1
|
Meng D, Dong X, He X, Pan R, Sun M, Chu Y, Tong Z, Yi X, Fan H, Gao T, Duan J. Effects of wheat varieties, fungicides and application time on Fusarium head blight and deoxynivalenol contamination control in wheat. PEST MANAGEMENT SCIENCE 2023; 79:4784-4794. [PMID: 37471098 DOI: 10.1002/ps.7674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 06/11/2023] [Accepted: 07/18/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Yield loss and toxin contamination caused by wheat Fusarium head blight (FHB) have always been a worldwide concern. Cultivating disease-resistant varieties and fungicide application are effective measures to control FHB. The comprehensive control technology system for FHB and toxin contamination of wheat in Anhui Province needs further improvement. This study compared the control efficacy of different wheat varieties, fungicides and application times on wheat FHB and deoxynivalenol (DON) contamination, and the dynamic change of DON accumulation after application. RESULTS Among the 93 main wheat varieties in Anhui Province, the disease-resistant and low-toxic wheat variety "Ningmai 26" was more suitable for planting in the central part of Anhui Province. At the same time, "Yangmai 22" was used for subsequent experiments. The field efficacy trials of different fungicides showed that 30% prothioconazole oil dispersion (OD) had the highest control efficacy on FHB and DON contamination, reaching 94.33 and 77.49%, respectively. The study on the optimum application time of prothioconazole showed that the 0-20% flowering stage was the key point of DON control. The survey of the dynamic changes of DON accumulation showed that prothioconazole could significantly reduce the level of DON accumulation while inhibiting the accumulation rate of DON. At the same time, the control fungicide carbendazim increased the level of DON contamination. CONCLUSION This study will provide excellent germplasm resources for cultivating disease-resistant and low-toxic wheat varieties, and provide a theoretical reference for establishing a collaborative prevention and control system of disease control and toxin reduction. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- DanDan Meng
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - Xu Dong
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - XianFang He
- Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Rui Pan
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
| | - MingNa Sun
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - Yue Chu
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - Zhou Tong
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - XiaoTong Yi
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - Hui Fan
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - TongChun Gao
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| | - JinSheng Duan
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei, China
| |
Collapse
|
2
|
Sharma D, Kumari A, Sharma P, Singh A, Sharma A, Mir ZA, Kumar U, Jan S, Parthiban M, Mir RR, Bhati P, Pradhan AK, Yadav A, Mishra DC, Budhlakoti N, Yadav MC, Gaikwad KB, Singh AK, Singh GP, Kumar S. Meta-QTL analysis in wheat: progress, challenges and opportunities. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:247. [PMID: 37975911 DOI: 10.1007/s00122-023-04490-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023]
Abstract
Wheat, an important cereal crop globally, faces major challenges due to increasing global population and changing climates. The production and productivity are challenged by several biotic and abiotic stresses. There is also a pressing demand to enhance grain yield and quality/nutrition to ensure global food and nutritional security. To address these multifaceted concerns, researchers have conducted numerous meta-QTL (MQTL) studies in wheat, resulting in the identification of candidate genes that govern these complex quantitative traits. MQTL analysis has successfully unraveled the complex genetic architecture of polygenic quantitative traits in wheat. Candidate genes associated with stress adaptation have been pinpointed for abiotic and biotic traits, facilitating targeted breeding efforts to enhance stress tolerance. Furthermore, high-confidence candidate genes (CGs) and flanking markers to MQTLs will help in marker-assisted breeding programs aimed at enhancing stress tolerance, yield, quality and nutrition. Functional analysis of these CGs can enhance our understanding of intricate trait-related genetics. The discovery of orthologous MQTLs shared between wheat and other crops sheds light on common evolutionary pathways governing these traits. Breeders can leverage the most promising MQTLs and CGs associated with multiple traits to develop superior next-generation wheat cultivars with improved trait performance. This review provides a comprehensive overview of MQTL analysis in wheat, highlighting progress, challenges, validation methods and future opportunities in wheat genetics and breeding, contributing to global food security and sustainable agriculture.
Collapse
Affiliation(s)
- Divya Sharma
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Anita Kumari
- Department of Botany, University of Delhi, Delhi, India
| | - Priya Sharma
- Department of Botany, University of Delhi, Delhi, India
| | - Anupma Singh
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Anshu Sharma
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Zahoor Ahmad Mir
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Uttam Kumar
- Borlaug Institute for South Asia (BISA), Ludhiana, India
| | - Sofora Jan
- Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Srinagar, Kashmir, India
| | - M Parthiban
- Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Srinagar, Kashmir, India
| | - Reyazul Rouf Mir
- Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Srinagar, Kashmir, India
| | - Pradeep Bhati
- Borlaug Institute for South Asia (BISA), Ludhiana, India
| | - Anjan Kumar Pradhan
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Aakash Yadav
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | | | - Neeraj Budhlakoti
- ICAR- Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Mahesh C Yadav
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | - Kiran B Gaikwad
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Amit Kumar Singh
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
| | | | - Sundeep Kumar
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India.
| |
Collapse
|
3
|
Haile JK, Sertse D, N’Diaye A, Klymiuk V, Wiebe K, Ruan Y, Chawla HS, Henriquez MA, Wang L, Kutcher HR, Steiner B, Buerstmayr H, Pozniak CJ. Multi-locus genome-wide association studies reveal the genetic architecture of Fusarium head blight resistance in durum wheat. FRONTIERS IN PLANT SCIENCE 2023; 14:1182548. [PMID: 37900749 PMCID: PMC10601657 DOI: 10.3389/fpls.2023.1182548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 09/18/2023] [Indexed: 10/31/2023]
Abstract
Durum wheat is more susceptible to Fusarium head blight (FHB) than other types or classes of wheat. The disease is one of the most devastating in wheat; it reduces yield and end-use quality and contaminates the grain with fungal mycotoxins such as deoxynivalenol (DON). A panel of 265 Canadian and European durum wheat cultivars, as well as breeding and experimental lines, were tested in artificially inoculated field environments (2019-2022, inclusive) and two greenhouse trials (2019 and 2020). The trials were assessed for FHB severity and incidence, visual rating index, Fusarium-damaged kernels, DON accumulation, anthesis or heading date, maturity date, and plant height. In addition, yellow pigment and protein content were analyzed for the 2020 field season. To capture loci underlying FHB resistance and related traits, GWAS was performed using single-locus and several multi-locus models, employing 13,504 SNPs. Thirty-one QTL significantly associated with one or more FHB-related traits were identified, of which nine were consistent across environments and associated with multiple FHB-related traits. Although many of the QTL were identified in regions previously reported to affect FHB, the QTL QFhb-3B.2, associated with FHB severity, incidence, and DON accumulation, appears to be novel. We developed KASP markers for six FHB-associated QTL that were consistently detected across multiple environments and validated them on the Global Durum Panel (GDP). Analysis of allelic diversity and the frequencies of these revealed that the lines in the GDP harbor between zero and six resistance alleles. This study provides a comprehensive assessment of the genetic basis of FHB resistance and DON accumulation in durum wheat. Accessions with multiple favorable alleles were identified and will be useful genetic resources to improve FHB resistance in durum breeding programs through marker-assisted recurrent selection and gene stacking.
Collapse
Affiliation(s)
- Jemanesh K. Haile
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Demissew Sertse
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, SK, Canada
| | - Amidou N’Diaye
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Valentyna Klymiuk
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Krystalee Wiebe
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Yuefeng Ruan
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Harmeet S. Chawla
- Department of Plant Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Maria-Antonia Henriquez
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, Canada
| | - Lipu Wang
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Hadley R. Kutcher
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Barbara Steiner
- Department of Agrobiotechnology, Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences Vienna, Tulln, Austria
| | - Hermann Buerstmayr
- Department of Agrobiotechnology, Institute of Biotechnology in Plant Production, University of Natural Resources and Life Sciences Vienna, Tulln, Austria
| | - Curtis J. Pozniak
- Department of Plant Sciences, Crop Development Centre, University of Saskatchewan, Saskatoon, SK, Canada
| |
Collapse
|
4
|
Hay WT, Anderson JA, Garvin DF, McCormick SP, Busman M, Vaughan MM. Elevated CO 2 Can Worsen Fusarium Head Blight Disease Severity in Wheat but the Fhb1 QTL Provides Reliable Disease Resistance. PLANTS (BASEL, SWITZERLAND) 2023; 12:3527. [PMID: 37895995 PMCID: PMC10610529 DOI: 10.3390/plants12203527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/03/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023]
Abstract
Fusarium head blight (FHB) is a destructive fungal disease of wheat that causes significant economic loss due to lower yields and the contamination of grain with fungal toxins (mycotoxins), particularly deoxynivalenol (DON). FHB disease spread and mycotoxin contamination has been shown to worsen at elevated CO2, therefore, it is important to identify climate-resilient FHB resistance. This work evaluates whether wheat with the Fhb1 quantitative trait locus (QTL), the most widely deployed FHB resistance locus in wheat breeding programs, provides reliable disease resistance at elevated CO2. Near-isogenic wheat lines (NILs) derived from either a highly FHB susceptible or a more FHB resistant genetic background, with or without the Fhb1 QTL, were grown in growth chambers at ambient (400 ppm) and elevated (1000 ppm) CO2 conditions. Wheat was inoculated with Fusarium graminearum and evaluated for FHB severity. At elevated CO2, the NILs derived from more FHB-resistant wheat had increased disease spread, greater pathogen biomass and mycotoxin contamination, and lower rates of DON detoxification; this was not observed in wheat from a FHB susceptible genetic background. The Fhb1 QTL was not associated with increased disease severity in wheat grown at elevated CO2 and provided reliable disease resistance.
Collapse
Affiliation(s)
- William T. Hay
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit, 1815 N, University Street, Peoria, IL 61604, USA; (S.P.M.); (M.B.); (M.M.V.)
| | - James A. Anderson
- Department of Agronomy & Plant Genetics, University of Minnesota, St. Paul, MN 55108, USA; (J.A.A.); (D.F.G.)
| | - David F. Garvin
- Department of Agronomy & Plant Genetics, University of Minnesota, St. Paul, MN 55108, USA; (J.A.A.); (D.F.G.)
| | - Susan P. McCormick
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit, 1815 N, University Street, Peoria, IL 61604, USA; (S.P.M.); (M.B.); (M.M.V.)
| | - Mark Busman
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit, 1815 N, University Street, Peoria, IL 61604, USA; (S.P.M.); (M.B.); (M.M.V.)
| | - Martha M. Vaughan
- USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, Mycotoxin Prevention and Applied Microbiology Research Unit, 1815 N, University Street, Peoria, IL 61604, USA; (S.P.M.); (M.B.); (M.M.V.)
| |
Collapse
|
5
|
Cabral AL, Ruan Y, Cuthbert RD, Li L, Zhang W, Boyle K, Berraies S, Henriquez MA, Burt A, Kumar S, Fobert P, Piche I, Bokore FE, Meyer B, Sangha J, Knox RE. Multi-locus genome-wide association study of fusarium head blight in relation to days to anthesis and plant height in a spring wheat association panel. FRONTIERS IN PLANT SCIENCE 2023; 14:1166282. [PMID: 37457352 PMCID: PMC10346453 DOI: 10.3389/fpls.2023.1166282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/03/2023] [Indexed: 07/18/2023]
Abstract
Fusarium head blight (FHB) is a highly destructive fungal disease of wheat to which host resistance is quantitatively inherited and largely influenced by the environment. Resistance to FHB has been associated with taller height and later maturity; however, a further understanding of these relationships is needed. An association mapping panel (AMP) of 192 predominantly Canadian spring wheat was genotyped with the wheat 90K single-nucleotide polymorphism (SNP) array. The AMP was assessed for FHB incidence (INC), severity (SEV) and index (IND), days to anthesis (DTA), and plant height (PLHT) between 2015 and 2017 at three Canadian FHB-inoculated nurseries. Seven multi-environment trial (MET) datasets were deployed in a genome-wide association study (GWAS) using a single-locus mixed linear model (MLM) and a multi-locus random SNP-effect mixed linear model (mrMLM). MLM detected four quantitative trait nucleotides (QTNs) for INC on chromosomes 2D and 3D and for SEV and IND on chromosome 3B. Further, mrMLM identified 291 QTNs: 50 (INC), 72 (SEV), 90 (IND), 41 (DTA), and 38 (PLHT). At two or more environments, 17 QTNs for FHB, DTA, and PLHT were detected. Of these 17, 12 QTNs were pleiotropic for FHB traits, DTA, and PLHT on chromosomes 1A, 1D, 2D, 3B, 5A, 6B, 7A, and 7B; two QTNs for DTA were detected on chromosomes 1B and 7A; and three PLHT QTNs were located on chromosomes 4B and 6B. The 1B DTA QTN and the three pleiotropic QTNs on chromosomes 1A, 3B, and 6B are potentially identical to corresponding quantitative trait loci (QTLs) in durum wheat. Further, the 3B pleiotropic QTN for FHB INC, SEV, and IND co-locates with TraesCS3B02G024900 within the Fhb1 region on chromosome 3B and is ~3 Mb from a cloned Fhb1 candidate gene TaHRC. While the PLHT QTN on chromosome 6B is putatively novel, the 1B DTA QTN co-locates with a disease resistance protein located ~10 Mb from a Flowering Locus T1-like gene TaFT3-B1, and the 7A DTA QTN is ~5 Mb away from a maturity QTL QMat.dms-7A.3 of another study. GWAS and QTN candidate genes enabled the characterization of FHB resistance in relation to DTA and PLHT. This approach should eventually generate additional and reliable trait-specific markers for breeding selection, in addition to providing useful information for FHB trait discovery.
Collapse
Affiliation(s)
- Adrian L. Cabral
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Yuefeng Ruan
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Richard D. Cuthbert
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Lin Li
- 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
| | - Kerry Boyle
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Saskatoon, SK, Canada
| | - Samia Berraies
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, 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
| | - Pierre Fobert
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Ottawa, ON, Canada
| | - Isabelle Piche
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Firdissa E. Bokore
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Brad Meyer
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Jatinder Sangha
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Ron E. Knox
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| |
Collapse
|
6
|
Li G, Yuan Y, Zhou J, Cheng R, Chen R, Luo X, Shi J, Wang H, Xu B, Duan Y, Zhong J, Wang X, Kong Z, Jia H, Ma Z. FHB resistance conferred by Fhb1 is under inhibitory regulation of two genetic loci in wheat (Triticum aestivum L.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:134. [PMID: 37217699 DOI: 10.1007/s00122-023-04380-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/05/2023] [Indexed: 05/24/2023]
Abstract
KEY MESSAGE Two loci inhibiting Fhb1 resistance to Fusarium head blight were identified through genome-wide association mapping and validated in biparental populations. Fhb1 confers Fusarium head blight (FHB) resistance by limiting fungal spread within spikes in wheat (type II resistance). However, not all lines with Fhb1 display the expected resistance. To identify genetic factors regulating Fhb1 effect, a genome-wide association study for type II resistance was first performed with 72 Fhb1-carrying lines using the Illumina 90 K iSelect SNP chip. Of 84 significant marker-trait associations detected, more than half were repeatedly detected in at least two environments, with the SNPs distributed in one region on chromosome 5B and one on chromosome 6A. This result was validated in a collection of 111 lines with Fhb1 and 301 lines without Fhb1. We found that these two loci caused significant resistance variations solely among lines with Fhb1 by compromising the resistance. In1, the inhibitory gene on chromosome 5B, was in close linkage with Xwgrb3860 in a recombinant inbred line population derived from Nanda2419 × Wangshuibai and a double haploid (DH) population derived from R-43 (Fhb1 near isogenic line) × Biansui7 (with Fhb1 and In1); and In2, the inhibitory gene on chromosome 6A, was mapped to the Xwgrb4113-Xwgrb4034 interval using a DH population derived from R-43 × PH8901 (with Fhb1 and In2). In1 and In2 are present in all wheat-growing areas worldwide. Their frequencies in China's modern cultivars are high but have significantly decreased in comparison with landraces. These findings are of great significance for FHB resistance breeding using Fhb1.
Collapse
Affiliation(s)
- Guoqiang Li
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China.
| | - Yang Yuan
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Jiyang Zhou
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- College of Life Science and Technology, Xinjiang University, Urumqi, 830046, Xinjiang, China
| | - Rui Cheng
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Ruitong Chen
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Xianmin Luo
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Jinxing Shi
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Heyu Wang
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Boyang Xu
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Youyu Duan
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Jinkun Zhong
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Xin Wang
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Zhongxin Kong
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Haiyan Jia
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China.
| | - Zhengqiang Ma
- The Applied Plant Genomics Laboratory, Crop Genomics and Bioinformatics Center and National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agricultural Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
- Zhongshan Biological Breeding Laboratory, No.50 Zhongling Street, Nanjing, 210014, Jiangsu, China.
| |
Collapse
|
7
|
Mir ZA, Chandra T, Saharan A, Budhlakoti N, Mishra DC, Saharan MS, Mir RR, Singh AK, Sharma S, Vikas VK, Kumar S. Recent advances on genome-wide association studies (GWAS) and genomic selection (GS); prospects for Fusarium head blight research in Durum wheat. Mol Biol Rep 2023; 50:3885-3901. [PMID: 36826681 DOI: 10.1007/s11033-023-08309-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/26/2023] [Indexed: 02/25/2023]
Abstract
PURPOSE Wheat is an important cereal crop that is cultivated in different parts of the world. The biotic stresses are the major concerns in wheat-growing nations and are responsible for production loss globally. The change in climate dynamics makes the pathogen more virulent in foothills and tropical regions. There is growing concern about FHB in major wheat-growing nations, and until now, there has been no known potential source of resistance identified in wheat germplasm. The plant pathogen interaction activates the cascade of pathways, genes, TFs, and resistance genes. Pathogenesis-related genes' role in disease resistance is functionally validated in different plant systems. Similarly, Genomewide association Studies (GWAS) and Genomic selection (GS) are promising tools and have led to the discovery of resistance genes, genomic regions, and novel markers. Fusarium graminearum produces deoxynivalenol (DON) mycotoxins in wheat kernels, affecting wheat productivity globally. Modern technology now allows for detecting and managing DON toxin to reduce the risk to humans and animals. This review offers a comprehensive overview of the roles played by GWAS and Genomic selection (GS) in the identification of new genes, genetic variants, molecular markers and DON toxin management strategies. METHODS The review offers a comprehensive and in-depth analysis of the function of Fusarium graminearum virulence factors in Durum wheat. The role of GWAS and GS for Fusarium Head Blight (FHB) resistance has been well described. This paper provides a comprehensive description of the various statistical models that are used in GWAS and GS. In this review, we look at how different detection methods have been used to analyze and manage DON toxin exposure. RESULTS This review highlights the role of virulent genes in Fusarium disease establishment. The role of genome-based selection offers the identification of novel QTLs in resistant wheat germplasm. The role of GWAS and GS selection has minimized the use of population development through breeding technology. Here, we also emphasized the function of recent technological developments in minimizing the impact of DON toxins and their implications for food safety.
Collapse
Affiliation(s)
- Zahoor Ahmad Mir
- ICAR-National Bureau of Plant Genetic Resources, New Delhi, 110012, India
| | - Tilak Chandra
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, 110012, India
| | - Anurag Saharan
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Neeraj Budhlakoti
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, 110012, India
| | - D C Mishra
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, 110012, India
| | - M S Saharan
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Reyazul Rouf Mir
- Division of Genetics and Plant Breeding, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-Kashmir), Srinagar, Jammu Kashmir, 190025, India
| | - Amit Kumar Singh
- ICAR-National Bureau of Plant Genetic Resources, New Delhi, 110012, India
| | - Soumya Sharma
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, 110012, India
| | - V K Vikas
- ICAR- Indian Agricultural Research Institute, Regional Station, Wellington, The Nilgiris, Tamilnadu, 643231, India.
| | - Sundeep Kumar
- ICAR-National Bureau of Plant Genetic Resources, New Delhi, 110012, India.
| |
Collapse
|
8
|
Hay WT, Anderson JA, Garvin DF, McCormick SP, Vaughan MM. Fhb1 disease resistance QTL does not exacerbate wheat grain protein loss at elevated CO 2. FRONTIERS IN PLANT SCIENCE 2022; 13:1034406. [PMID: 36518513 PMCID: PMC9742602 DOI: 10.3389/fpls.2022.1034406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/11/2022] [Indexed: 06/17/2023]
Abstract
Fusarium head blight, a devastating cereal crop disease, can cause significant yield losses and contaminate grain with hazardous fungal toxins. Concerningly, recent evidence indicates that substantial grain protein content loss is likely to occur in wheat that is moderately resistant to head blight when it is grown at elevated CO2. Although wheat breeders in North America utilize a number of resistance sources and genes to reduce pathogen damage, the Fhb1 gene is widely deployed. To determine whether Fhb1 is associated with the protein content loss at elevated CO2, twelve near-isogenic spring wheat lines from either a susceptible or moderately susceptible genetic background, and with, or without the Fhb1 QTL, were grown at ambient and elevated CO2 conditions. The near-isogenic lines were evaluated for differences in physiology, productivity, and grain protein content. Our results showed that the Fhb1 QTL did not have any significant effect on plant growth, development, yield, or grain protein content at ambient or elevated CO2. Therefore, other factors in the moderately susceptible wheat genetic background are likely responsible for the more severe grain protein loss at elevated CO2.
Collapse
Affiliation(s)
- William T. Hay
- Mycotoxin Prevention and Applied Microbiology Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, USDA, Peoria, IL, United States
| | - James A. Anderson
- Department of Agronomy & Plant Genetics, University of Minnesota, St. Paul, MN, United States
| | - David F. Garvin
- Department of Agronomy & Plant Genetics, University of Minnesota, St. Paul, MN, United States
| | - Susan P. McCormick
- Mycotoxin Prevention and Applied Microbiology Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, USDA, Peoria, IL, United States
| | - Martha M. Vaughan
- Mycotoxin Prevention and Applied Microbiology Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, USDA, Peoria, IL, United States
| |
Collapse
|
9
|
Evaluation of Fusarium Head Blight Resistance Effects by Haplotype-Based Genome-Wide Association Study in Winter Wheat Lines Derived by Marker Backcrossing Approach. Int J Mol Sci 2022; 23:ijms232214233. [PMID: 36430711 PMCID: PMC9695032 DOI: 10.3390/ijms232214233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/09/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
Fusarium head blight (FHB) of wheat caused by Fusarium species is a destructive disease, causing grain yield and quality losses. Developing FHB-resistant cultivars is crucial to minimize the extent of the disease. The first objective of this study was incorporation of Fhb1 from a resistant donor into five Polish wheat breeding lines with good agronomical traits and different origins. We also performed a haplotype-based GWAS to identify chromosome regions in derived wheat families associated with Fusarium head blight resistance. As a result of marker-assisted backcrossing (MABC), five wheat combinations were obtained. Fungal inoculation and disease assessment were conducted for two years, 2019 and 2020. In 2019 the average phenotypic response of type II resistance was 2.2, whereas in 2020 it was 2.1. A haploblock-based GWAS performed on 10 phenotypic traits (related to type of resistance, year of experiment and FHB index) revealed nine marker-trait associations (MTA), among which six belong to chromosome 2D, two to 3B and one to 7D. Phenotypic variation (R2) explained by the identified haplotypes in haploblocks ranged from 6% to 49%. Additionally, an association weight matrix (AWM) was created, giving the partial correlation-information theory (PCIT) pipeline of 171 edges and 19 nodes. The resultant data and high level of explained phenotypic variance of MTA create the opportunity for data utilization in MAS.
Collapse
|
10
|
Wu L, He X, He Y, Jiang P, Xu K, Zhang X, Singh PK. Genetic sources and loci for Fusarium head blight resistance in bread wheat. Front Genet 2022; 13:988264. [PMID: 36246592 PMCID: PMC9561102 DOI: 10.3389/fgene.2022.988264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022] Open
Abstract
Fusarium head blight (FHB) of wheat is an important disease worldwide, affecting the yield, end-use quality and threatening food safety. Genetic resources or stable loci for FHB resistance are still limited in breeding programs. A panel of 265 bread wheat accessions from China, CIMMYT-Mexico and other countries was screened for FHB resistance under 5 field experiments in Mexico and China, and a genome-wide association analysis was performed to identify QTLs associated with FHB resistance. The major locus Fhb1 was significantly associated with FHB severity and Deoxynivalenol content in grains. FHB screening experiments in multiple environments showed that Fhb1-harbouring accessions Sumai3, Sumai5, Ningmai9, Yangmai18 and Tokai66 had low FHB index, disease severity and DON content in grains in response to different Fusarium species and ecological conditions in Mexico and China. Accessions Klein Don Enrique, Chuko and Yumai34 did not have Fhb1 but still showed good FHB resistance and low mycotoxin accumulation. Sixteen loci associated with FHB resistance or DON content in grains were identified on chromosomes 1A, 1B, 2B, 3A, 3D, 4B, 4D, 5A, 5B, 7A, and 7B in multiple environments, explaining phenotypic variation of 4.43–10.49%. The sources with good FHB resistance reported here could be used in breeding programs for resistance improvement in Mexico and China, and the significant loci could be further studied and introgressed for resistance improvement against FHB and mycotoxin accumulation in grains.
Collapse
Affiliation(s)
- Lei Wu
- CIMMYT-JAAS Joint Center for Wheat Diseases, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Xinyao He
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Yi He
- CIMMYT-JAAS Joint Center for Wheat Diseases, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Peng Jiang
- CIMMYT-JAAS Joint Center for Wheat Diseases, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Kaijie Xu
- Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Xu Zhang
- CIMMYT-JAAS Joint Center for Wheat Diseases, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- *Correspondence: Xu Zhang, ; Pawan K. Singh,
| | - Pawan K. Singh
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
- *Correspondence: Xu Zhang, ; Pawan K. Singh,
| |
Collapse
|
11
|
Nannuru VKR, Windju SS, Belova T, Dieseth JA, Alsheikh M, Dong Y, McCartney CA, Henriques MA, Buerstmayr H, Michel S, Meuwissen THE, Lillemo M. Genetic architecture of fusarium head blight disease resistance and associated traits in Nordic spring wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:2247-2263. [PMID: 35597885 PMCID: PMC9271104 DOI: 10.1007/s00122-022-04109-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/19/2022] [Indexed: 05/05/2023]
Abstract
This study identified a significant number of QTL that are associated with FHB disease resistance in NMBU spring wheat panel by conducting genome-wide association study. Fusarium head blight (FHB) is a widely known devastating disease of wheat caused by Fusarium graminearum and other Fusarium species. FHB resistance is quantitative, highly complex and divided into several resistance types. Quantitative trait loci (QTL) that are effective against several of the resistance types give valuable contributions to resistance breeding. A spring wheat panel of 300 cultivars and breeding lines of Nordic and exotic origins was tested in artificially inoculated field trials and subjected to visual FHB assessment in the years 2013-2015, 2019 and 2020. Deoxynivalenol (DON) content was measured on harvested grain samples, and anther extrusion (AE) was assessed in separate trials. Principal component analysis based on 35 and 25 K SNP arrays revealed the existence of two subgroups, dividing the panel into European and exotic lines. We employed a genome-wide association study to detect QTL associated with FHB traits and identify marker-trait associations that consistently influenced FHB resistance. A total of thirteen QTL were identified showing consistent effects across FHB resistance traits and environments. Haplotype analysis revealed a highly significant QTL on 7A, Qfhb.nmbu.7A.2, which was further validated on an independent set of breeding lines. Breeder-friendly KASP markers were developed for this QTL that can be used in marker-assisted selection. The lines in the wheat panel harbored from zero to five resistance alleles, and allele stacking showed that resistance can be significantly increased by combining several of these resistance alleles. This information enhances breeders´ possibilities for genomic prediction and to breed cultivars with improved FHB resistance.
Collapse
Affiliation(s)
| | | | - Tatiana Belova
- Centre for Molecular Medicine Norway, Faculty of Medicine, University of Oslo, 0318, Blindern, Norway
| | | | | | - Yanhong Dong
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, 55108, USA
| | - Curt A McCartney
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, Canada
- Department of Plant Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Maria Antonia Henriques
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, Canada
| | - Hermann Buerstmayr
- Institute of Biotechnology in Plant Production, Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430, Tulln, Austria
| | - Sebastian Michel
- Institute of Biotechnology in Plant Production, Department of Agrobiotechnology, University of Natural Resources and Life Sciences Vienna, 3430, Tulln, Austria
| | - Theodorus H E Meuwissen
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, 1432, Ås, Norway
| | - Morten Lillemo
- Department of Plant Sciences, Norwegian University of Life Sciences, 1432, Ås, Norway.
| |
Collapse
|
12
|
Zheng N, Li G, Zhang K, Zheng H, Yang J, Yan K, Shi C, Su Z, Chen F, Wang D, Zheng H. Analysis of Fhb1 gene and resistance to Fusarium head blight in 3,177 diverse wheat accessions. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2021.103387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
13
|
Zhao P, Gu S, Han C, Lu Y, Ma C, Tian J, Bi J, Deng Z, Wang Q, Xu Q. Targeted and Untargeted Metabolomics Profiling of Wheat Reveals Amino Acids Increase Resistance to Fusarium Head Blight. FRONTIERS IN PLANT SCIENCE 2021; 12:762605. [PMID: 34868158 PMCID: PMC8639535 DOI: 10.3389/fpls.2021.762605] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/12/2021] [Indexed: 05/05/2023]
Abstract
Fusarium head blight (FHB), a notorious plant disease caused by Fusarium graminearum (F. graminearum), is severely harmful to wheat production, resulting in a decline in grain quality and yield. In order to develop novel control strategies, metabolomics has been increasingly used to characterize more comprehensive profiles of the mechanisms of underlying plant-pathogen interactions. In this research, untargeted and targeted metabolomics were used to analyze the metabolite differences between two wheat varieties, the resistant genotype Sumai 3 and the susceptible genotype Shannong 20, after F. graminearum inoculation. The untargeted metabolomics results showed that differential amino acid metabolic pathways existed in Sumai 3 and Shannong 20 after F. graminearum infection. Additionally, some of the amino acid contents changed greatly in different cultivars when infected with F. graminearum. Exogenous application of amino acids and F. graminearum inoculation assay showed that proline (Pro) and alanine (Ala) increased wheat resistance to FHB, while cysteine (Cys) aggravated the susceptibility. This study provides an initial insight into the metabolite differences of two wheat cultivars under the stress of F. graminearum. Moreover, the method of optimization metabolite extraction presents an effective and feasible strategy to explore the understanding of the mechanisms involved in the FHB resistance.
Collapse
Affiliation(s)
- Peiying Zhao
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Shubo Gu
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Chao Han
- Shandong Province Key Laboratory of Agricultural Microbiology, Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Yaru Lu
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Chunyang Ma
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Jichun Tian
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Jianjie Bi
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Zhiying Deng
- College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Qunqing Wang
- Shandong Province Key Laboratory of Agricultural Microbiology, Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai'an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| | - Qian Xu
- College of Agronomy, Shandong Agricultural University, Tai'an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an, China
| |
Collapse
|
14
|
Evolution of Fusarium Head Blight Management in Wheat: Scientific Perspectives on Biological Control Agents and Crop Genotypes Protocooperation. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11198960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Over the past century, the economically devastating Fusarium Head Blight (FHB) disease has persistently ravished small grain cereal crops worldwide. Annually, losses globally are in the billions of United States dollars (USD), with common bread wheat and durum wheat accounting for a major portion of these losses. Since the unforgettable FHB epidemics of the 1990s and early 2000s in North America, different management strategies have been employed to treat this disease. However, even with some of the best practices including chemical fungicides and innovative breeding technological advances that have given rise to a spectrum of moderately resistant cultivars, FHB still remains an obstinate problem in cereal farms globally. This is in part due to several constraints such as the Fusarium complex of species and the struggle to develop and employ methods that can effectively combat more than one pathogenic line or species simultaneously. This review highlights the last 100 years of major FHB epidemics in the US and Canada, as well as the evolution of different management strategies, and recent progress in resistance and cultivar development. It also takes a look at protocooperation between specific biocontrol agents and cereal genotypes as a promising tool for combatting FHB.
Collapse
|
15
|
Chen S, Zhang Z, Sun Y, Li D, Gao D, Zhan K, Cheng S. Identification of quantitative trait loci for Fusarium head blight (FHB) resistance in the cross between wheat landrace N553 and elite cultivar Yangmai 13. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2021; 41:24. [PMID: 37309419 PMCID: PMC10236037 DOI: 10.1007/s11032-021-01220-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/28/2021] [Indexed: 06/14/2023]
Abstract
Fusarium head blight (FHB) of wheat poses a serious threat to food security in the Yellow-Huai River Valley Winter Wheat Region (YHW) of China. Discovery of new resistant quantitative trait loci (QTLs) or genes and application of them to highly susceptible varieties in the YHW are of great significance for ensuring the grain yield. Here, 160 recombinant inbred lines (RILs) from the cross between N553 (resistant) and Yangmai 13 (moderately susceptible) were used to evaluate FHB resistance by point inoculation, spray inoculation, and natural infection. A high-density genetic map was constructed by using a 15K SNP array and 128 polymorphism SSR markers. A total of 1452 polymorphic markers were identified, which formed 21 linkage groups and covered a total of 3555.1 cM in length. Two and four QTLs respectively related to type I and type II resistance were detected, among which QFhb-hnau.3BS.1 and QFhb-hnau.2DL were stably identified in most environments in Yangzhou and Zhengzhou, whereas QFhbn-hnau.5AL was only identified under natural infection in Jianyang. Based on the physical position (IWGSC RefSeq v1.0), QFhb-hnau.3BS.1 from the landrace N553 is likely to be Fhb1, while QFhb-hnau.2DL from Yangmai 13 may be a novel QTL. Significantly higher FHB resistance was observed in the lines with both QFhb-hnau.3BS.1 and QFhb-hnau.2DL, indicating that these two QTLs have apparent additive effects, and the RILs harboring both the two QTLs may have great application potential for the improvement of FHB resistance in wheat breeding. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-021-01220-5.
Collapse
Affiliation(s)
- Shulin Chen
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, 450002 China
| | - Ziliang Zhang
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, 450002 China
| | - Yangyang Sun
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, 450002 China
| | - Dongsheng Li
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley Ministry of Agriculture, Lixiahe Agricultural Institute of Jiangsu Province, Yangzhou, China
| | - Derong Gao
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley Ministry of Agriculture, Lixiahe Agricultural Institute of Jiangsu Province, Yangzhou, China
| | - Kehui Zhan
- College of Agronomy, Henan Agricultural University/Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, 450002 China
| | - Shunhe Cheng
- Key Laboratory of Wheat Biology and Genetic Improvement for Low & Middle Yangtze Valley Ministry of Agriculture, Lixiahe Agricultural Institute of Jiangsu Province, Yangzhou, China
| |
Collapse
|
16
|
Zhang W, Boyle K, Brûlé-Babel AL, Fedak G, Gao P, Robleh Djama Z, Polley B, Cuthbert RD, Randhawa HS, Jiang F, Eudes F, Fobert PR. Genetic Characterization of Multiple Components Contributing to Fusarium Head Blight Resistance of FL62R1, a Canadian Bread Wheat Developed Using Systemic Breeding. FRONTIERS IN PLANT SCIENCE 2020; 11:580833. [PMID: 33193525 PMCID: PMC7649146 DOI: 10.3389/fpls.2020.580833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/16/2020] [Indexed: 05/07/2023]
Abstract
Fusarium head blight (FHB) is a devastating fungal disease of small-grain cereals that results in severe yield and quality losses. FHB resistance is controlled by resistance components including incidence, field severity, visual rating index, Fusarium damaged kernels (FDKs), and the accumulation of the mycotoxin deoxynivalenol (DON). Resistance conferred by each of these components is partial and must be combined to achieve resistance sufficient to protect wheat from yield losses. In this study, two biparental mapping populations were analyzed in Canadian FHB nurseries and quantitative trait loci (QTL) mapped for the traits listed above. Nine genomic loci, on 2AS, 2BS, 3BS, 4AS, 4AL, 4BS, 5AS, 5AL, and 5BL, were enriched for the majority of the QTL controlling FHB resistance. The previously validated FHB resistance QTL on 3BS and 5AS affected resistance to severity, FDK, and DON in these populations. The remaining seven genomic loci colocalize with flowering time and/or plant height QTL. The QTL on 4B was a major contributor to all field resistance traits and plant height in the field. QTL on 4AL showed contrasting effects for FHB resistance between Eastern and Western Canada, indicating a local adapted resistance to FHB. In addition, we also found that the 2AS QTL contributed a major effect for DON, and the 2BS for FDK, while the 5AL conferred mainly effect for both FDK/DON. Results presented here provide insight into the genetic architecture underlying these resistant components and insight into how FHB resistance in wheat is controlled by a complex network of interactions between genes controlling flowering time, plant height, local adaption, and FHB resistance components.
Collapse
Affiliation(s)
- Wentao Zhang
- Aquatic and Crop Resources Development, National Research Council of Canada, Saskatoon, SK, Canada
| | - Kerry Boyle
- Aquatic and Crop Resources Development, National Research Council of Canada, Saskatoon, SK, Canada
| | | | - George Fedak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada
| | - Peng Gao
- Aquatic and Crop Resources Development, National Research Council of Canada, Saskatoon, SK, Canada
| | - Zeinab Robleh Djama
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada
- Aquatic and Crop Resources Development, National Research Council of Canada, Ottawa, ON, Canada
| | - Brittany Polley
- Aquatic and Crop Resources Development, National Research Council of Canada, Saskatoon, SK, Canada
| | - Richard D. Cuthbert
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - Harpinder S. Randhawa
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - Fengying Jiang
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - François Eudes
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - Pierre R. Fobert
- Aquatic and Crop Resources Development, National Research Council of Canada, Saskatoon, SK, Canada
- Aquatic and Crop Resources Development, National Research Council of Canada, Ottawa, ON, Canada
| |
Collapse
|
17
|
Thambugala D, Brûlé-Babel AL, Blackwell BA, Fedak G, Foster AJ, MacEachern D, Gilbert J, Henriquez MA, Martin RA, McCallum BD, Spaner D, Iqbal M, Pozniak CJ, N'Diaye A, McCartney CA. Genetic analyses of native Fusarium head blight resistance in two spring wheat populations identifies QTL near the B1, Ppd-D1, Rht-1, Vrn-1, Fhb1, Fhb2, and Fhb5 loci. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:2775-2796. [PMID: 32556394 DOI: 10.1007/s00122-020-03631-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
QTL analyses of two bi-parental mapping populations with AC Barrie as a parent revealed numerous FHB-resistance QTL unique to each population and uncovered novel variation near Fhb1. Fusarium head blight (FHB) is a destructive disease of wheat worldwide, leading to severe yield and quality losses. The genetic basis of native FHB resistance was examined in two populations: a recombinant inbred line population from the cross Cutler/AC Barrie and a doubled haploid (DH) population from the cross AC Barrie/Reeder. Numerous QTL were detected among the two mapping populations with many being cross-specific. Photoperiod insensitivity at Ppd-D1 and dwarfing at Rht-B1 and Rht-D1 was associated with increased FHB susceptibility. Anthesis date QTL at or near the Vrn-A1 and Vrn-B1 loci co-located with major FHB-resistance QTL in the AC Barrie/Reeder population. The loci were epistatic for both traits, such that DH lines with both late alleles were considerably later to anthesis and had reduced FHB symptoms (i.e., responsible for the epistatic interaction). Interestingly, AC Barrie contributed FHB resistance near the Fhb1 locus in the Cutler population and susceptibility in the Reeder population. Analyses of the Fhb1 candidate genes PFT and TaHRC confirmed that AC Barrie, Cutler, and Reeder do not carry the Sumai-3 Fhb1 gene. Resistance QTL were also detected at the expected locations of Fhb2 and Fhb5. The native FHB-resistance QTL detected near Fhb1, Fhb2, and Fhb5 do not appear to be as effective as Fhb1, Fhb2, and Fhb5 from Sumai-3. The presence of awns segregated at the B1 awn inhibitor locus in both populations, but was only associated with FHB resistance in the Cutler/AC Barrie population suggesting linkage caused the association rather than pleiotropy.
Collapse
Affiliation(s)
- Dinushika Thambugala
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, R6M 1Y5, Canada
| | - Anita L Brûlé-Babel
- Department of Plant Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Barbara A Blackwell
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, K1A 0C6, Canada
| | - George Fedak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, K1A 0C6, Canada
| | - Adam J Foster
- Charlottetown Research and Development Centre, Agriculture and Agri-Food Canada, Charlottetown, PEI, C1A 4N6, Canada
| | - Dan MacEachern
- Charlottetown Research and Development Centre, Agriculture and Agri-Food Canada, Charlottetown, PEI, C1A 4N6, Canada
| | - Jeannie Gilbert
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, R6M 1Y5, Canada
| | - Maria Antonia Henriquez
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, R6M 1Y5, Canada
| | - Richard A Martin
- Charlottetown Research and Development Centre, Agriculture and Agri-Food Canada, Charlottetown, PEI, C1A 4N6, Canada
| | - Brent D McCallum
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, R6M 1Y5, Canada
| | - Dean Spaner
- Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, AB, T6G 2P5, Canada
| | - Muhammad Iqbal
- Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, AB, T6G 2P5, Canada
| | - Curtis J Pozniak
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - Amidou N'Diaye
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - Curt A McCartney
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB, R6M 1Y5, Canada.
| |
Collapse
|
18
|
Carmack WJ, Clark A, Dong Y, Brown-Guedira G, Van Sanford D. Optical Sorter-Based Selection Effectively Identifies Soft Red Winter Wheat Breeding Lines With Fhb1 and Enhances FHB Resistance in Lines With and Without Fhb1. FRONTIERS IN PLANT SCIENCE 2020; 11:1318. [PMID: 32983207 PMCID: PMC7479218 DOI: 10.3389/fpls.2020.01318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
Previous results from our lab have shown that using an optical sorter to identify Fusarium head blight (FHB) resistant breeding lines was effective at reducing the toxin deoxynivalenol (DON) and FHB-associated kernel damage. In this paper we quantified the proportion of desirable genotypes at FHB resistance QTL in lines from three selection cycles of optical sorting. Breeding lines were genotyped at loci on chromosomes 3BS, 2DL, and 5A using the following DNA markers: TaHRC, CFD233, and GWM304. TaHRC is a KASP marker for Fhb1, a major FHB resistance QTL on chromosome 3BS. CFD233 is an SSR marker for Qfhs.nau-2DL on chromosome 2DL. GWM304 is an SSR marker for Qfhs.ifa-5A on chromosome 5A. Sorter selection was effective at identifying lines that had the resistant genotype at TaHRC; in other words, the sorter was able to identify lines with resistance alleles at Fhb1. The sorter was less effective at selecting for the resistant genotype at CFD233 and GWM304. However, the proportion of lines with resistant genotypes at GWM304 did increase with additional sorter selection, just not to the degree that was observed for the Fhb1-associated marker. The proportion of lines with resistant alleles at CFD233 did not show a consistent trend. In addition to increasing the proportion of lines with Fhb1 and Qfhs.ifa-5A each selection cycle, optical sorter-based mass selection enhanced FHB resistance in different marker genotype combinations evaluated in this study. For example, there were net reductions in DON and kernel damage after two cycles of sorter selection in 15X110601S07002, a line with Fhb1, with Qfhs.nau-2DL, and with Qfhs.ifa-5A; final C3 DON levels were 63% of the resistant check (KY02C-3005-25). Kernel damage was also reduced in 15X110601A08221 a line without Fhb1, without Qfhs.nau-2DL, and without Qfhs.ifa-5A. Our findings suggest the increased resistance observed in different marker genotype combinations was conferred by QTL other than Fhb1, QFhs.nau-2DL, and Qfhs.ifa-5, and validate our previous results that the optical sorter is effective at selecting FHB-resistant breeding material.
Collapse
Affiliation(s)
- W. Jesse Carmack
- Department of Plant and Soil Science, University of Kentucky, Lexington, KY, United States
| | - Anthony Clark
- Department of Plant and Soil Science, University of Kentucky, Lexington, KY, United States
| | - Yanhong Dong
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, United States
| | - Gina Brown-Guedira
- Plant Science Research Unit, USDA-Agricultural Research Service, Raleigh, NC, United States
| | - David Van Sanford
- Department of Plant and Soil Science, University of Kentucky, Lexington, KY, United States
| |
Collapse
|
19
|
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:ijms21124497. [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] [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.
Collapse
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;
- Correspondence: ; Tel.: +1-403-317-2238
| |
Collapse
|
20
|
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.
Collapse
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
| |
Collapse
|
21
|
Jaganathan D, Bohra A, Thudi M, Varshney RK. Fine mapping and gene cloning in the post-NGS era: advances and prospects. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1791-1810. [PMID: 32040676 PMCID: PMC7214393 DOI: 10.1007/s00122-020-03560-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 01/29/2020] [Indexed: 05/18/2023]
Abstract
Improvement in traits of agronomic importance is the top breeding priority of crop improvement programs. Majority of these agronomic traits show complex quantitative inheritance. Identification of quantitative trait loci (QTLs) followed by fine mapping QTLs and cloning of candidate genes/QTLs is central to trait analysis. Advances in genomic technologies revolutionized our understanding of genetics of complex traits, and genomic regions associated with traits were employed in marker-assisted breeding or cloning of QTLs/genes. Next-generation sequencing (NGS) technologies have enabled genome-wide methodologies for the development of ultra-high-density genetic linkage maps in different crops, thus allowing placement of candidate loci within few kbs in genomes. In this review, we compare the marker systems used for fine mapping and QTL cloning in the pre- and post-NGS era. We then discuss how different NGS platforms in combination with advanced experimental designs have improved trait analysis and fine mapping. We opine that efficient genotyping/sequencing assays may circumvent the need for cumbersome procedures that were earlier used for fine mapping. A deeper understanding of the trait architectures of agricultural significance will be crucial to accelerate crop improvement.
Collapse
Affiliation(s)
- Deepa Jaganathan
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
- Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University (TNAU), Coimbatore, India
| | - Abhishek Bohra
- Crop Improvement Division, ICAR-Indian Institute of Pulses Research (IIPR), Kanpur, India
| | - Mahendar Thudi
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India.
| | - Rajeev K Varshney
- Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India.
| |
Collapse
|
22
|
Khan MK, Pandey A, Athar T, Choudhary S, Deval R, Gezgin S, Hamurcu M, Topal A, Atmaca E, Santos PA, Omay MR, Suslu H, Gulcan K, Inanc M, Akkaya MS, Kahraman A, Thomas G. Fusarium head blight in wheat: contemporary status and molecular approaches. 3 Biotech 2020; 10:172. [PMID: 32206506 PMCID: PMC7080935 DOI: 10.1007/s13205-020-2158-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/28/2020] [Indexed: 02/07/2023] Open
Abstract
Fusarium head blight (FHB) disease that occurs in wheat is caused by Fusarium graminearum and is a major risk to wheat yield. Although several research efforts focusing on FHB have been conducted in the past several decades, conditions have become more critical due to the increase in its virulent forms. In such a scenario, conferring complete resistance in plants seems to be difficult for handling this issue. The phenotyping for FHB and finding a solution for it at the genetic level comprises a long-term process as FHB infection is largely affected by environmental conditions. Modern molecular strategies have played a crucial role in revealing the host-pathogen interaction in FHB. The integration of molecular biology-based methods such as genome-wide association studies and marker-based genomic selection has provided potential cultivars for breeding programs. In this review, we aim at outlining the contemporary status of the studies conducted on FHB in wheat. The influence of FHB in wheat on animals and human health is also discussed. In addition, a summary of the advancement in the molecular technologies for identifying and developing the FHB-resistant wheat genetic resources is provided. It also suggests the future measures that are required to reduce the world's vulnerability to FHB which was one of the main goals of the US Wheat and Barley Scab Initiative.
Collapse
Affiliation(s)
- Mohd. Kamran Khan
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Anamika Pandey
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Tabinda Athar
- Faculty of Agriculture, Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040 Pakistan
| | - Saumya Choudhary
- Department of Molecular and Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211007 India
- Biomedical Informatics Centre, National Institute of Pathology–Indian Council of Medical Research, New Delhi, 110029 India
| | - Ravi Deval
- Department of Biotechnology, Invertis University, Bareilly, India
| | - Sait Gezgin
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Mehmet Hamurcu
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Ali Topal
- Department of Field Crops, Selcuk University, Konya, 42079 Turkey
| | - Emel Atmaca
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Pamela Aracena Santos
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Makbule Rumeysa Omay
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Hatice Suslu
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Kamer Gulcan
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Merve Inanc
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Mahinur S. Akkaya
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116023 Liaoning China
| | - Abdullah Kahraman
- Department of Field Crops, Faculty of Agriculture, Harran University, Sanliurfa, 63300 Turkey
| | - George Thomas
- Department of Molecular and Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211007 India
| |
Collapse
|
23
|
Pariyar SR, Erginbas-Orakci G, Dadshani S, Chijioke OB, Léon J, Dababat AA, Grundler FMW. Dissecting the Genetic Complexity of Fusarium Crown Rot Resistance in Wheat. Sci Rep 2020; 10:3200. [PMID: 32081866 PMCID: PMC7035263 DOI: 10.1038/s41598-020-60190-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 01/28/2020] [Indexed: 11/09/2022] Open
Abstract
Fusarium crown rot (FCR) is one of the most important diseases of wheat (Triticum aestivum L.). FCR is mainly caused by the fungal pathogens Fusarium culmorum and F. pseudograminearum. In order to identify new sources of resistance to FCR and to dissect the complexity of FCR resistance, a panel of 161 wheat accessions was phenotyped under growth room (GR) and greenhouse conditions (GH). Analysis of variance showed significant differences in crown rot development among wheat accessions and high heritability of genotype-environment interactions for GR (0.96) and GH (0.91). Mixed linear model analysis revealed seven novel quantitative trait loci (QTLs) linked to F. culmorum on chromosomes 2AL, 3AS, 4BS, 5BS, 5DS, 5DL and 6DS for GR and eight QTLs on chromosomes on 3AS, 3BS, 3DL, 4BS (2), 5BS, 6BS and 6BL for GH. Total phenotypic variances (R²) explained by the QTLs linked to GR and GH were 48% and 59%, respectively. In addition, five favorable epistasis interactions among the QTLs were detected for both GR and GH with and without main effects. Epistatic interaction contributed additional variation up to 21% under GR and 7% under GH indicating strong effects of environment on the expression of QTLs. Our results revealed FCR resistance responses in wheat to be complex and controlled by multiple QTLs.
Collapse
Affiliation(s)
- Shree R Pariyar
- Forschungszentrum Jülich GmbH, Institut für Bio- und Geowissenschaften (IBG)-2, Pflanzenwissenschaften, D-52425, Jülich, Germany.,Institute of Crop Science and Resource Conservation (INRES), Molecular Phytomedicine, Karlrobert- Kreiten Strasse 13, D-53115, Bonn, Germany
| | - Gul Erginbas-Orakci
- International Maize and Wheat Improvement Centre (CIMMYT), P.K. 39 06511, Emek, Ankara, Turkey
| | - Said Dadshani
- Institute of Crop Science and Resource Conservation (INRES), Plant Breeding, Katzenburgweg 5, D-53115, Bonn, Germany
| | - Oyiga Benedict Chijioke
- Institute of Crop Science and Resource Conservation (INRES), Plant Breeding, Katzenburgweg 5, D-53115, Bonn, Germany
| | - Jens Léon
- Institute of Crop Science and Resource Conservation (INRES), Plant Breeding, Katzenburgweg 5, D-53115, Bonn, Germany
| | - Abdelfattah A Dababat
- International Maize and Wheat Improvement Centre (CIMMYT), P.K. 39 06511, Emek, Ankara, Turkey
| | - Florian M W Grundler
- Institute of Crop Science and Resource Conservation (INRES), Molecular Phytomedicine, Karlrobert- Kreiten Strasse 13, D-53115, Bonn, Germany.
| |
Collapse
|
24
|
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.
Collapse
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
| |
Collapse
|
25
|
Lu L, Liu H, Wu Y, Yan G. Development and Characterization of Near-Isogenic Lines Revealing Candidate Genes for a Major 7AL QTL Responsible for Heat Tolerance in Wheat. FRONTIERS IN PLANT SCIENCE 2020; 11:1316. [PMID: 32983205 PMCID: PMC7485290 DOI: 10.3389/fpls.2020.01316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/11/2020] [Indexed: 05/22/2023]
Abstract
Wheat is one of the most important food crops in the world, but as a cool-season crop, it is more prone to heat stress, which severely affects crop production and grain quality. Heat tolerance in wheat is a quantitative trait, and the genes underlying reported quantitative trait loci (QTL) have rarely been identified. Near-isogenic lines (NILs) with a common genetic background but differing at a particular locus could turn quantitative traits into a Mendelian factor; therefore, they are suitable material for identifying candidate genes for targeted locus/loci. In this study, we developed and characterized NILs from two populations Cascades × Tevere and Cascades × W156 targeting a major 7AL QTL responsible for heat tolerance. Molecular marker screening and phenotyping for SPAD chlorophyll content and grain-yield-related traits confirmed four pairs of wheat NILs that contrasted for heat-stress responses. Genotyping the NILs using a 90K Infinium iSelect SNP array revealed five single nucleotide polymorphism (SNP) markers within the QTL interval that were distinguishable between the isolines. Seven candidate genes linked to the SNPs were identified as related to heat tolerance, and involved in important processes and pathways in response to heat stress. The confirmed multiple pairs of NILs and identified candidate genes in this study are valuable resources and information for further fine-mapping to clone major genes for heat tolerance.
Collapse
Affiliation(s)
- Lu Lu
- Faculty of Science, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Hui Liu
- Faculty of Science, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
- *Correspondence: Hui Liu, ; Guijun Yan,
| | - Yu Wu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Guijun Yan
- Faculty of Science, UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
- *Correspondence: Hui Liu, ; Guijun Yan,
| |
Collapse
|
26
|
Mapping of Novel Leaf Rust and Stem Rust Resistance Genes in the Portuguese Durum Wheat Landrace PI 192051. G3-GENES GENOMES GENETICS 2019; 9:2535-2547. [PMID: 31278174 PMCID: PMC6686931 DOI: 10.1534/g3.119.400292] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Leaf rust caused by Puccinia triticina Erikss. (Pt) and stem rust caused by Puccinia graminis f. sp. tritici Erikss. & E. Henn (Pgt) are serious constraints to production of durum wheat (Triticum turgidum L). The objective of this study was to identify leaf rust resistance (Lr) and stem rust resistance (Sr) genes/QTL in Portuguese durum landrace PI 192051. Four Pt-isolates, representing three virulence phenotypes (BBBQJ, BBBSJ & EEEEE) and six Pgt-races TTKSK, JRCQC, TKTTF, QFCFC, TPMKC and TMLKC were used to evaluate 180 recombinant inbred lines (RILs) derived from the cross Rusty (rust susceptible) × PI 192051-1 (rust resistant) at the seedling stage. The RILs were also phenotyped at the adult-plant stage in a stem rust nursery in Ethiopia in 2017. The RILs were genotyped using the Illumina iSelect 9K wheat SNP array. PI 192051-1 carries a previously unidentified major Sr gene designated as QSr.ace-7A on chromosome arm 7AS and Lr gene Lr.ace-4A in the pericentromeric region of chromosome 4A. In addition, three minor Sr QTL QSr.ace-1A, QSr.ace-2B and QSr.ace-4A were mapped in PI 192051-1 on chromosomes 1AL, 2BL, and 4A, respectively Lr.ace-4A could be co-located or tightly linked to QSr.ace-4A. Markers linked to the identified QTL/genes can be used for marker assisted selection. These findings enrich the genetic basis of rust resistance in both durum and common wheat.
Collapse
|
27
|
Liu Y, Salsman E, Fiedler JD, Hegstad JB, Green A, Mergoum M, Zhong S, Li X. Genetic Mapping and Prediction Analysis of FHB Resistance in a Hard Red Spring Wheat Breeding Population. FRONTIERS IN PLANT SCIENCE 2019; 10:1007. [PMID: 31447872 PMCID: PMC6691880 DOI: 10.3389/fpls.2019.01007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/18/2019] [Indexed: 05/23/2023]
Abstract
Fusarium head blight (FHB) is one of the most destructive diseases in wheat worldwide. Breeding for FHB resistance is hampered by its complex genetic architecture, large genotype by environment interaction, and high cost of phenotype screening. Genomic selection (GS) is a powerful tool to enhance improvement of complex traits such as FHB resistance. The objectives of this study were to (1) investigate the genetic architecture of FHB resistance in a North Dakota State University (NDSU) hard red spring wheat breeding population, (2) test if the major QTL Fhb1 and Fhb5 play an important role in this breeding population; and (3) assess the potential of GS to enhance breeding efficiency of FHB resistance. A total of 439 elite spring wheat breeding lines from six breeding cycles were genotyped using genotyping-by-sequencing (GBS) and 102,147 SNP markers were obtained. Evaluation of FHB severity was conducted in 10 unbalanced field trials across multiple years and locations. One QTL for FHB resistance was identified and located on chromosome arm 1AL, explaining 5.3% of total phenotypic variation. The major type II resistance QTL Fhb1 only explained 3.1% of total phenotypic variation and the QTL Fhb5 was not significantly associated with FHB resistance in this breeding population. Our results suggest that integration of many genes with medium/minor effects in this breeding population should provide stable FHB resistance. Genomic prediction accuracies of 0.22-0.44 were obtained when predicting over breeding cycles in this study, indicating the potential of GS to enhance the improvement of FHB resistance.
Collapse
Affiliation(s)
- Yuan Liu
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - Evan Salsman
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - Jason D. Fiedler
- Biosciences Research Laboratory, USDA-ARS Genotyping Laboratory, Fargo, ND, United States
| | - Justin B. Hegstad
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - Andrew Green
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - Mohamed Mergoum
- Department of Crop and Soil Sciences, University of Georgia, Griffin, GA, United States
| | - Shaobin Zhong
- Department of Plant Pathology, North Dakota State University, Fargo, ND, United States
| | - Xuehui Li
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| |
Collapse
|
28
|
Mutation of a histidine-rich calcium-binding-protein gene in wheat confers resistance to Fusarium head blight. Nat Genet 2019; 51:1106-1112. [PMID: 31182810 DOI: 10.1038/s41588-019-0426-7] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 04/23/2019] [Indexed: 11/08/2022]
Abstract
Head or ear blight, mainly caused by Fusarium species, can devastate almost all staple cereal crops (particularly wheat), resulting in great economic loss and imposing health threats on both human beings and livestock1-3. However, achievement in breeding for highly resistant cultivars is still not satisfactory. Here, we isolated the major-effect wheat quantitative trait locus, Qfhs.njau-3B, which confers head blight resistance, and showed that it is the same as the previously designated Fhb1. Fhb1 results from a rare deletion involving the 3' exon of the histidine-rich calcium-binding-protein gene on chromosome 3BS. Both wheat and Arabidopsis transformed with the Fhb1 sequence showed enhanced resistance to Fusarium graminearum spread. The translation products of this gene's homologs among plants are well conserved and might be essential for plant growth and development. Fhb1 could be useful not only for curbing Fusarium head blight in grain crops but also for improving other plants vulnerable to Fusarium species.
Collapse
|
29
|
Venske E, dos Santos RS, Farias DDR, Rother V, da Maia LC, Pegoraro C, Costa de Oliveira A. Meta-Analysis of the QTLome of Fusarium Head Blight Resistance in Bread Wheat: Refining the Current Puzzle. FRONTIERS IN PLANT SCIENCE 2019; 10:727. [PMID: 31263469 PMCID: PMC6585393 DOI: 10.3389/fpls.2019.00727] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 05/16/2019] [Indexed: 05/20/2023]
Abstract
Background: Fusarium Head Blight (FHB) is a worldwide devastating disease of bread wheat (Triticum aestivum L.). Genetic resistance is the most effective way to control FHB and many QTL related to this trait have been mapped on the wheat genetic map. This information, however, must be refined to be more efficiently used in breeding programs and for the advance of the basic research. The objective of the present study was to in-depth analyze the QTLome of FHB resistance in bread wheat, further integrating genetic, genomic, and transcriptomic data, aiming to find candidate genes. Methods: An exhaustive bibliographic review on 76 scientific papers was carried out collecting information about QTL related to FHB resistance mapped on bread wheat. A dense genetic consensus map with 572,862 loci was generated for QTL projection. Meta-analysis could be performed on 323 QTL. Candidate gene mining was carried out within the most refined loci, containing genes that were cross-validated with publicly available transcriptional expression data of wheat under Fusarium infection. Most highlighted genes were investigated for protein evidence. Results: A total of 556 QTL were found in the literature, distributed on all sub-genomes and chromosomes of wheat. Meta-analysis generated 65 meta-QTL, and this refinement allows one to find markers more tightly linked to these regions. Candidate gene mining within the most refined meta-QTL, meta-QTL 1/chr. 3B, harvested 324 genes and transcriptional data cross-validated 10 of these genes, as responsive to FHB. One is of these genes encodes a Glycosiltransferase and the other encodes for a Cytochrome P450, and these such proteins have already been verified as being responsible for FHB resistance, but the remaining eight genes still have to be further studied, as promising loci for breeding. Conclusions: The QTLome of FHB resistance in wheat was successfully assembled and a refinement in terms of number and length of loci was obtained. The integration of the QTLome with genomic and transcriptomic data has allowed for the discovery of promising candidate genes for use in breeding programs.
Collapse
Affiliation(s)
- Eduardo Venske
- Crop Science Department, Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas, Brazil
| | | | - Daniel da Rosa Farias
- Instituto Federal de Educação, Ciência e Tecnologia Catarinense (IFC), Araquari, Brazil
| | - Vianei Rother
- Crop Science Department, Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas, Brazil
| | - Luciano Carlos da Maia
- Crop Science Department, Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas, Brazil
| | - Camila Pegoraro
- Crop Science Department, Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas, Brazil
| | - Antonio Costa de Oliveira
- Crop Science Department, Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas, Brazil
- *Correspondence: Antonio Costa de Oliveira
| |
Collapse
|
30
|
Su Z, Jin S, Zhang D, Bai G. Development and validation of diagnostic markers for Fhb1 region, a major QTL for Fusarium head blight resistance in wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2018; 131:2371-2380. [PMID: 30136107 DOI: 10.1007/s00122-018-3159-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 08/03/2018] [Indexed: 05/10/2023]
Abstract
Functional markers were developed based on the critical sequence deletion of TaHRC in the Fhb1 region and validated to be diagnostic in a worldwide wheat collection. Wheat Fusarium head blight (FHB) is a devastating disease in wheat and barley worldwide. Growing FHB-resistant cultivars is an effective strategy to minimize FHB damage in wheat production. Fhb1 is a quantitative trait locus for FHB resistance with the largest effect on disease severity identified to date. With this study, we developed diagnostic DNA markers for Fhb1 by comparing the genomic sequences in Fhb1 region between near-isogenic lines contrasting in Fhb1 alleles and phenotypic effects of the markers. Two markers were developed based on a deletion mutation in an gene encoding a putative histidine-rich calcium-binding protein (TaHRC) and validated in different types of populations. Haplotype or sequence analyses of the two markers in the three sets of diversity panels demonstrated that they are diagnostic for Fhb1, and superior to all previously used markers in selection accuracy. They also have the advantages of low cost, easy assay, and are suitable for breeding programs with either high- or low-throughput marker laboratories.
Collapse
Affiliation(s)
- Zhenqi Su
- Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang, 050035, Hebei Province, China
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
| | - Sujuan Jin
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
- Shijiazhuang Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050041, China
| | - Dadong Zhang
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
| | - Guihua Bai
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA.
- USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS, 66506, USA.
| |
Collapse
|
31
|
Abed A, Pérez-Rodríguez P, Crossa J, Belzile F. When less can be better: How can we make genomic selection more cost-effective and accurate in barley? TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2018; 131:1873-1890. [PMID: 29858950 DOI: 10.1007/s00122-018-3120-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 05/24/2018] [Indexed: 05/13/2023]
Abstract
We were able to obtain good prediction accuracy in genomic selection with ~ 2000 GBS-derived SNPs. SNPs in genic regions did not improve prediction accuracy compared to SNPs in intergenic regions. Since genotyping can represent an important cost in genomic selection, it is important to minimize it without compromising the accuracy of predictions. The objectives of the present study were to explore how a decrease in the unit cost of genotyping impacted: (1) the number of single nucleotide polymorphism (SNP) markers; (2) the accuracy of the resulting genotypic data; (3) the extent of coverage on both physical and genetic maps; and (4) the prediction accuracy (PA) for six important traits in barley. Variations on the genotyping by sequencing protocol were used to generate 16 SNP sets ranging from ~ 500 to ~ 35,000 SNPs. The accuracy of SNP genotypes fluctuated between 95 and 99%. Marker distribution on the physical map was highly skewed toward the terminal regions, whereas a fairly uniform coverage of the genetic map was achieved with all but the smallest set of SNPs. We estimated the PA using three statistical models capturing (or not) the epistatic effect; the one modeling both additivity and epistasis was selected as the best model. The PA obtained with the different SNP sets was measured and found to remain stable, except with the smallest set, where a significant decrease was observed. Finally, we examined if the localization of SNP loci (genic vs. intergenic) affected the PA. No gain in PA was observed using SNPs located in genic regions. In summary, we found that there is considerable scope for decreasing the cost of genotyping in barley (to capture ~ 2000 SNPs) without loss of PA.
Collapse
Affiliation(s)
- Amina Abed
- Département de Phytologie, Université Laval, Quebec City, QC, Canada
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, QC, Canada
| | - Paulino Pérez-Rodríguez
- Programa de Estadística y Cómputo, Colegio de Postgraduados, CP 56230, Montecillos, Edo. de México, Mexico
| | - José Crossa
- Biometrics and Statistics Unit, International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, 06600, Mexico City, Mexico
| | - François Belzile
- Département de Phytologie, Université Laval, Quebec City, QC, Canada.
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, QC, Canada.
| |
Collapse
|
32
|
Su P, Guo X, Fan Y, Wang L, Yu G, Ge W, Zhao L, Ma X, Wu J, Li A, Wang H, Kong L. Application of Brachypodium genotypes to the analysis of type II resistance to Fusarium head blight (FHB). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 272:255-266. [PMID: 29807599 DOI: 10.1016/j.plantsci.2018.04.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/15/2018] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
The resistance to Fusarium head blight (FHB) in wheat is mainly via the restrain of fungal expansion through spike rachis (type II resistance). In order to unravel the resistance mechanisms, Brachypodium distachyon 21 (Bd21), a monocotyledonous model plant, was previously proved to interact with F. graminearum, while the disease development in spike still needs to be explored in detail. Herein, it is found that the fungal spores mainly germinate on pistil of Bd21, then the hyphae rapidly extend to the bottom of floret and enter spike rachis, similar with the infection progress in wheat. However, structural difference of spike rachis was found between Brachypodium and wheat. It was found that the spread of the fungus through the rachis node of inoculated spikelets is an important index for the evaluation of type II FHB resistance in Brachypodium under optimal conditions at 28 °C and 50%-70% humidity. To verify the feasibility of this strategy, the transcription factor TaTGA2 was overexpressed in Bd21, and transgenic plants were found to show improved resistance to F. graminearum in both spikes and detached leaves, which was further supported by the increased disease severity when silencing TaTGA2 in the wheat cultivar "Sumai 3" or in tilling "Kronos" mutants. Except for Bd21, another 49 Brachypodium germplasms were further screened for FHB resistance, and three moderately susceptible germplasms, namely, PI 317418, W6-39284, and PI 254868, feasible for transformation, were determined to be better hosts than Bd21 when evaluating heterologous genes that positively regulate FHB resistance. The present study also observed variations in the levels of FHB resistance between coleoptiles and spikes or transgenic plants and natural germplasms.
Collapse
Affiliation(s)
- Peisen Su
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Xiuxiu Guo
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Yanhui Fan
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Liang Wang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Guanghui Yu
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Wenyang Ge
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Lanfei Zhao
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Xin Ma
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Jiajie Wu
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Anfei Li
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Hongwei Wang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China.
| | - Lingrang Kong
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, PR China.
| |
Collapse
|
33
|
Eldakak M, Das A, Zhuang Y, Rohila JS, Glover K, Yen Y. A Quantitative Proteomics View on the Function of Qfhb1, a Major QTL for Fusarium Head Blight Resistance in Wheat. Pathogens 2018; 7:E58. [PMID: 29932155 PMCID: PMC6161305 DOI: 10.3390/pathogens7030058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/18/2018] [Accepted: 06/19/2018] [Indexed: 12/18/2022] Open
Abstract
Fusarium head blight (FHB) is a highly detrimental disease of wheat. A quantitative trait locus for FHB resistance, Qfhb1, is the most utilized source of resistance in wheat-breeding programs, but very little is known about its resistance mechanism. In this study, we elucidated a prospective FHB resistance mechanism by investigating the proteomic signatures of Qfhb1 in a pair of contrasting wheat near-isogenic lines (NIL) after 24 h of inoculation of wheat florets by Fusarium graminearum. Statistical comparisons of the abundances of protein spots on the 2D-DIGE gels of contrasting NILs (fhb1+ NIL = Qfhb1 present; fhb1- NIL = Qfhb1 absent) enabled us to select 80 high-ranking differentially accumulated protein (DAP) spots. An additional evaluation confirmed that the DAP spots were specific to the spikelet from fhb1- NIL (50 spots), and fhb1+ NIL (seven spots). The proteomic data also suggest that the absence of Qfhb1 makes the fhb1- NIL vulnerable to Fusarium attack by constitutively impairing several mechanisms including sucrose homeostasis by enhancing starch synthesis from sucrose. In the absence of Qfhb1, Fusarium inoculations severely damaged photosynthetic machinery; altered the metabolism of carbohydrates, nitrogen and phenylpropanoids; disrupted the balance of proton gradients across relevant membranes; disturbed the homeostasis of many important signaling molecules induced the mobility of cellular repair; and reduced translational activities. These changes in the fhb1- NIL led to strong defense responses centered on the hypersensitive response (HSR), resulting in infected cells suicide and the consequent initiation of FHB development. Therefore, the results of this study suggest that Qfhb1 largely functions to either alleviate HSR or to manipulate the host cells to not respond to Fusarium infection.
Collapse
Affiliation(s)
- Moustafa Eldakak
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57006, USA.
- Genetics Department, College of Agriculture, Alexandria University, Alexandria 21526, Egypt.
| | - Aayudh Das
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57006, USA.
- Department of Plant Biology, University of Vermont, Burlington, VT 05405, USA.
| | - Yongbin Zhuang
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57006, USA.
- College of Agronomy, Shandong Agricultural University, Taian 271018, China.
| | - Jai S Rohila
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57006, USA.
- Department of Agronomy, Horticulture, and Plant Science, South Dakota State University, Brookings, SD 57006, USA.
- Dale Bumpers National Rice Research Center, Stuttgart, AR 72160, USA.
| | - Karl Glover
- Department of Agronomy, Horticulture, and Plant Science, South Dakota State University, Brookings, SD 57006, USA.
| | - Yang Yen
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57006, USA.
| |
Collapse
|
34
|
He Y, Zhang X, Zhang Y, Ahmad D, Wu L, Jiang P, Ma H. Molecular Characterization and Expression of PFT, an FHB Resistance Gene at the Fhb1 QTL in Wheat. PHYTOPATHOLOGY 2018; 108:730-736. [PMID: 29315018 DOI: 10.1094/phyto-11-17-0383-r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Fusarium head blight (FHB) is a destructive fungal disease in wheat worldwide. Efforts have been carried out to combat this disease, and the pore-forming toxin-like (PFT) gene at the quantitative trait locus (QTL) Fhb1 was isolated and found to confer resistance to FHB in Sumai 3. In this study, we characterized PFT in 348 wheat accessions. Four haplotypes of PFT were identified. The wild haplotype of PFT had higher resistance than other haplotypes and explained 13.8% of phenotypic variation in FHB resistance by association analysis. PFT was highly expressed during early flowering and increased after Fusarium graminearum treatment in Sumai 3. Analysis of the 5' flanking sequence of PFT predicted that the cis elements of the PFT promoter were related to hormones and biological defense responses. However, PFT existed not only in the FHB-resistant accessions but also in some susceptible accessions. These results suggested that FHB resistance in a diverse range of wheat genotypes is partially conditioned by PFT. The profiling of FHB resistance and the PFT locus in this large collection of wheat germplasm may prove helpful for incorporating FHB resistance into wheat breeding programs, although more work is needed to reveal the exact role of the QTL Fhb1 in conferring resistance to fungal spread.
Collapse
Affiliation(s)
- Yi He
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Xu Zhang
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Yu Zhang
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Dawood Ahmad
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Lei Wu
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Peng Jiang
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Hongxiang Ma
- All authors: Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, China; and fourth author: Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| |
Collapse
|
35
|
A journey to understand wheat Fusarium head blight resistance in the Chinese wheat landrace Wangshuibai. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.cj.2017.09.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
36
|
Sharma P, Gangola MP, Huang C, Kutcher HR, Ganeshan S, Chibbar RN. Single Nucleotide Polymorphisms in B-Genome Specific UDP-Glucosyl Transferases Associated with Fusarium Head Blight Resistance and Reduced Deoxynivalenol Accumulation in Wheat Grain. PHYTOPATHOLOGY 2018; 108:124-132. [PMID: 29063821 DOI: 10.1094/phyto-04-17-0159-r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An in vitro spike culture method was optimized to evaluate Fusarium head blight (FHB) resistance in wheat (Triticum aestivum) and used to screen a population of ethyl methane sulfonate treated spike culture-derived variants (SCDV). Of the 134 SCDV evaluated, the disease severity score of 47 of the variants was ≤30%. Single nucleotide polymorphisms (SNP) in the UDP-glucosyltransferase (UGT) genes, TaUGT-2B, TaUGT-3B, and TaUGT-EST, differed between AC Nanda (an FHB-susceptible wheat variety) and Sumai-3 (an FHB-resistant wheat cultivar). SNP at 450 and 1,558 bp from the translation initiation site in TaUGT-2B and TaUGT-3B, respectively were negatively correlated with FHB severity in the SCDV population, whereas the SNP in TaUGT-EST was not associated with FHB severity. Fusarium graminearum strain M7-07-1 induced early expression of TaUGT-2B and TaUGT-3B in FHB-resistant SCDV lines, which were associated with deoxynivalenol accumulation and reduced FHB disease progression. At 8 days after inoculation, deoxynivalenol concentration varied from 767 ppm in FHB-resistant variants to 2,576 ppm in FHB-susceptible variants. The FHB-resistant SCDV identified can be used as new sources of FHB resistance in wheat improvement programs.
Collapse
Affiliation(s)
- Pallavi Sharma
- All authors: Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, S7N 5A8, Saskatchewan, Canada
| | - Manu P Gangola
- All authors: Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, S7N 5A8, Saskatchewan, Canada
| | - Chen Huang
- All authors: Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, S7N 5A8, Saskatchewan, Canada
| | - H Randy Kutcher
- All authors: Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, S7N 5A8, Saskatchewan, Canada
| | - Seedhabadee Ganeshan
- All authors: Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, S7N 5A8, Saskatchewan, Canada
| | - Ravindra N Chibbar
- All authors: Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, S7N 5A8, Saskatchewan, Canada
| |
Collapse
|
37
|
Aoun M, Kolmer JA, Rouse MN, Chao S, Bulbula WD, Elias EM, Acevedo M. Inheritance and Bulked Segregant Analysis of Leaf Rust and Stem Rust Resistance in Durum Wheat Genotypes. PHYTOPATHOLOGY 2017; 107:1496-1506. [PMID: 28745102 PMCID: PMC7779972 DOI: 10.1094/phyto-12-16-0444-r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/17/2017] [Indexed: 05/25/2023]
Abstract
Leaf rust, caused by Puccinia triticina, and stem rust, caused by P. graminis f. sp. tritici, are important diseases of durum wheat. This study determined the inheritance and genomic locations of leaf rust resistance (Lr) genes to P. triticina race BBBQJ and stem rust resistance (Sr) genes to P. graminis f. sp. tritici race TTKSK in durum accessions. Eight leaf-rust-resistant genotypes were used to develop biparental populations. Accessions PI 192051 and PI 534304 were also resistant to P. graminis f. sp. tritici race TTKSK. The resulting progenies were phenotyped for leaf rust and stem rust response at seedling stage. The Lr and Sr genes were mapped in five populations using single-nucleotide polymorphisms and bulked segregant analysis. Five leaf-rust-resistant genotypes carried single dominant Lr genes whereas, in the remaining accessions, there was deviation from the expected segregation ratio of a single dominant Lr gene. Seven genotypes carried Lr genes different from those previously characterized in durum. The single dominant Lr genes in PI 209274, PI 244061, PI387263, and PI 313096 were mapped to chromosome arms 6BS, 2BS, 6BL, and 6BS, respectively. The Sr gene in PI 534304 mapped to 6AL and is most likely Sr13, while the Sr gene in PI 192051 could be uncharacterized in durum.
Collapse
|
38
|
Malihipour A, Gilbert J, Fedak G, Brûlé-Babel A, Cao W. Mapping the A Genome for QTL Conditioning Resistance to Fusarium Head Blight in a Wheat Population with Triticum timopheevii Background. PLANT DISEASE 2017; 101:11-19. [PMID: 30682314 DOI: 10.1094/pdis-02-16-0144-re] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Development and use of resistant wheat cultivars is the most practical and economical approach for the control of Fusarium head blight (FHB). In the present study, a population of recombinant inbred lines derived from the cross between 'AC Brio' (a Canadian bread wheat cultivar moderately susceptible to FHB) and 'TC 67' (an FHB-resistant cultivar derived from Triticum timopheevii) was used to map quantitative trait loci (QTL) for FHB resistance using microsatellite molecular markers. Multiple interval mapping detected several QTL for FHB resistance on the chromosomes 5AL and 6A. The QTL detected in the marker interval of cfd6.1-barc48 on chromosome 5AL explained 10.9, 5.2, and 7.8% of phenotypic variation for disease incidence (type I resistance), disease severity (a combination of type I and type II resistance), and Fusarium-damaged kernels (FDK) (type IV resistance) under field conditions, respectively. The second QTL mapped to 5AL, in the marker interval of cfd39-cfa2185, explained 19.4 and 20.6% of phenotypic variation for FDK under field conditions and disease severity in the greenhouse (type II resistance), respectively. The QTL located on chromosome 6A conferred resistance to disease incidence and severity under field conditions and to disease severity in the greenhouse, explaining 6.8 to 11.8% of phenotypic variation for these traits. Several QTL for agronomic traits were also mapped in this study, including one and two QTL to the chromosomes 2A and 5AL, respectively, all for plant height, and two QTL to chromosome 6A for plant height and flowering date, respectively. The 5AL QTL for FHB resistance mapped in the marker interval of cfd39-cfa2185 in the present study is a novel QTL that originated from T. timopheevii and is reported here for the first time. Further validation of this QTL is required for wheat breeding programs to enhance resistance levels to FHB.
Collapse
Affiliation(s)
- Ali Malihipour
- Department of Biological Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada, and Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada
| | - Jeannie Gilbert
- Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg
| | - George Fedak
- Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | | | - Wenguang Cao
- Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa
| |
Collapse
|
39
|
Li X, Xiang ZP, Chen WQ, Huang QL, Liu TG, Li Q, Zhong SF, Zhang M, Guo JW, Lei L, Luo PG. Reevaluation of Two Quantitative Trait Loci for Type II Resistance to Fusarium Head Blight in Wheat Germplasm PI 672538. PHYTOPATHOLOGY 2017; 107:92-99. [PMID: 27571309 DOI: 10.1094/phyto-04-16-0170-r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is a destructive disease in wheat. A population consisting of 229 F2 and F2:3 plants derived from the cross PI 672538 × L661 was used to evaluate the reactions to FHB. The FHB resistance data distribution in the F2 population indicates that some quantitative trait loci (QTLs) were controlling the FHB resistance in PI 672538. We further detected two major QTLs (Qfhs-2B, Qfhs-3B) from analysis of the resistance data and the PCR-amplified results using WinQTLCart 2.5 software. Qfhs-2B, flanked by Xbarc55-2B and Xbarc1155-2B, explained more than 11.6% of the phenotypic variation of the percentage of diseased spikelets (PDS), and Qfhs-3B, flanked by Xwmc54-3B and Xgwm566-3B, explained more than 10% of the PDS phenotypic variation in the F2:3 population. In addition, Qfhs-3B was different from Fhb1 in terms of the pedigree, inheritance, resistance response, chromosomal location, and marker diagnosis. We also detected QTLs for other disease resistance indices, including the percentage of damaged kernels and 1,000-grain weight, in similar chromosomal regions. Therefore, the FHB resistance of PI 672538 was mainly controlled by two major QTLs, mapped on 2B (FhbL693a) and 3B (FhbL693b). PI 672538 could be a useful germplasm for improving wheat FHB resistance.
Collapse
Affiliation(s)
- X Li
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - Z P Xiang
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - W Q Chen
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - Q L Huang
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - T G Liu
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - Q Li
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - S F Zhong
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - M Zhang
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - J W Guo
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - L Lei
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - P G Luo
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| |
Collapse
|
40
|
Rawat N, Pumphrey MO, Liu S, Zhang X, Tiwari VK, Ando K, Trick HN, Bockus WW, Akhunov E, Anderson JA, Gill BS. Wheat Fhb1 encodes a chimeric lectin with agglutinin domains and a pore-forming toxin-like domain conferring resistance to Fusarium head blight. Nat Genet 2016; 48:1576-1580. [DOI: 10.1038/ng.3706] [Citation(s) in RCA: 208] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 09/29/2016] [Indexed: 11/09/2022]
|
41
|
Schweiger W, Steiner B, Vautrin S, Nussbaumer T, Siegwart G, Zamini M, Jungreithmeier F, Gratl V, Lemmens M, Mayer KFX, Bérgès H, Adam G, Buerstmayr H. Suppressed recombination and unique candidate genes in the divergent haplotype encoding Fhb1, a major Fusarium head blight resistance locus in wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2016; 129:1607-23. [PMID: 27174222 PMCID: PMC4943984 DOI: 10.1007/s00122-016-2727-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 05/03/2016] [Indexed: 05/09/2023]
Abstract
Fine mapping and sequencing revealed 28 genes in the non-recombining haplotype containing Fhb1 . Of these, only a GDSL lipase gene shows a pathogen-dependent expression pattern. Fhb1 is a prominent Fusarium head blight resistance locus of wheat, which has been successfully introgressed in adapted breeding material, where it confers a significant increase in overall resistance to the causal pathogen Fusarium graminearum and the fungal virulence factor and mycotoxin deoxynivalenol. The Fhb1 region has been resolved for the susceptible wheat reference genotype Chinese Spring, yet the causal gene itself has not been identified in resistant cultivars. Here, we report the establishment of a 1 Mb contig embracing Fhb1 in the donor line CM-82036. Sequencing revealed that the region of Fhb1 deviates from the Chinese Spring reference in DNA size and gene content, which explains the repressed recombination at the locus in the performed fine mapping. Differences in genes expression between near-isogenic lines segregating for Fhb1 challenged with F. graminearum or treated with mock were investigated in a time-course experiment by RNA sequencing. Several candidate genes were identified, including a pathogen-responsive GDSL lipase absent in susceptible lines. The sequence of the Fhb1 region, the resulting list of candidate genes, and near-diagnostic KASP markers for Fhb1 constitute a valuable resource for breeding and further studies aiming to identify the gene(s) responsible for F. graminearum and deoxynivalenol resistance.
Collapse
Affiliation(s)
- W Schweiger
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria.
| | - B Steiner
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
| | - S Vautrin
- French Plant Genomic Resource Centre, INRA-CNRGV, Chemin de Borde Rouge, CS 52627, 31326, Castanet Tolosan, France
| | - T Nussbaumer
- Plant Genome and Systems Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
- Division of Computational System Biology, Department of Microbiology and Ecosystem Science, University of Vienna, 1090, Vienna, Austria
| | - G Siegwart
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
- Department of Applied Genetics and Cell Biology, BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 22, 3430, Tulln, Austria
| | - M Zamini
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
| | - F Jungreithmeier
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
| | - V Gratl
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
| | - M Lemmens
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
| | - K F X Mayer
- Plant Genome and Systems Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - H Bérgès
- French Plant Genomic Resource Centre, INRA-CNRGV, Chemin de Borde Rouge, CS 52627, 31326, Castanet Tolosan, France
| | - G Adam
- Department of Applied Genetics and Cell Biology, BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 22, 3430, Tulln, Austria
| | - H Buerstmayr
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU-University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430, Tulln, Austria
| |
Collapse
|
42
|
Li T, Luo M, Zhang D, Wu D, Li L, Bai G. Effective marker alleles associated with type 2 resistance to Fusarium head blight infection in fields. BREEDING SCIENCE 2016; 66:350-7. [PMID: 27436944 PMCID: PMC4902456 DOI: 10.1270/jsbbs.15124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/03/2016] [Indexed: 05/13/2023]
Abstract
Molecular markers associated with known quantitative trait loci (QTLs) for type 2 resistance to Fusarium head blight (FHB) in bi-parental mapping population usually have more than two alleles in breeding populations. Therefore, understanding the association of each allele with FHB response is particularly important to marker-assisted enhancement of FHB resistance. In this paper, we evaluated FHB severities of 192 wheat accessions including landraces and commercial varieties in three field growing seasons, and genotyped this panel with 364 genome-wide informative molecular markers. Among them, 11 markers showed reproducible marker-trait association (p < 0.05) in at least two experiments using a mixed model. More than two alleles were identified per significant marker locus. These alleles were classified into favorable, unfavorable and neutral alleles according to the normalized genotypic values. The distributions of effective alleles at these loci in each wheat accession were characterized. Mean FHB severities increased with decreased number of favorable alleles at the reproducible loci. Chinese wheat landraces and Japanese accessions have more favorable alleles at the majority of the reproducible marker loci. FHB resistance levels of varieties can be greatly improved by introduction of these favorable alleles and removal of unfavorable alleles simultaneously at these QTL-linked marker loci.
Collapse
Affiliation(s)
- Tao Li
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops; Key Laboratory of Plant Functional Genomics of Ministry of Education; Wheat Research Center, Yangzhou University,
Yangzhou, Jiangsu 225009China
- Corresponding author (e-mail: )
| | - Meng Luo
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops; Key Laboratory of Plant Functional Genomics of Ministry of Education; Wheat Research Center, Yangzhou University,
Yangzhou, Jiangsu 225009China
| | - Dadong Zhang
- Department of Agronomy, Kansas State University,
Manhattan, KS 66506,
USA
| | - Di Wu
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops; Key Laboratory of Plant Functional Genomics of Ministry of Education; Wheat Research Center, Yangzhou University,
Yangzhou, Jiangsu 225009China
| | - Lei Li
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops; Key Laboratory of Plant Functional Genomics of Ministry of Education; Wheat Research Center, Yangzhou University,
Yangzhou, Jiangsu 225009China
| | - Guihua Bai
- Department of Agronomy, Kansas State University,
Manhattan, KS 66506,
USA
- USDA-ARS Hard Winter Wheat Genetics Research Unit,
Manhattan, KS 66506USA
| |
Collapse
|
43
|
Zhu X, Zhong S, Chao S, Gu YQ, Kianian SF, Elias E, Cai X. Toward a better understanding of the genomic region harboring Fusarium head blight resistance QTL Qfhs.ndsu-3AS in durum wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2016; 129:31-43. [PMID: 26385373 DOI: 10.1007/s00122-015-2606-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 09/07/2015] [Indexed: 05/08/2023]
Abstract
New molecular markers were developed and mapped to the FHB resistance QTL region in high resolution. Micro-collinearity of the QTL region with rice and Brachypodium was revealed for a better understanding of the genomic region. The wild emmer wheat (Triticum dicoccoides)-derived Fusarium head blight (FHB) resistance quantitative trait locus (QTL) Qfhs.ndsu-3AS previously mapped to the short arm of chromosome 3A (3AS) in a population of recombinant inbred chromosome lines (RICLs). This study aimed to attain a better understanding of the genomic region harboring Qfhs.ndsu-3AS and to improve the utility of the QTL in wheat breeding. Micro-collinearity of the QTL region with rice chromosome 1 and Brachypodium chromosome 2 was identified and used for marker development in saturation mapping. A total of 42 new EST-derived sequence tagged site (STS) and simple sequence repeat (SSR) markers were developed and mapped to the QTL and nearby regions on 3AS. Further comparative analysis revealed a complex collinearity of the 3AS genomic region with their collinear counterparts of rice and Brachypodium. Fine mapping of the QTL region resolved five co-segregating markers (Xwgc1186/Xwgc716/Xwgc1143/Xwgc501/Xwgc1204) into three distinct loci proximal to Xgwm2, a marker previously reported to be closely linked to the QTL. Four other markers (Xwgc1226, Xwgc510, Xwgc1296, and Xwgc1301) mapped farther proximal to the above markers in the QTL region with a higher resolution. Five homozygous recombinants with shortened T. dicoccoides chromosomal segments in the QTL region were recovered by molecular marker analysis and evaluated for FHB resistance. Qfhs.ndsu-3AS was positioned to a 5.2 cM interval flanked by the marker Xwgc501 and Xwgc510. The recombinants containing Qfhs.ndsu-3AS and new markers defining the QTL will facilitate utilization of this resistance source in wheat breeding.
Collapse
Affiliation(s)
- Xianwen Zhu
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Shaobin Zhong
- Departments of Plant Pathology, North Dakota State University, Fargo, ND, 58108, USA
| | - Shiaoman Chao
- The Red River Valley Agricultural Research Center, USDA-ARS, Fargo, ND, 58102, USA
| | - Yong Qiang Gu
- The Western Regional Research Center, USDA-ARS, Albany, CA, 94710, USA
| | - Shahryar F Kianian
- The Cereal Disease Laboratory, USDA-ARS, 1551 Lindig Street, St. Paul, MN, 55108, USA
| | - Elias Elias
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Xiwen Cai
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA.
| |
Collapse
|
44
|
Guo J, Zhang X, Hou Y, Cai J, Shen X, Zhou T, Xu H, Ohm HW, Wang H, Li A, Han F, Wang H, Kong L. High-density mapping of the major FHB resistance gene Fhb7 derived from Thinopyrum ponticum and its pyramiding with Fhb1 by marker-assisted selection. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2015. [PMID: 26220223 DOI: 10.1007/s00122-015-2586-x] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Wheat lines with shortened Th. ponticum chromatin carrying Fhb7 and molecular markers linked to Fhb7 will accelerate the transfer of Fhb7 to breeding lines and provide an important resource for future map-based cloning of this gene. Fusarium head blight is a major wheat disease globally. A major FHB resistance gene, designated as Fhb7, derived from Thinopyrum ponticum, was earlier transferred to common wheat, but was not used in wheat breeding due to linkage drag. The aims of this study were to (1) saturate this FHB resistance gene region; (2) develop and characterize secondary translocation lines with shortened Thinopyrum segments carrying Fhb7 using ph1b; (3) pyramid Fhb7 and Fhb1 by marker-assisted selection. Fhb7 was mapped in a 1.7 cM interval that was flanked by molecular markers XsdauK66 and Xcfa2240 with SSR, diversity arrays technology, EST-derived and conserved markers. KS24-2 carrying Fhb7 was analyzed with molecular markers and genomic in situ hybridization, confirming it was a 7DS.7el2L Robertsonian translocation. To reduce the Thinopyrum chromatin segments carrying Fhb7, a BC1F2 population (Chinese Spring ph1bph1b*2/KS24-2) was developed and genotyped with the markers linked to Fhb7. Two new translocation lines (SDAU1881 and SDAU1886) carrying Fhb7 on shortened alien segments (approximately 16.1 and 17.3% of the translocation chromosome, respectively) were developed. Furthermore, four wheat lines (SDAU1902, SDAU1903, SDAU1904, and SDAU1906) with the pyramided markers flanking Fhb1 and Fhb7 were developed and the FHB responses indicated lines with mean NDS ranging from 1.3 to 1.6 had successfully combined Fhb7 and Fhb1. Three new molecular markers associated with Fhb7 were identified and validated in 35 common wheat varieties. The translocation lines with shortened alien segments carrying Fhb7 (and Fhb1) and the markers closely linked to Fhb7 will be useful for improving wheat scab resistance.
Collapse
Affiliation(s)
- Jun Guo
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Xiuli Zhang
- College of Life Science, Northeast Forest University, Harbin, 150040, Jilin, China
| | - Yanlin Hou
- State Key Lab of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jinjin Cai
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Xiaorong Shen
- Department of Agronomy, Purdue University, West Lafayette, IN, 47907-1150, USA
| | - Tingting Zhou
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Huihui Xu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Herbert W Ohm
- Department of Agronomy, Purdue University, West Lafayette, IN, 47907-1150, USA
| | - Hongwei Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Anfei Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Fangpu Han
- State Key Lab of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Honggang Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China
| | - Lingrang Kong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian, 271018, China.
| |
Collapse
|
45
|
Li X, Shin S, Heinen S, Dill-Macky R, Berthiller F, Nersesian N, Clemente T, McCormick S, Muehlbauer GJ. Transgenic Wheat Expressing a Barley UDP-Glucosyltransferase Detoxifies Deoxynivalenol and Provides High Levels of Resistance to Fusarium graminearum. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2015. [PMID: 26214711 DOI: 10.1094/mpmi-03-15-0062-r] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is a devastating disease of wheat that results in economic losses worldwide. During infection, F. graminearum produces trichothecene mycotoxins, including deoxynivalenol (DON), that increase fungal virulence and reduce grain quality. Transgenic wheat expressing a barley UDP-glucosyltransferase (HvUGT13248) were developed and evaluated for FHB resistance, DON accumulation, and the ability to metabolize DON to the less toxic DON-3-O-glucoside (D3G). Point-inoculation tests in the greenhouse showed that transgenic wheat carrying HvUGT13248 exhibited significantly higher resistance to disease spread in the spike (type II resistance) compared with nontransformed controls. Two transgenic events displayed complete suppression of disease spread in the spikes. Expression of HvUGT13248 in transgenic wheat rapidly and efficiently conjugated DON to D3G, suggesting that the enzymatic rate of DON detoxification translates to type II resistance. Under field conditions, FHB severity was variable; nonetheless, transgenic events showed significantly less-severe disease phenotypes compared with the nontransformed controls. In addition, a seedling assay demonstrated that the transformed plants had a higher tolerance to DON-inhibited root growth than nontransformed plants. These results demonstrate the utility of detoxifying DON as a FHB control strategy in wheat.
Collapse
Affiliation(s)
- Xin Li
- 1 Department of Plant Biology
| | | | - Shane Heinen
- 2 Department of Agronomy and Plant Genetics, and
| | - Ruth Dill-Macky
- 3 Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108, U.S.A
| | - Franz Berthiller
- 4 Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna, 3430 Tulln, Austria
| | - Natalya Nersesian
- 5 Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68588, U.S.A
| | - Thomas Clemente
- 5 Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68588, U.S.A
| | - Susan McCormick
- 6 USDA-ARS, Bacterial Foodborne Pathogen and Mycology Research Unit, Peoria, IL 61604, U.S.A
| | - Gary J Muehlbauer
- 1 Department of Plant Biology
- 2 Department of Agronomy and Plant Genetics, and
| |
Collapse
|
46
|
Zheng Z, Ma J, Stiller J, Zhao Q, Feng Q, Choulet F, Feuillet C, Zheng YL, Wei Y, Han B, Yan G, Manners JM, Liu C. Fine mapping of a large-effect QTL conferring Fusarium crown rot resistance on the long arm of chromosome 3B in hexaploid wheat. BMC Genomics 2015; 16:850. [PMID: 26493707 PMCID: PMC4618961 DOI: 10.1186/s12864-015-2105-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 10/16/2015] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Fusarium crown rot (FCR) is a major cereal disease in semi-arid areas worldwide. Of the various QTL reported, the one on chromosome arm 3BL (Qcrs.cpi-3B) has the largest effect that can be consistently detected in different genetic backgrounds. Nine sets of near isogenic lines (NILs) for this locus were made available in a previous study. To identify markers that could be reliably used in tagging the Qcrs.cpi-3B locus, a NIL-derived population consisting of 774 F10 lines were generated and exploited to assess markers selected from the existing linkage map and generated from sequences of the 3B pseudomolecule. RESULTS This is the first report on fine mapping a QTL conferring FCR resistance in wheat. By three rounds of linkage mapping using the NILs and the NIL-derived population, the Qcrs.cpi-3B locus was mapped to an interval of 0.7 cM covering a physical distance of about 1.5 Mb. Seven markers co-segregating with the locus were developed. This interval contains a total of 63 gene-coding sequences based on the 3B pseudomolecule, and six of them were known to encode disease resistance proteins. Several of the genes in this interval were among those responsive to FCR infection detected in an earlier study. CONCLUSIONS The accurate localization of the Qcrs.cpi-3B locus and the development of the markers co-segregating with it should facilitate the incorporation of this large-effect QTL conferring FCR resistance into breeding programs as well as the cloning of the gene(s) underlying the QTL.
Collapse
Affiliation(s)
- Zhi Zheng
- CSIRO Agriculture, 306 Carmody Road, St Lucia, QLD, 4067, Australia.
- School of Plant Biology, Faculty of Science and The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6009, Australia.
- National Foxtail Millet Improvement Centre, Institute of Millet Crops, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang, China.
| | - Jian Ma
- CSIRO Agriculture, 306 Carmody Road, St Lucia, QLD, 4067, Australia.
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.
| | - Jiri Stiller
- CSIRO Agriculture, 306 Carmody Road, St Lucia, QLD, 4067, Australia.
| | - Qiang Zhao
- National Center for Gene Research, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 500 Caobao Road, Shanghai, 200233, China.
| | - Qi Feng
- National Center for Gene Research, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 500 Caobao Road, Shanghai, 200233, China.
| | - Frédéric Choulet
- INRA-UBP Joint Research Unit 1095, Genetics, Diversity and Ecophysiology of Cereals Clermont-Ferrand, Clermont-Ferrand, F-63100, France.
| | - Catherine Feuillet
- INRA-UBP Joint Research Unit 1095, Genetics, Diversity and Ecophysiology of Cereals Clermont-Ferrand, Clermont-Ferrand, F-63100, France.
| | - You-Liang Zheng
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.
| | - Yuming Wei
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.
| | - Bin Han
- National Center for Gene Research, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 500 Caobao Road, Shanghai, 200233, China.
| | - Guijun Yan
- National Foxtail Millet Improvement Centre, Institute of Millet Crops, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang, China.
| | - John M Manners
- CSIRO Agriculture, 306 Carmody Road, St Lucia, QLD, 4067, Australia.
| | - Chunji Liu
- CSIRO Agriculture, 306 Carmody Road, St Lucia, QLD, 4067, Australia.
- School of Plant Biology, Faculty of Science and The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6009, Australia.
| |
Collapse
|
47
|
Nussbaumer T, Warth B, Sharma S, Ametz C, Bueschl C, Parich A, Pfeifer M, Siegwart G, Steiner B, Lemmens M, Schuhmacher R, Buerstmayr H, Mayer KFX, Kugler KG, Schweiger W. Joint Transcriptomic and Metabolomic Analyses Reveal Changes in the Primary Metabolism and Imbalances in the Subgenome Orchestration in the Bread Wheat Molecular Response to Fusarium graminearum. G3 (BETHESDA, MD.) 2015; 5:2579-92. [PMID: 26438291 PMCID: PMC4683631 DOI: 10.1534/g3.115.021550] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 09/22/2015] [Indexed: 12/26/2022]
Abstract
Fusarium head blight is a prevalent disease of bread wheat (Triticum aestivum L.), which leads to considerable losses in yield and quality. Quantitative resistance to the causative fungus Fusarium graminearum is poorly understood. We integrated transcriptomics and metabolomics data to dissect the molecular response to the fungus and its main virulence factor, the toxin deoxynivalenol in near-isogenic lines segregating for two resistance quantitative trait loci, Fhb1 and Qfhs.ifa-5A. The data sets portrait rearrangements in the primary metabolism and the translational machinery to counter the fungus and the effects of the toxin and highlight distinct changes in the metabolism of glutamate in lines carrying Qfhs.ifa-5A. These observations are possibly due to the activity of two amino acid permeases located in the quantitative trait locus confidence interval, which may contribute to increased pathogen endurance. Mapping to the highly resolved region of Fhb1 reduced the list of candidates to few genes that are specifically expressed in presence of the quantitative trait loci and in response to the pathogen, which include a receptor-like protein kinase, a protein kinase, and an E3 ubiquitin-protein ligase. On a genome-scale level, the individual subgenomes of hexaploid wheat contribute differentially to defense. In particular, the D subgenome exhibited a pronounced response to the pathogen and contributed significantly to the overall defense response.
Collapse
Affiliation(s)
- Thomas Nussbaumer
- Plant Genome and Systems Biology, Helmholtz Zentrum München, Neuherberg, D-85764, Germany
| | - Benedikt Warth
- Center for Analytical Chemistry (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A- 3430, Austria
| | - Sapna Sharma
- Plant Genome and Systems Biology, Helmholtz Zentrum München, Neuherberg, D-85764, Germany
| | - Christian Ametz
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A-3430, Austria
| | - Christoph Bueschl
- Center for Analytical Chemistry (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A- 3430, Austria
| | - Alexandra Parich
- Center for Analytical Chemistry (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A- 3430, Austria
| | - Matthias Pfeifer
- Plant Genome and Systems Biology, Helmholtz Zentrum München, Neuherberg, D-85764, Germany
| | - Gerald Siegwart
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A-3430, Austria
| | - Barbara Steiner
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A-3430, Austria
| | - Marc Lemmens
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A-3430, Austria
| | - Rainer Schuhmacher
- Center for Analytical Chemistry (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A- 3430, Austria
| | - Hermann Buerstmayr
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A-3430, Austria
| | - Klaus F X Mayer
- Plant Genome and Systems Biology, Helmholtz Zentrum München, Neuherberg, D-85764, Germany
| | - Karl G Kugler
- Plant Genome and Systems Biology, Helmholtz Zentrum München, Neuherberg, D-85764, Germany
| | - Wolfgang Schweiger
- Institute for Biotechnology in Plant Production (IFA-Tulln), BOKU - University of Natural Resources and Life Sciences, Tulln, A-3430, Austria
| |
Collapse
|
48
|
Cainong JC, Bockus WW, Feng Y, Chen P, Qi L, Sehgal SK, Danilova TV, Koo DH, Friebe B, Gill BS. Chromosome engineering, mapping, and transferring of resistance to Fusarium head blight disease from Elymus tsukushiensis into wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2015; 128:1019-27. [PMID: 25726000 DOI: 10.1007/s00122-015-2485-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 02/13/2015] [Indexed: 05/12/2023]
Abstract
This manuscript describes the transfer and molecular cytogenetic characterization of a novel source of Fusarium head blight resistance in wheat. Fusarium head blight (FHB) caused by the fungus Fusarium graminearum Schwabe [telomorph = Gibberella zeae (Schwein. Fr.) Petch] is an important disease of bread wheat, Triticum aestivum L. (2n = 6x = 42, AABBDD) worldwide. Wheat has limited resistance to FHB controlled by many loci and new sources of resistance are urgently needed. The perennial grass Elymus tsukushiensis thrives in the warm and humid regions of China and Japan and is immune to FHB. Here, we report the transfer and mapping of a major gene Fhb6 from E. tsukushiensis to wheat. Fhb6 was mapped to the subterminal region in the short arm of chromosome 1E(ts)#1S of E. tsukushiensis. Chromosome engineering was used to replace corresponding homoeologous region of chromosome 1AS of wheat with the Fhb6 associated chromatin derived from 1E(ts)#1S of E. tsukushiensis. Fhb6 appears to be new locus for wheat as previous studies have not detected any FHB resistance QTL in this chromosome region. Plant progenies homozygous for Fhb6 had a disease severity rating of 7 % compared to 35 % for the null progenies. Fhb6 has been tagged with molecular markers for marker-assisted breeding and pyramiding of resistance loci for effective control of FHB.
Collapse
Affiliation(s)
- Joey C Cainong
- Department of Plant Pathology, Wheat Genetics Resource Center, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS, 66506-5502, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Diéguez MJ, Pergolesi MF, Velasquez SM, Ingala L, López M, Darino M, Paux E, Feuillet C, Sacco F. Fine mapping of LrSV2, a race-specific adult plant leaf rust resistance gene on wheat chromosome 3BS. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2014; 127:1133-1141. [PMID: 24553966 DOI: 10.1007/s00122-014-2285-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 02/04/2014] [Indexed: 06/03/2023]
Abstract
Fine mapping permits the precise positioning of genes within chromosomes, prerequisite for positional cloning that will allow its rational use and the study of the underlying molecular action mechanism. Three leaf rust resistance genes were identified in the durable leaf rust resistant Argentinean wheat variety Sinvalocho MA: the seedling resistance gene Lr3 on distal 6BL and two adult plant resistance genes, LrSV1 and LrSV2, on chromosomes 2DS and 3BS, respectively. To develop a high-resolution genetic map for LrSV2, 10 markers were genotyped on 343 F2 individuals from a cross between Sinvalocho MA and Gama6. The closest co-dominant markers on both sides of the gene (3 microsatellites and 2 STMs) were analyzed on 965 additional F2s from the same cross. Microsatellite marker cfb5010 cosegregated with LrSV2 whereas flanking markers were found at 1 cM distal and at 0.3 cM proximal to the gene. SSR markers designed from the sequences of cv Chinese Spring BAC clones spanning the LrSV2 genetic interval were tested on the recombinants, allowing the identification of microsatellite swm13 at 0.15 cM distal to LrSV2. This delimited an interval of 0.45 cM around the gene flanked by the SSR markers swm13 and gwm533 at the subtelomeric end of chromosome 3BS.
Collapse
Affiliation(s)
- M J Diéguez
- Instituto de Genética "Ewald A. Favret" CICVyA-INTA CC25 (1712) Castelar, Buenos Aires, Argentina,
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Schweiger W, Steiner B, Ametz C, Siegwart G, Wiesenberger G, Berthiller F, Lemmens M, Jia H, Adam G, Muehlbauer GJ, Kreil DP, Buerstmayr H. Transcriptomic characterization of two major Fusarium resistance quantitative trait loci (QTLs), Fhb1 and Qfhs.ifa-5A, identifies novel candidate genes. MOLECULAR PLANT PATHOLOGY 2013; 14:772-85. [PMID: 23738863 PMCID: PMC3902993 DOI: 10.1111/mpp.12048] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Fusarium head blight, caused by Fusarium graminearum, is a devastating disease of wheat. We developed near-isogenic lines (NILs) differing in the two strongest known F. graminearum resistance quantitative trait loci (QTLs), Qfhs.ndsu-3BS (also known as resistance gene Fhb1) and Qfhs.ifa-5A, which are located on the short arm of chromosome 3B and on chromosome 5A, respectively. These NILs showing different levels of resistance were used to identify transcripts that are changed significantly in a QTL-specific manner in response to the pathogen and between mock-inoculated samples. After inoculation with F. graminearum spores, 16 transcripts showed a significantly different response for Fhb1 and 352 for Qfhs.ifa-5A. Notably, we identified a lipid transfer protein which is constitutively at least 50-fold more abundant in plants carrying the resistant allele of Qfhs.ifa-5A. In addition to this candidate gene associated with Qfhs.ifa-5A, we identified a uridine diphosphate (UDP)-glycosyltransferase gene, designated TaUGT12887, exhibiting a positive difference in response to the pathogen in lines harbouring both QTLs relative to lines carrying only the Qfhs.ifa-5A resistance allele, suggesting Fhb1 dependence of this transcript. Yet, this dependence was observed only in the NIL with already higher basal resistance. The complete cDNA of TaUGT12887 was reconstituted from available wheat genomic sequences, and a synthetic recoded gene was expressed in a toxin-sensitive strain of Saccharomyces cerevisiae. This gene conferred deoxynivalenol resistance, albeit much weaker than that observed with the previously characterized barley HvUGT13248.
Collapse
Affiliation(s)
- Wolfgang Schweiger
- Institute for Biotechnology in Plant Production, University of Natural Resources and Life Sciences, Konrad Lorenz Straße 20, 3430 Tulln, Austria.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|