD, Buck JW, Mergoum M. Fusarium Head Blight and Rust Diseases in Soft Red Winter Wheat in the Southeast United States: State of the Art, Challenges and Future Perspective for Breeding. FRONTIERS IN PLANT SCIENCE 2020; 11:1080. [PMID: 32765563 PMCID: PMC7378807 DOI: 10.3389/fpls.2020.01080] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 06/30/2020] [Indexed: 05/21/2023]
Abstract
Among the biotic constraints to wheat (Triticum aestivum L.) production, fusarium head blight (FHB), caused by Fusarium graminearum, leaf rust (LR), caused by Puccinia triticina, and stripe rust (SR) caused by Puccinia striiformis are problematic fungal diseases worldwide. Each can significantly reduce grain yield while FHB causes additional food and feed safety concerns due to mycotoxin contamination of grain. Genetic resistance is the most effective and sustainable approach for managing wheat diseases. In the past 20 years, over 500 quantitative trait loci (QTLs) conferring small to moderate effects for the different FHB resistance types have been reported in wheat. Similarly, 79 Lr-genes and more than 200 QTLs and 82 Yr-genes and 140 QTLs have been reported for seedling and adult plant LR and SR resistance, respectively. Most QTLs conferring rust resistance are race-specific generally conforming to a classical gene-for-gene interaction while resistance to FHB exhibits complex polygenic inheritance with several genetic loci contributing to one resistance type. Identification and deployment of additional genes/QTLs associated with FHB and rust resistance can expedite wheat breeding through marker-assisted and/or genomic selection to combine small-effect QTL in the gene pool. LR disease has been present in the southeast United States for decades while SR and FHB have become increasingly problematic in the past 20 years, with FHB arguably due to increased corn acreage in the region. Currently, QTLs on chromosome 1B from Jamestown, 1A, 1B, 2A, 2B, 2D, 4A, 5A, and 6A from W14, Ning7840, Ernie, Bess, Massey, NC-Neuse, and Truman, and 3B (Fhb1) from Sumai 3 for FHB resistance, Lr9, Lr10, Lr18, Lr24, Lr37, LrA2K, and Lr2K38 genes for LR resistance, and Yr17 and YrR61 for SR resistance have been extensively deployed in southeast wheat breeding programs. This review aims to disclose the current status of FHB, LR, and SR diseases, summarize the genetics of resistance and breeding efforts for the deployment of FHB and rust resistance QTL on soft red winter wheat cultivars, and present breeding strategies to achieve sustainable management of these diseases in the southeast US.
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Affiliation(s)
- Bikash Ghimire
- Department of Plant Pathology, University of Georgia, Griffin Campus, Griffin, GA, United States
| | - Suraj Sapkota
- Department of Plant Pathology, University of Georgia, Griffin Campus, Griffin, GA, United States
- Institute of Plant Breeding, Genetics, and Genomics, University of Georgia, Griffin Campus, Griffin, GA, United States
| | - Bochra A. Bahri
- Department of Plant Pathology, University of Georgia, Griffin Campus, Griffin, GA, United States
- Institute of Plant Breeding, Genetics, and Genomics, University of Georgia, Griffin Campus, Griffin, GA, United States
| | | | - James W. Buck
- Department of Plant Pathology, University of Georgia, Griffin Campus, Griffin, GA, United States
| | - Mohamed Mergoum
- Institute of Plant Breeding, Genetics, and Genomics, University of Georgia, Griffin Campus, Griffin, GA, United States
- Department of Crop and Soil Sciences, University of Georgia, Griffin Campus, Griffin, GA, United States
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113
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Dhariwal R, Henriquez MA, Hiebert C, McCartney CA, Randhawa HS. Mapping of Major Fusarium Head Blight Resistance from Canadian Wheat cv. AAC Tenacious. Int J Mol Sci 2020; 21:E4497. [PMID: 32599868 PMCID: PMC7350018 DOI: 10.3390/ijms21124497] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/18/2020] [Accepted: 06/22/2020] [Indexed: 01/22/2023] Open
Abstract
Fusarium head blight (FHB) is one of the most devastating wheat disease due to its direct detrimental effects on grain-yield, quality and marketability. Resistant cultivars offer the most effective approach to manage FHB; however, the lack of different resistance resources is still a major bottleneck for wheat breeding programs. To identify and dissect FHB resistance, a doubled haploid wheat population produced from the Canadian spring wheat cvs AAC Innova and AAC Tenacious was phenotyped for FHB response variables incidence and severity, visual rating index (VRI), deoxynivalenol (DON) content, and agronomic traits days to anthesis (DTA) and plant height (PHT), followed by single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) marker genotyping. A high-density map was constructed consisting of 10,328 markers, mapped on all 21 chromosomes with a map density of 0.35 cM/marker. Together, two major quantitative trait loci for FHB resistance were identified on chromosome 2D from AAC Tenacious; one of these loci on 2DS also colocated with loci for DTA and PHT. Another major locus for PHT, which cosegregates with locus for low DON, was also identified along with many minor and epistatic loci. QTL identified from AAC Tenacious may be useful to pyramid FHB resistance.
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Affiliation(s)
- Raman Dhariwal
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, AB T1J 4B1, Canada;
| | - Maria A. Henriquez
- Agriculture and Agri-Food Canada, Morden Research and Development Centre, Morden, MB R6M 1Y5, Canada; (M.A.H.); (C.H.); (C.A.M.)
| | - Colin Hiebert
- Agriculture and Agri-Food Canada, Morden Research and Development Centre, Morden, MB R6M 1Y5, Canada; (M.A.H.); (C.H.); (C.A.M.)
| | - Curt A. McCartney
- Agriculture and Agri-Food Canada, Morden Research and Development Centre, Morden, MB R6M 1Y5, Canada; (M.A.H.); (C.H.); (C.A.M.)
| | - Harpinder S. Randhawa
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, AB T1J 4B1, Canada;
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114
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Guan J, Garcia DF, Zhou Y, Appels R, Li A, Mao L. The Battle to Sequence the Bread Wheat Genome: A Tale of the Three Kingdoms. GENOMICS PROTEOMICS & BIOINFORMATICS 2020; 18:221-229. [PMID: 32561470 PMCID: PMC7801200 DOI: 10.1016/j.gpb.2019.09.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 08/15/2019] [Accepted: 10/23/2019] [Indexed: 02/06/2023]
Abstract
In the year 2018, the world witnessed the finale of the race to sequence the genome of the world's most widely grown crop, the common wheat. Wheat has been known to bear a notoriously large and complicated genome of a polyploidy nature. A decade competition to sequence the wheat genome initiated with a single consortium of multiple countries, taking a conventional strategy similar to that for sequencing Arabidopsis and rice, became ferocious over time as both sequencing technologies and genome assembling methodologies advanced. At different stages, multiple versions of genome sequences of the same variety (e.g., Chinese Spring) were produced by several groups with their special strategies. Finally, 16 years after the rice genome was finished and 9 years after that of maize, the wheat research community now possesses its own reference genome. Armed with these genomics tools, wheat will reestablish itself as a model for polyploid plants in studying the mechanisms of polyploidy evolution, domestication, genetic and epigenetic regulation of homoeolog expression, as well as defining its genetic diversity and breeding on the genome level. The enhanced resolution of the wheat genome should also help accelerate development of wheat cultivars that are more tolerant to biotic and/or abiotic stresses with better quality and higher yield.
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Affiliation(s)
- Jiantao Guan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Diego F Garcia
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yun Zhou
- Collaborative Innovation Center of Crop Stress Biology & Institute of Plant Stress Biology, School of Life Science, Henan University, Kaifeng 475004, China
| | - Rudi Appels
- AgriBio, Centre for AgriBioscience, Department of Economic Development, Jobs, Transport, and Resources, La Trobe University, Melbourne, VIC 3083, Australia
| | - Aili Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Long Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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115
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Lu N, Lu M, Liu P, Xu H, Qiu X, Hu S, Wu Y, Bai S, Wu J, Xue S. Fine Mapping a Broad-Spectrum Powdery Mildew Resistance Gene in Chinese Landrace Datoumai, PmDTM, and Its Relationship with Pm24. PLANT DISEASE 2020; 104:1709-1714. [PMID: 32289249 DOI: 10.1094/pdis-11-19-2431-re] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Powdery mildew, caused by the biotrophic fungal pathogen Blumeria graminis f. sp. tritici (Bgt), is a globally important wheat disease causing severe yield losses, and deployment of resistant varieties is the preferred choice for managing this disease. Chinese wheat landrace Datoumai was resistant to 22 of 23 Bgt isolates at the seedling stage. Genetic analysis based on the inoculation of Bgt isolate E09 on the F1, F2, and F2:3 populations derived from the cross Datoumai × Huixianhong revealed that the powdery mildew resistance of Datoumai is controlled by a single dominant gene, temporarily designated as PmDTM. Bulked segregant analysis and simple sequence repeat mapping with 200 F2 plants showed that PmDTM was located in the same genetic region as Pm24 on chromosome 1DS. To fine map PmDTM, 12 critical recombinants were identified from 1,192 F2 plants and delimited PmDTM to a 0.5-cM Xhnu58800 to Xhnu59000 interval covering 180.5 Kb (38,728,125 to 38,908,656 bp) on chromosome 1DS, and only one highly confident gene, TraesCS1D02G058900, was annotated within this region. TraesCS1D02G058900 encodes a receptor-like serine/threonine-protein kinase (STK), and a 6-bp deletion in exon 5 may confer the resistance to powdery mildew. Allele frequency analysis indicated that the STK allele with 6-bp deletion was only present in three landraces (Datoumai, Chiyacao [Pm24], and Hulutou) and was absent in all of the 353 Chinese modern cultivars and 147 foreign cultivars. These results demonstrate that PmDTM is mapped to the same locus as Pm24 and can be widely used to enhance powdery mildew resistance in wheat growing regions worldwide.
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Affiliation(s)
- Nan Lu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
- Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Centre, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Mingxue Lu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Pan Liu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Hongxing Xu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Xiaolong Qiu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Shanshan Hu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Yanan Wu
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Shenglong Bai
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
| | - Jizhong Wu
- Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, China
| | - Shulin Xue
- State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China
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116
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Liu CM. The war between wheat and Fusarum: fighting with an alien weapon. SCIENCE CHINA-LIFE SCIENCES 2020; 63:1425-1427. [PMID: 32447539 DOI: 10.1007/s11427-020-1724-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 05/07/2020] [Indexed: 10/24/2022]
Affiliation(s)
- Chun-Ming Liu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China. .,Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
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117
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Paudel B, Zhuang Y, Galla A, Dahal S, Qiu Y, Ma A, Raihan T, Yen Y. WFhb1-1 plays an important role in resistance against Fusarium head blight in wheat. Sci Rep 2020; 10:7794. [PMID: 32385328 PMCID: PMC7210279 DOI: 10.1038/s41598-020-64777-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 04/17/2020] [Indexed: 01/14/2023] Open
Abstract
Fusarium head blight (FHB) is a severe disease of wheat (Triticum aestivum L.). Qfhb1 is the most important quantitative trait locus (QTL) for FHB resistance. We previously identified wheat gene WFhb1-1 (aka WFhb1-c1) as a candidate for FHB resistance gene. Here we report that WFhb1-1 has been cloned. The gene (GenBank # KU304333.1) consists of a single exon, encoding a putative membrane protein of 127 amino acids. WFhb1-1 protein produced in Pichia pastoris inhibits growth of both F. graminearum and P. pastoris in culture. Western Blotting with anti- WFhb1-1 antibody revealed a significant decrease (p < 0.01) in WFhb1-1 accumulation, 12 hours post Fusarium inoculation in non-Qfhb1-carrier wheat but not in Qfhb1-carrier wheat. Overexpressing WFhb1-1 in non-Qfhb1-carrier wheat led to a significant decrease (p < 0.01) in Fusarium-damaged rachis rate, Fusarium-diseased kernel rate and DON content in harvested kernels, while silencing WFhb1-1 in Qfhb1-carrier wheat resulted in a significant increase (p < 0.01) in FHB severity. Therefore, WFhb1-1 is an important FHB resistance gene with a potential antifungal function and probably a key functional component of Qfhb1 in wheat. A model regarding how WFhb1-1 functions in FHB resistance/susceptibility is hypothesized and discussed.
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Affiliation(s)
- Bimal Paudel
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Yongbin Zhuang
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.,College of Agronomy, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - Aravind Galla
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.,Department of Entomology, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Subha Dahal
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.,Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Yinjie Qiu
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.,Department of Horticultural Science, University of Minnesota, St. Paul, MN, 55108, USA
| | - Anjun Ma
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.,Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Tajbir Raihan
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Yang Yen
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.
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118
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Ma Z, Xie Q, Li G, Jia H, Zhou J, Kong Z, Li N, Yuan Y. Germplasms, genetics and genomics for better control of disastrous wheat Fusarium head blight. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1541-1568. [PMID: 31900498 DOI: 10.1007/s00122-019-03525-8] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 12/23/2019] [Indexed: 05/20/2023]
Abstract
Fusarium head blight (FHB), or scab, for its devastating nature to wheat production and food security, has stimulated worldwide attention. Multidisciplinary efforts have been made to fight against FHB for a long time, but the great progress has been achieved only in the genomics era of the past 20 years, particularly in the areas of resistance gene/QTL discovery, resistance mechanism elucidation and molecular breeding for better resistance. This review includes the following nine main sections, (1) FHB incidence, epidemic and impact, (2) causal Fusarium species, distribution and virulence, (3) types of host resistance to FHB, (4) germplasm exploitation for FHB resistance, (5) genetic control of FHB resistance, (6) fine mapping of Fhb1, Fhb2, Fhb4 and Fhb5, (7) cloning of Fhb1, (8) omics-based gene discovery and resistance mechanism study and (9) breeding for better FHB resistance. The advancements that have been made are outstanding and exciting; however, judged by the complicated nature of resistance to hemi-biotrophic pathogens like Fusarium species and lack of immune germplasm, it is still a long way to go to overcome FHB.
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Affiliation(s)
- Zhengqiang Ma
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| | - Quan Xie
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Guoqiang Li
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Haiyan Jia
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Jiyang Zhou
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Zhongxin Kong
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Na Li
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Yang Yuan
- Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, China
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119
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Rasheed A, Takumi S, Hassan MA, Imtiaz M, Ali M, Morgunov AI, Mahmood T, He Z. Appraisal of wheat genomics for gene discovery and breeding applications: a special emphasis on advances in Asia. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1503-1520. [PMID: 31897516 DOI: 10.1007/s00122-019-03523-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/23/2019] [Indexed: 06/10/2023]
Abstract
We discussed the most recent efforts in wheat functional genomics to discover new genes and their deployment in breeding with special emphasis on advances in Asian countries. Wheat research community is making significant progress to bridge genotype-to-phenotype gap and then applying this knowledge in genetic improvement. The advances in genomics and phenomics have intrigued wheat researchers in Asia to make best use of this knowledge in gene and trait discovery. These advancements include, but not limited to, map-based gene cloning, translational genomics, gene mapping, association genetics, gene editing and genomic selection. We reviewed more than 57 homeologous genes discovered underpinning important traits and multiple strategies used for their discovery. Further, the complementary advancements in wheat phenomics and analytical approaches to understand the genetics of wheat adaptability, resilience to climate extremes and resistance to pest and diseases were discussed. The challenge to build a gold standard reference genome sequence of bread wheat is now achieved and several de novo reference sequences from the cultivars representing different gene pools will be available soon. New pan-genome sequencing resources of wheat will strengthen the foundation required for accelerated gene discovery and provide more opportunities to practice the knowledge-based breeding.
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Affiliation(s)
- Awais Rasheed
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China.
- International Maize and Wheat Improvement Center (CIMMYT), CAAS, 12 Zhongguancun South Street, Beijing, 100081, China.
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Shigeo Takumi
- Graduate School of Agricultural Science, Kobe University, Rokkodai 1-1, Nada, Kobe, 657-8501, Japan
| | - Muhammad Adeel Hassan
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Muhammad Imtiaz
- International Maize and Wheat Improvement Center (CIMMYT) Pakistan office, c/o National Agriculture Research Center (NARC), Islamabad, Pakistan
| | - Mohsin Ali
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
| | - Alex I Morgunov
- International Maize and Wheat Improvement Center (CIMMYT), Yenimahalle, Ankara, 06170, Turkey
| | - Tariq Mahmood
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Zhonghu He
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China
- International Maize and Wheat Improvement Center (CIMMYT), CAAS, 12 Zhongguancun South Street, Beijing, 100081, China
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Wang K, Gong Q, Ye X. Recent developments and applications of genetic transformation and genome editing technologies in wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1603-1622. [PMID: 31654081 DOI: 10.1007/s00122-019-03464-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/19/2019] [Indexed: 05/24/2023]
Abstract
Wheat (Triticum aestivum) is a staple crop across the world and plays a remarkable role in food supplying security. Over the past few decades, basic and applied research on wheat has lagged behind other cereal crops due to the complex and polyploid genome and difficulties in genetic transformation. A breakthrough called as PureWheat was made in the genetic transformation of wheat in 2014 in Asia, leading to a noticeable progress of wheat genome editing. Due to this great achievement, it is predicated that wheat biotechnology revolution is arriving. Genome editing technologies using zinc finger nucleases, transcription activator-like effector nuclease, and clustered regularly interspaced short palindromic repeats-associated endonucleases (CRISR/Cas) are becoming powerful tools for crop modification which can help biologists and biotechnologists better understand the processes of mutagenesis and genomic alteration. Among the three genome editing systems, CRISR/Cas has high specificity and activity, and therefore it is widely used in genetic engineering. Generally, the genome editing technologies depend on an efficient genetic transformation system. In this paper, we summarize recent progresses and applications on genetic transformation and genome editing in wheat. We also examine the future aspects of genetic transformation and genome editing. We believe that the technologies for wheat efficient genetic engineering and functional studies will become routine with the emergence of high-quality genomic sequences.
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Affiliation(s)
- Ke Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qiang Gong
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xingguo Ye
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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121
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Li W, Deng Y, Ning Y, He Z, Wang GL. Exploiting Broad-Spectrum Disease Resistance in Crops: From Molecular Dissection to Breeding. ANNUAL REVIEW OF PLANT BIOLOGY 2020; 71:575-603. [PMID: 32197052 DOI: 10.1146/annurev-arplant-010720-022215] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Plant diseases reduce crop yields and threaten global food security, making the selection of disease-resistant cultivars a major goal of crop breeding. Broad-spectrum resistance (BSR) is a desirable trait because it confers resistance against more than one pathogen species or against the majority of races or strains of the same pathogen. Many BSR genes have been cloned in plants and have been found to encode pattern recognition receptors, nucleotide-binding and leucine-rich repeat receptors, and defense-signaling and pathogenesis-related proteins. In addition, the BSR genes that underlie quantitative trait loci, loss of susceptibility and nonhost resistance have been characterized. Here, we comprehensively review the advances made in the identification and characterization of BSR genes in various species and examine their application in crop breeding. We also discuss the challenges and their solutions for the use of BSR genes in the breeding of disease-resistant crops.
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Affiliation(s)
- Wei Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
| | - Yiwen Deng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China;
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zuhua He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China;
| | - Guo-Liang Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Department of Plant Pathology, The Ohio State University, Columbus, Ohio 43210, USA;
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122
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Wang H, Sun S, Ge W, Zhao L, Hou B, Wang K, Lyu Z, Chen L, Xu S, Guo J, Li M, Su P, Li X, Wang G, Bo C, Fang X, Zhuang W, Cheng X, Wu J, Dong L, Chen W, Li W, Xiao G, Zhao J, Hao Y, Xu Y, Gao Y, Liu W, Liu Y, Yin H, Li J, Li X, Zhao Y, Wang X, Ni F, Ma X, Li A, Xu SS, Bai G, Nevo E, Gao C, Ohm H, Kong L. Horizontal gene transfer of Fhb7 from fungus underlies Fusarium head blight resistance in wheat. Science 2020; 368:science.aba5435. [PMID: 32273397 DOI: 10.1126/science.aba5435] [Citation(s) in RCA: 304] [Impact Index Per Article: 76.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/26/2020] [Indexed: 12/22/2022]
Abstract
Fusarium head blight (FHB), a fungal disease caused by Fusarium species that produce food toxins, currently devastates wheat production worldwide, yet few resistance resources have been discovered in wheat germplasm. Here, we cloned the FHB resistance gene Fhb7 by assembling the genome of Thinopyrum elongatum, a species used in wheat distant hybridization breeding. Fhb7 encodes a glutathione S-transferase (GST) and confers broad resistance to Fusarium species by detoxifying trichothecenes through de-epoxidation. Fhb7 GST homologs are absent in plants, and our evidence supports that Th. elongatum has gained Fhb7 through horizontal gene transfer (HGT) from an endophytic Epichloë species. Fhb7 introgressions in wheat confers resistance to both FHB and crown rot in diverse wheat backgrounds without yield penalty, providing a solution for Fusarium resistance breeding.
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Affiliation(s)
- Hongwei Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
| | - Silong Sun
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wenyang Ge
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Lanfei Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Bingqian Hou
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Kai Wang
- Novogene Bioinformatics Institute, Beijing 100083, PR China
| | - Zhongfan Lyu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Liyang Chen
- Novogene Bioinformatics Institute, Beijing 100083, PR China
| | - Shoushen Xu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jun Guo
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, PR China
| | - Min Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Peisen Su
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xuefeng Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Guiping Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Cunyao Bo
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiaojian Fang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wenwen Zhuang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xinxin Cheng
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jianwen Wu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Luhao Dong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wuying Chen
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wen Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Guilian Xiao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jinxiao Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yongchao Hao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Ying Xu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yu Gao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wenjing Liu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yanhe Liu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Huayan Yin
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, PR China
| | - Xiang Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yan Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiaoqian Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Fei Ni
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xin Ma
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Anfei Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Steven S Xu
- USDA-ARS, Cereal Crops Research Unit, Edward T. Schafer Agricultural Research Center, Fargo, ND 58102, USA
| | - Guihua Bai
- USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA
| | - Eviatar Nevo
- Institute of Evolution, University of Haifa, Mount Carmel, Haifa 3498838, Israel
| | - Caixia Gao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Herbert Ohm
- Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Lingrang Kong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
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Jia M, Xu H, Liu C, Mao R, Li H, Liu J, Du W, Wang W, Zhang X, Han R, Wang X, Wu L, Liang X, Song J, He H, Ma P. Characterization of the Powdery Mildew Resistance Gene in the Elite Wheat Cultivar Jimai 23 and Its Application in Marker-Assisted Selection. Front Genet 2020; 11:241. [PMID: 32300355 PMCID: PMC7142250 DOI: 10.3389/fgene.2020.00241] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/28/2020] [Indexed: 01/17/2023] Open
Abstract
Powdery mildew infection of wheat (Triticum aestivum L.), caused by Blumeria graminis f. sp. tritici (Bgt), is a destructive disease that threatens yield and quality worldwide. The most effective and preferred means for the control of the disease is to identify broad-spectrum resistance genes for breeding, especially the genes derived from elite cultivars that exhibit desirable agronomic traits. Jimai 23 is a Chinese wheat cultivar with superior agronomic performance, high-quality characteristics, and effective resistance to powdery mildew at all growth stages. Genetic analysis indicated that powdery mildew resistance in Jimai 23 was mediated by a single dominant gene, tentatively designated PmJM23. Using bulked segregant RNA-Seq (BSR-Seq), a series of markers was developed and used to map PmJM23. PmJM23 was then located at the Pm2 locus on the short arm of chromosome 5D (5DS). Resistance spectrum analysis demonstrated that PmJM23 provided a broad resistance spectrum different from that of the documented Pm2 alleles, indicating that PmJM23 is most likely a new allele of Pm2. In view of these combined agronomic, quality, and resistance findings, PmJM23 is expected to be a valuable resistance gene in wheat breeding. To efficiently use PmJM23 in breeding, the closely linked markers of PmJM23 were evaluated and confirmed to be applicable for marker-assisted selection (MAS). Using these markers, a series of resistant breeding lines with high resistance and desirable agronomic performance was selected from the crosses involving PmJM23, resulting in improved powdery mildew resistance of these lines.
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Affiliation(s)
- Mengshu Jia
- School of Life Sciences, Yantai University, Yantai, China
| | - Hongxing Xu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
| | - Cheng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Ruixi Mao
- Shandong Seed Administration Station, Jinan, China
| | - Haosheng Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jianjun Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Wenxiao Du
- School of Life Sciences, Yantai University, Yantai, China
| | - Wenrui Wang
- School of Life Sciences, Yantai University, Yantai, China
| | - Xu Zhang
- School of Life Sciences, Yantai University, Yantai, China
| | - Ran Han
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xiaolu Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Liru Wu
- School of Life Sciences, Yantai University, Yantai, China
| | - Xiao Liang
- School of Life Sciences, Yantai University, Yantai, China
| | - Jiancheng Song
- School of Life Sciences, Yantai University, Yantai, China
| | - Huagang He
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Pengtao Ma
- School of Life Sciences, Yantai University, Yantai, China
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Brauer EK, Balcerzak M, Rocheleau H, Leung W, Schernthaner J, Subramaniam R, Ouellet T. Genome Editing of a Deoxynivalenol-Induced Transcription Factor Confers Resistance to Fusarium graminearum in Wheat. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2020; 33:553-560. [PMID: 31790345 DOI: 10.1094/mpmi-11-19-0332-r] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Deoxynivalenol (DON) is a mycotoxin virulence factor that promotes growth of the Fusarium graminearum fungus in wheat floral tissues. To further our understanding of the effects of DON exposure on plant cell function, we characterized DON-induced transcriptional changes in wheat spikelets. Four hundred wheat genes were differentially expressed during infection with wild-type F. graminearum as compared with a Δtri5 mutant strain that is unable to produce DON. Most of these genes were more induced by the DON-producing strain and included genes involved in secondary metabolism, signaling, transport, and stress responses. DON induction was confirmed for a subset of the genes, including TaNFXL1, by treating tissues with DON directly. Previous work indicates that the NFXL1 ortholog represses trichothecene-induced defense responses and bacterial resistance in Arabidopsis, but the role of the NFXL family has not been studied in wheat. We observed greater DON-induced TaNFXL1 gene expression in a susceptible wheat genotype relative to the F. graminearum-resistant genotype Wuhan 1. Functional testing using both virus-induced gene silencing and CRISPR-mediated genome editing indicated that TaNFXL1 represses F. graminearum resistance. Together, this suggests that targeting the TaNFXL1 gene may help to develop disease resistance in cultivated wheat.
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Affiliation(s)
- Elizabeth K Brauer
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Margaret Balcerzak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Hélène Rocheleau
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Winnie Leung
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Johann Schernthaner
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Rajagopal Subramaniam
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Thérèse Ouellet
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
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125
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Zhu Z, Chen L, Zhang W, Yang L, Zhu W, Li J, Liu Y, Tong H, Fu L, Liu J, Rasheed A, Xia X, He Z, Hao Y, Gao C. Genome-Wide Association Analysis of Fusarium Head Blight Resistance in Chinese Elite Wheat Lines. FRONTIERS IN PLANT SCIENCE 2020; 11:206. [PMID: 32174947 PMCID: PMC7056811 DOI: 10.3389/fpls.2020.00206] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 02/11/2020] [Indexed: 05/03/2023]
Abstract
Fusarium head blight (FHB) is a devastating wheat disease worldwide. To decipher the genetic architecture of FHB resistance in Chinese germplasm, a Wheat Association Panel for Scab Research (WAPS) consisting of 240 leading Chinese wheat cultivars and elite lines was genotyped using the 90K single nucleotide polymorphism (SNP) arrays. The FHB response was evaluated in the field nurseries in Wuhan in Hubei Province over four consecutive years from 2014 to 2017. Five quantitative trait loci (QTL) were consistently identified on chromosome arms 1AS, 2DL, 5AS, 5AL, and 7DS using a mixed linear model (MLM), explaining 5.6, 10.3, 5.7, 5.4, and 5.6% of phenotypic variation, respectively. The QTL on 5AS, 5AL, and 7DS QTL are probably novel. The allelic frequency analysis indicated that cultivars from the Middle and Lower Yangtze River Valleys harbored more favorable alleles and were therefore more resistant than those from other regions. To facilitate in-house germplasm screening and marker-assisted selection (MAS), SNP-derived PCR markers were developed for the QTL regions on 1AS, 5AS, and 5AL QTL. In addition to the above five QTL, the WAPS population had a very low frequency of Fhb1, confirming that the gene is not widely used in Chinese wheat breeding programs. The resistant lines and molecular markers developed in this study are resources and information for enhancing FHB resistance in breeding populations by marker-assisted recurrent selection and gene stacking.
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Affiliation(s)
- Zhanwang Zhu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Ling Chen
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
| | - Wei Zhang
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - Lijun Yang
- Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Weiwei Zhu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
| | - Junhui Li
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
| | - Yike Liu
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
| | - Hanwen Tong
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
| | - Luping Fu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Jindong Liu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Awais Rasheed
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
- CIMMYT-China Office, Beijing, China
| | - Xianchun Xia
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Zhonghu He
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
- CIMMYT-China Office, Beijing, China
| | - Yuanfeng Hao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Chunbao Gao
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences/Hubei Engineering and Technology Research Center of Wheat/Wheat Disease Biology Research Station for Central China, Wuhan, China
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, China
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126
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Overexpression of Nepenthesin HvNEP-1 in Barley Endosperm Reduces Fusarium Head Blight and Mycotoxin Accumulation. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10020203] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fusarium head blight (FHB) causes substantial losses of yield and quality in grains, both in the field and in post-harvest storage. To date, adequate natural genetic resistance is not available for the control of FHB. This study reports the cloning and overexpression of a barley (Hordeum vulgare L.) antifungal gene, nepenthesin 1 (HvNEP-1), in the endosperm of barley grains. Transgenic barley lines overexpressing HvNEP-1 substantially reduced FHB severity and disease progression after inoculation with Fusarium graminearum or Fusarium culmorum. The transgenic barley also showed reduced accumulation of the mycotoxin deoxynivalenol (DON) in grain, far below the minimum value allowable for food. Semi-field evaluation of four HvNEP-1 transgenic lines revealed substantial reduction of FHB severity and progression as compared with the control H. vulgare cultivar Golden promise (GP) plants. Our study demonstrated the utility of HvNEP-1 for the control of FHB in barley, and possibly other grains such as wheat and maize.
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127
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Hu W, Gao D, Wu H, Liu J, Zhang C, Wang J, Jiang Z, Liu Y, Li D, Zhang Y, Lu C. Genome-wide association mapping revealed syntenic loci QFhb-4AL and QFhb-5DL for Fusarium head blight resistance in common wheat (Triticum aestivum L.). BMC PLANT BIOLOGY 2020; 20:29. [PMID: 31959107 PMCID: PMC6971946 DOI: 10.1186/s12870-019-2177-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/29/2019] [Indexed: 05/05/2023]
Abstract
BACKGROUND Fusarium head blight (FHB), primarily caused by Fusarium graminearum, is a major threat to wheat production and food security worldwide. Breeding stably and durably resistant cultivars is the most effective approach for managing and controlling the disease. The success of FHB resistance breeding relies on identification of an effective resistant germplasm. We conducted a genome-wide association study (GWAS) using the high-density wheat 90 K single nucleotide polymorphism (SNP) assays to better understand the genetic basis of FHB resistance in natural population and identify associated molecular markers. RESULTS The resistance to FHB fungal spread along the rachis (Type II resistance) was evaluated on 171 wheat cultivars in the 2016-2017 (abbr. as 2017) and 2017-2018 (abbr. as 2018) growing seasons. Using Illumina Infinum iSelect 90 K SNP genotyping data, a genome-wide association study (GWAS) identified 26 loci (88 marker-trait associations), which explained 6.65-14.18% of the phenotypic variances. The associated loci distributed across all chromosomes except 2D, 6A, 6D and 7D, with those on chromosomes 1B, 4A, 5D and 7A being detected in both years. New loci for Type II resistance were found on syntenic genomic regions of chromsome 4AL (QFhb-4AL, 621.85-622.24 Mb) and chromosome 5DL (QFhb-5DL, 546.09-547.27 Mb) which showed high collinearity in gene content and order. SNP markers wsnp_JD_c4438_5568170 and wsnp_CAP11_c209_198467 of 5D, reported previously linked to a soil-borne wheat mosaic virus (SBWMV) resistance gene, were also associated with FHB resistance in this study. CONCLUSION The syntenic FHB resistant loci and associated SNP markers identified in this study are valuable for FHB resistance breeding via marker-assisted selection.
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Affiliation(s)
- Wenjing Hu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
- Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, 45002, Henan, China
| | - Derong Gao
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
| | - Hongya Wu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
| | - Jian Liu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Chunmei Zhang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
| | - Junchan Wang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Zhengning Jiang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Yeyu Liu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Dongsheng Li
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China
| | - Yong Zhang
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China.
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China.
| | - Chengbin Lu
- Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou, 225007, China.
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley, Ministry of Agriculture and Rural Affairs, Yangzhou, China.
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China.
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Hao Y, Rasheed A, Zhu Z, Wulff BBH, He Z. Harnessing Wheat Fhb1 for Fusarium Resistance. TRENDS IN PLANT SCIENCE 2020; 25:1-3. [PMID: 31679993 DOI: 10.1016/j.tplants.2019.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/30/2019] [Accepted: 10/10/2019] [Indexed: 05/20/2023]
Abstract
Fusarium head blight (FHB), caused by the fungus Fusarium graminearum, is an economically devastating disease of wheat worldwide. Fhb1, a widely used genetic source of FHB resistance, originated in East Asia. The recent cloning of Fhb1 opens a new avenue to improve FHB resistance in wheat and potentially other crops.
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Affiliation(s)
- Yuanfeng Hao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing 100081, China
| | - Awais Rasheed
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing 100081, China; International Maize and Wheat Improvement Centre (CIMMYT), c/o CAAS, 12 Zhongguancun South Street, Beijing 100081, China; Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Zhanwang Zhu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing 100081, China
| | | | - Zhonghu He
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing 100081, China; International Maize and Wheat Improvement Centre (CIMMYT), c/o CAAS, 12 Zhongguancun South Street, Beijing 100081, China.
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130
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Ruan Y, Zhang W, Knox RE, Berraies S, Campbell HL, Ragupathy R, Boyle K, Polley B, Henriquez MA, Burt A, Kumar S, Cuthbert RD, Fobert PR, Buerstmayr H, DePauw RM. Characterization of the Genetic Architecture for Fusarium Head Blight Resistance in Durum Wheat: The Complex Association of Resistance, Flowering Time, and Height Genes. FRONTIERS IN PLANT SCIENCE 2020; 11:592064. [PMID: 33424887 PMCID: PMC7786293 DOI: 10.3389/fpls.2020.592064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/30/2020] [Indexed: 05/22/2023]
Abstract
Durum wheat is an economically important crop for Canadian farmers. Fusarium head blight (FHB) is one of the most destructive diseases that threatens durum production in Canada. FHB reduces yield and end-use quality and most commonly contaminates the grain with the fungal mycotoxin deoxynivalenol, also known as DON. Serious outbreaks of FHB can occur in durum wheat in Canada, and combining genetic resistance with fungicide application is a cost effective approach to control this disease. However, there is limited variation for genetic resistance to FHB in elite Canadian durum cultivars. To explore and identify useful genetic FHB resistance variation for the improvement of Canadian durum wheat, we assembled an association mapping (AM) panel of diverse durum germplasms and performed genome wide association analysis (GWAS). Thirty-one quantitative trait loci (QTL) across all 14 chromosomes were significantly associated with FHB resistance. On 3BS, a stable QTL with a larger effect for resistance was located close to the centromere of 3BS. Three haplotypes of Fhb1 QTL were identified, with an emmer wheat haplotype contributing to disease susceptibility. The large number of QTL identified here can provide a rich resource to improve FHB resistance in commercially grown durum wheat. Among the 31 QTL most were associated with plant height and/or flower time. QTL 1A.1, 1A.2, 3B.2, 5A.1, 6A.1, 7A.3 were associated with FHB resistance and not associated or only weakly associated with flowering time nor plant height. These QTL have features that would make them good targets for FHB resistance breeding.
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Affiliation(s)
- Yuefeng Ruan
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Wentao Zhang
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, SK, Canada
- *Correspondence: Wentao Zhang,
| | - Ron E. Knox
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Samia Berraies
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Heather L. Campbell
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Raja Ragupathy
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - Kerry Boyle
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, SK, Canada
| | - Brittany Polley
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, SK, Canada
| | - Maria Antonia Henriquez
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, Canada
| | - Andrew Burt
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada
| | - Santosh Kumar
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB, Canada
| | - Richard D. Cuthbert
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Pierre R. Fobert
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Ottawa, ON, Canada
| | | | - Ron M. DePauw
- Advancing Wheat Technology, Swift Current, SK, Canada
- Retired from Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
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131
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Słomińska-Durdasiak KM, Kollers S, Korzun V, Nowara D, Schweizer P, Djamei A, Reif JC. Association mapping of wheat Fusarium head blight resistance-related regions using a candidate-gene approach and their verification in a biparental population. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:341-351. [PMID: 31646363 DOI: 10.1007/s00122-019-03463-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 10/17/2019] [Indexed: 06/10/2023]
Abstract
Markers, located in Dicer1 and Ara6 genes, which are likely involved in cross-kingdom RNA trafficking, are associated with FHB resistance in GABI wheat population and were validated in biparental population. Association studies are a common approach to detect marker-trait associations for Fusarium head blight (FHB) resistance in wheat (Triticum aestivum), although verification of detected associations is exceptional. In the present study, candidate-gene association mapping (CG) of genes from silencing and secretory pathways, which may be involved in wheat resistance against FHB and cross-kingdom RNA trafficking, was performed. Fourteen markers, located in nine genes, were tested for association with FHB resistance in 356 lines from the GABI (genome analysis of the biological system of plants) wheat population. Three markers located in the genes Dicer1 and Ara6 were shown to be significantly associated with the studied trait. Verification of this finding was performed using the recombinant inbred lines (RILs) population 'Apache × Biscay', segregating for four of our 14 selected markers. We could show association of the Ara6 marker with plant height as well as association with FHB resistance for three markers located in Rab5-like GTPase gene Ara6 and Dicer1. These results confirmed the trait-marker associations detected also in the CG approach. Gene products of the associated genes are involved in response of the plant to pathogens, plant metabolism and may be involved in cross-kingdom RNA trafficking efficiency. The markers detected in the GABI wheat population, which were also validated in the biparental population, can potentially be used in wheat breeding.
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Affiliation(s)
- Karolina Maria Słomińska-Durdasiak
- Department of Breeding Research, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, 06466, Gatersleben, Germany.
| | - Sonja Kollers
- KWS LOCHOW GmbH, Ferdinand-von-Lochow-Straße 5, 29303, Bergen, Germany
| | - Viktor Korzun
- KWS LOCHOW GmbH, Ferdinand-von-Lochow-Straße 5, 29303, Bergen, Germany
| | - Daniela Nowara
- Department of Breeding Research, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, 06466, Gatersleben, Germany
| | - Patrick Schweizer
- Department of Breeding Research, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, 06466, Gatersleben, Germany
| | - Armin Djamei
- Department of Breeding Research, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, 06466, Gatersleben, Germany
| | - Jochen Christoph Reif
- Department of Breeding Research, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, 06466, Gatersleben, Germany
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Fauteux F, Wang Y, Rocheleau H, Liu Z, Pan Y, Fedak G, McCartney C, Ouellet T. Characterization of QTL and eQTL controlling early Fusarium graminearum infection and deoxynivalenol levels in a Wuhan 1 x Nyubai doubled haploid wheat population. BMC PLANT BIOLOGY 2019; 19:536. [PMID: 31795937 PMCID: PMC6892237 DOI: 10.1186/s12870-019-2149-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 11/19/2019] [Indexed: 05/28/2023]
Abstract
BACKGROUND Fusarium head blight (FHB) is a major disease of cereal crops, caused by the fungal pathogen Fusarium graminearum and related species. Breeding wheat for FHB resistance contributes to increase yields and grain quality and to reduce the use of fungicides. The identification of genes and markers for FHB resistance in different wheat genotypes has nevertheless proven challenging. RESULTS In this study, early infection by F. graminearum was analyzed in a doubled haploid population derived from the cross of the moderately resistant wheat genotypes Wuhan 1 and Nyubai. Three quantitative trait loci (QTL) were identified: 1AL was associated with lower deoxynivalenol content, and 4BS and 5A were associated with reduced F. graminearum infection at 2 days post inoculation. Early resistance alleles were inherited from Wuhan 1 for QTL 1AL and 4BS and inherited from Nyubai for the 5A QTL. Cis and trans expression QTL (eQTL) were identified using RNA-seq data from infected head samples. Hotspots for trans eQTL were identified in the vicinity of the 1AL and 4BS QTL peaks. Among differentially expressed genes with cis eQTL within the QTL support intervals, nine genes had higher expression associated with FHB early resistance, and four genes had higher expression associated with FHB early susceptibility. CONCLUSIONS Our analysis of genotype and gene expression data of wheat infected by F. graminearum identified three QTL associated with FHB early resistance, and linked genes with eQTL and differential expression patterns to those QTL. These findings may have applications in breeding wheat for early resistance to FHB.
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Affiliation(s)
- François Fauteux
- Digital Technologies Research Centre, National Research Council Canada, Ottawa, Ontario Canada
| | - Yunli Wang
- Digital Technologies Research Centre, National Research Council Canada, Ottawa, Ontario Canada
| | - Hélène Rocheleau
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario Canada
| | - Ziying Liu
- Digital Technologies Research Centre, National Research Council Canada, Ottawa, Ontario Canada
| | - Youlian Pan
- Digital Technologies Research Centre, National Research Council Canada, Ottawa, Ontario Canada
| | - George Fedak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario Canada
| | - Curt McCartney
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, Manitoba Canada
| | - Thérèse Ouellet
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario Canada
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Zhu Z, Hao Y, Mergoum M, Bai G, Humphreys G, Cloutier S, Xia X, He Z. Breeding wheat for resistance to Fusarium head blight in the Global North: China, USA, and Canada. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.cj.2019.06.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Foroud NA, Baines D, Gagkaeva TY, Thakor N, Badea A, Steiner B, Bürstmayr M, Bürstmayr H. Trichothecenes in Cereal Grains - An Update. Toxins (Basel) 2019; 11:E634. [PMID: 31683661 PMCID: PMC6891312 DOI: 10.3390/toxins11110634] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 01/01/2023] Open
Abstract
Trichothecenes are sesquiterpenoid mycotoxins produced by fungi from the order Hypocreales, including members of the Fusarium genus that infect cereal grain crops. Different trichothecene-producing Fusarium species and strains have different trichothecene chemotypes belonging to the Type A and B class. These fungi cause a disease of small grain cereals, called Fusarium head blight, and their toxins contaminate host tissues. As potent inhibitors of eukaryotic protein synthesis, trichothecenes pose a health risk to human and animal consumers of infected cereal grains. In 2009, Foroud and Eudes published a review of trichothecenes in cereal grains for human consumption. As an update to this review, the work herein provides a comprehensive and multi-disciplinary review of the Fusarium trichothecenes covering topics in chemistry and biochemistry, pathogen biology, trichothecene toxicity, molecular mechanisms of resistance or detoxification, genetics of resistance and breeding strategies to reduce their contamination of wheat and barley.
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Affiliation(s)
- Nora A Foroud
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB T1J 4B1, Canada.
| | - Danica Baines
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB T1J 4B1, Canada.
| | - Tatiana Y Gagkaeva
- Laboratory of Mycology and Phytopathology, All-Russian Institute of Plant Protection (VIZR), St. Petersburg, Pushkin 196608, Russia.
| | - Nehal Thakor
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada.
| | - Ana Badea
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB R7A 5Y3, Canada.
| | - Barbara Steiner
- Department of Agrobiotechnology (IFA-Tulln), Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln 3430, Austria.
| | - Maria Bürstmayr
- Department of Agrobiotechnology (IFA-Tulln), Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln 3430, Austria.
| | - Hermann Bürstmayr
- Department of Agrobiotechnology (IFA-Tulln), Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln 3430, Austria.
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135
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Doppler M, Kluger B, Bueschl C, Steiner B, Buerstmayr H, Lemmens M, Krska R, Adam G, Schuhmacher R. Stable Isotope-Assisted Plant Metabolomics: Investigation of Phenylalanine-Related Metabolic Response in Wheat Upon Treatment With the Fusarium Virulence Factor Deoxynivalenol. FRONTIERS IN PLANT SCIENCE 2019; 10:1137. [PMID: 31736983 PMCID: PMC6831647 DOI: 10.3389/fpls.2019.01137] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/20/2019] [Indexed: 05/03/2023]
Abstract
The major Fusarium mycotoxin deoxynivalenol (DON) is a virulence factor in wheat and has also been shown to induce defense responses in host plant tissue. In this study, global and tracer labeling with 13C were combined to annotate the overall metabolome of wheat spikes and to evaluate the response of phenylalanine-related pathways upon treatment with DON. At anthesis, spikes of resistant and susceptible cultivars as well as two related near isogenic wheat lines (NILs) differing in the presence/absence of the major resistance QTL Fhb1 were treated with 1 mg DON or water (control), and samples were collected at 0, 12, 24, 48, and 96 h after treatment (hat). A total of 172 Phe-derived wheat constituents were detected with our untargeted approach employing 13C-labeled phenylalanine and subsequently annotated as flavonoids, lignans, coumarins, benzoic acid derivatives, hydroxycinnamic acid amides (HCAAs), as well as peptides. Ninety-six hours after the DON treatment, up to 30% of the metabolites biosynthesized from Phe showed significantly increased levels compared to the control samples. Major metabolic changes included the formation of precursors of compounds implicated in cell wall reinforcement and presumed antifungal compounds. In addition, also dipeptides, which presumably are products of proteolytic degradation of truncated proteins generated in the presence of the toxin, were significantly more abundant upon DON treatment. An in-depth comparison of the two NILs with correlation clustering of time course profiles revealed some 70 DON-responsive Phe derivatives. While several flavonoids had constitutively different abundance levels between the two NILs differing in resistance, other Phe-derived metabolites such as HCAAs and hydroxycinnamoyl quinates were affected differently in the two NILs after treatment with DON. Our results suggest a strong activation of the general phenylpropanoid pathway and that coumaroyl-CoA is mainly diverted towards HCAAs in the presence of Fhb1, whereas the metabolic route to monolignol(-conjugates), lignans, and lignin seems to be favored in the absence of the Fhb1 resistance quantitative trait loci.
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Affiliation(s)
- Maria Doppler
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Bernhard Kluger
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Christoph Bueschl
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Barbara Steiner
- Department of Agrobiotechnology (IFA-Tulln), Institute for Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Hermann Buerstmayr
- Department of Agrobiotechnology (IFA-Tulln), Institute for Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Marc Lemmens
- Department of Agrobiotechnology (IFA-Tulln), Institute for Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Rudolf Krska
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
- School of Biological Sciences, Institute for Global Food Security, Queen’s University Belfast, Belfast, United Kingdom
| | - Gerhard Adam
- Department of Applied Genetics and Cell Biology (DAGZ), University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
| | - Rainer Schuhmacher
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln, Austria
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136
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Zhang YZ, Chen Q, Liu CH, Lei L, Li Y, Zhao K, Wei MQ, Guo ZR, Wang Y, Xu BJ, Jiang YF, Kong L, Liu YL, Lan XJ, Jiang QT, Ma J, Wang JR, Chen GY, Wei YM, Zheng YL, Qi PF. Fusarium graminearum FgCWM1 Encodes a Cell Wall Mannoprotein Conferring Sensitivity to Salicylic Acid and Virulence to Wheat. Toxins (Basel) 2019; 11:toxins11110628. [PMID: 31671876 PMCID: PMC6891299 DOI: 10.3390/toxins11110628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 11/30/2022] Open
Abstract
Fusarium graminearum causes Fusarium head blight (FHB), a devastating disease of wheat. Salicylic acid (SA) is involved in the resistance of wheat to F. graminearum. Cell wall mannoprotein (CWM) is known to trigger defense responses in plants, but its role in the pathogenicity of F. graminearum remains unclear. Here, we characterized FgCWM1 (FG05_11315), encoding a CWM in F. graminearum. FgCWM1 was highly expressed in wheat spikes by 24 h after initial inoculation and was upregulated by SA. Disruption of FgCWM1 (ΔFgCWM1) reduced mannose and protein accumulation in the fungal cell wall, especially under SA treatment, and resulted in defective fungal cell walls, leading to increased fungal sensitivity to SA. The positive role of FgCWM1 in mannose and protein accumulation was confirmed by its expression in Saccharomyces cerevisiae. Compared with wild type (WT), ΔFgCWM1 exhibited reduced pathogenicity toward wheat, but it produced the same amount of deoxynivalenol both in culture and in spikes. Complementation of ΔFgCWM1 with FgCWM1 restored the WT phenotype. Localization analyses revealed that FgCWM1 was distributed on the cell wall, consistent with its structural role. Thus, FgCWM1 encodes a CWM protein that plays an important role in the cell wall integrity and pathogenicity of F. graminearum.
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Affiliation(s)
- Ya-Zhou Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Qing Chen
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Cai-Hong Liu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Lu Lei
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yang Li
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Kan Zhao
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Mei-Qiao Wei
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Zhen-Ru Guo
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yan Wang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Bin-Jie Xu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yun-Feng Jiang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Li Kong
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yan-Lin Liu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Xiu-Jin Lan
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Qian-Tao Jiang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Jian Ma
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Ji-Rui Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Guo-Yue Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Yu-Ming Wei
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - You-Liang Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Peng-Fei Qi
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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