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Zhao L, Bernardo A, Kong F, Zhao W, Dong Y, Lee H, Trick HN, Noller JR, Bai G. A Glutathione S-Transferase from Thinopyrum ponticum Confers Fhb7 Resistance to Fusarium Head Blight in Wheat. PHYTOPATHOLOGY 2024; 114:1458-1461. [PMID: 38709206 DOI: 10.1094/phyto-03-24-0106-sc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Fusarium head blight (FHB), mainly incited by Fusarium graminearum, has caused great losses in grain yield and quality of wheat globally. Fhb7, a major gene from 7E chromosome of Thinopyrum ponticum, confers broad resistance to multiple Fusarium species in wheat and has recently been cloned and identified as encoding a glutathione S-transferase (GST). However, some recent reports raised doubt about whether GST is the causal gene of Fhb7. To resolve the discrepancy and validate the gene function of GST in wheat, we phenotyped Fhb7 near-isogenic lines (Jimai22-Fhb7 versus Jimai22) and GST overexpressed lines for FHB resistance. Jimai22-Fhb7 showed significantly higher FHB resistance with a lower percentage of symptomatic spikelets, Fusarium-damaged kernels, and deoxynivalenol content than susceptible Jimai22 in three experiments. All the positive GST transgenic lines driven by either the maize ubiquitin promoter or its native promoter with high gene expression in the wheat cultivar 'Fielder' showed high FHB resistance. Only one maize ubiquitin promoter-driven transgenic line showed low GST expression and similar susceptibility to Fielder, suggesting that high GST expression confers Fhb7 resistance to FHB. Knockout of GST in the Jimai22-Fhb7 line using CRISPR-Cas9-based gene editing showed significantly higher FHB susceptibility compared with the nonedited control plants. Therefore, we confirmed GST as the causal gene of Fhb7 for FHB resistance. Considering its major effect on FHB resistance, pyramiding Fhb7 with other quantitative trait loci has a great potential to create highly FHB-resistant wheat cultivars.
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Affiliation(s)
- Lanfei Zhao
- Department of Agronomy, Kansas State University, 2004 Throckmorton Hall, Manhattan, KS 66506
| | - Amy Bernardo
- U.S. Department of Agriculture, Hard Winter Wheat Genetics Research Unit, 4008 Throckmorton Hall, Manhattan, KS 66506
| | - Fanmei Kong
- Department of Agronomy, Kansas State University, 2004 Throckmorton Hall, Manhattan, KS 66506
| | - Wei Zhao
- Department of Agronomy, Kansas State University, 2004 Throckmorton Hall, Manhattan, KS 66506
| | - Yanhong Dong
- Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108
| | - Hyeonju Lee
- Department of Plant Pathology, Kansas State University, 4024 Throckmorton Hall, Manhattan, KS 66506
| | - Harold N Trick
- Department of Plant Pathology, Kansas State University, 4024 Throckmorton Hall, Manhattan, KS 66506
| | - Jessica Rupp Noller
- Department of Plant Pathology, Kansas State University, 4024 Throckmorton Hall, Manhattan, KS 66506
| | - Guihua Bai
- Department of Agronomy, Kansas State University, 2004 Throckmorton Hall, Manhattan, KS 66506
- U.S. Department of Agriculture, Hard Winter Wheat Genetics Research Unit, 4008 Throckmorton Hall, Manhattan, KS 66506
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Xu S, Lyu Z, Zhang N, Li M, Wei X, Gao Y, Cheng X, Ge W, Li X, Bao Y, Yang Z, Ma X, Wang H, Kong L. Genetic mapping of the wheat leaf rust resistance gene Lr19 and development of translocation lines to break its linkage with yellow pigment. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:200. [PMID: 37639002 DOI: 10.1007/s00122-023-04425-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/24/2023] [Indexed: 08/29/2023]
Abstract
KEY MESSAGE The leaf rust resistance gene Lr19, which is present on the long arm of chromosome 7E1 in Thinopyrum ponticum, was mapped within a 0.3-cM genetic interval, and translocation lines were developed to break its linkage with yellow pigmentation The leaf rust resistance locus Lr19, which was transferred to wheat (Triticum aestivum) from its relative Thinopyrum ponticum in 1966, still confers broad resistance to most known races of the leaf rust pathogen Puccinia triticina (Pt) worldwide. However, this gene has not previously been fine-mapped, and its tight linkage with a gene causing yellow pigmentation has limited its application in bread wheat breeding. In this study, we genetically mapped Lr19 using a bi-parental population from a cross of two wheat-Th. ponticum substitution lines, the Lr19-carrying line 7E1(7D) and the leaf rust-susceptible line 7E2(7D). Genetic analysis of the F2 population and the F2:3 families showed that Lr19 was a single dominant gene. Genetic markers allowed the gene to be mapped within a 0.3-cM interval on the long arm of Th. ponticum chromosome 7E1, flanked by markers XsdauK3734 and XsdauK2839. To reduce the size of the Th. ponticum chromosome segment carrying Lr19, the Chinese Spring Ph1b mutant was employed to promote recombination between the homoeologous chromosomes of the wheat chromosome 7D and the Th. ponticum chromosome 7E1. Two translocation lines with short Th. ponticum chromosome fragments carrying Lr19 were identified using the genetic markers closely linked to Lr19. Both translocation lines were resistant to 16 Pt races collected throughout China. Importantly, the linkage between Lr19 and yellow pigment content was broken in one of the lines. Thus, the Lr19 linked markers and translocation lines developed in this study are valuable resources in marker-assisted selection as part of common wheat breeding programs.
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Affiliation(s)
- Shoushen Xu
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Zhongfan Lyu
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Na Zhang
- College of Plant Protection, Technological Innovation Center for Biological Control Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, 071001, Hebei, People's Republic of China
| | - Mingzhu Li
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Xinyi Wei
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Yuhang Gao
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Xinxin Cheng
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Wenyang Ge
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Xuefeng Li
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Yinguang Bao
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Zujun Yang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichun, People's Republic of China
| | - Xin Ma
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Hongwei Wang
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China.
| | - Lingrang Kong
- National Key Laboratory of Wheat Improvement, Shandong Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China.
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Hao Y, Pan Y, Chen W, Rashid MAR, Li M, Che N, Duan X, Zhao Y. Contribution of Duplicated Nucleotide-Binding Leucine-Rich Repeat (NLR) Genes to Wheat Disease Resistance. PLANTS (BASEL, SWITZERLAND) 2023; 12:2794. [PMID: 37570947 PMCID: PMC10420896 DOI: 10.3390/plants12152794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023]
Abstract
Wheat has a large and diverse repertoire of NLRs involved in disease resistance, with over 1500 NLRs detected in some studies. These NLR genes occur as singletons or clusters containing copies of NLRs from different phylogenetic clades. The number of NLRs and cluster size can differ drastically among ecotypes and cultivars. Primarily, duplication has led to the evolution and diversification of NLR genes. Among the various mechanisms, whole genome duplication (WGD) is the most intense and leading cause, contributing to the complex evolutionary history and abundant gene set of hexaploid wheat. Tandem duplication or recombination is another major mechanism of NLR gene expansion in wheat. The diversity and divergence of duplicate NLR genes are responsible for the broad-spectrum resistance of most plant species with limited R genes. Understanding the mechanisms underlying the rapid evolution and diversification of wheat NLR genes will help improve disease resistance in crops. The present review focuses on the diversity and divergence of duplicate NLR genes and their contribution to wheat disease resistance. Moreover, we provide an overview of disease resistance-associated gene duplication and the underlying strategies in wheat.
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Affiliation(s)
- Yongchao Hao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Yinghua Pan
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Wuying Chen
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Muhammad Abdul Rehman Rashid
- Department of Agricultural Sciences/Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Mengyao Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Naixiu Che
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Xu Duan
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Yan Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
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Song R, Cheng Y, Wen M, Song X, Wang T, Xia M, Sun H, Cheng M, Cui H, Yuan C, Liu X, Wang Z, Sun L, Wang H, Xiao J, Wang X. Transferring a new Fusarium head blight resistance locus FhbRc1 from Roegneria ciliaris into wheat by developing alien translocation lines. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:36. [PMID: 36897377 DOI: 10.1007/s00122-023-04278-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/07/2022] [Indexed: 06/18/2023]
Abstract
A new FHB resistance locus FhbRc1 was identified from the R. ciliaris chromosome 7Sc and transferred into common wheat by developing alien translocation lines. Fusarium head blight (FHB) caused by multiple Fusarium species is a globally destructive disease of common wheat. Exploring and utilization of resources with FHB resistance are the most effective and environmentally beneficial approach for the disease control. Roegneria ciliaris (Trin.) Nevski (2n = 4x = 28, ScScYcYc), a tetraploid wheat wild relative, possesses high resistance to FHB. In the previous study, a complete set of wheat-R. ciliaris disomic addition (DA) lines were evaluated for FHB resistance. DA7Sc had stable FHB resistance, which was confirmed to be derived from alien chromosome 7Sc. We tentatively designated the resistant locus as FhbRc1. For better utilization of the resistance in wheat breeding, we developed translocations by inducing chromosome structural aberrations using iron irradiation and the homologous pairing gene mutant ph1b. Totally, 26 plants having various 7Sc structural aberrations were identified. By marker analysis, a cytological map of 7Sc was constructed and 7Sc was dissected into 16 cytological bins. Seven alien chromosome aberration lines, which all had the bin 7Sc-1 on the long arm of 7Sc, showed enhanced FHB resistance. Thus, FhbRc1 was mapped to the distal region of 7ScL. A homozygous translocation line T4BS·4BL-7ScL (NAURC001) was developed. It showed improved FHB resistance, while had no obvious genetic linkage drag for the tested agronomic traits compared with the recurrent parent Alondra's. When transferring the FhbRc1 into three different wheat cultivars, the derived progenies having the translocated chromosome 4BS·4BL-7ScL all showed improved FHB resistance. This revealed the potential value of the translocation line in wheat breeding for FHB resistance.
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Affiliation(s)
- Rongrong Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Yifan Cheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Mingxing Wen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
- Zhenjiang Institute of Agricultural Science, Jurong, Jiangsu, 212400, China
| | - Xinying Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Tong Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Mengshuang Xia
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Haojie Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Menghao Cheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Huimin Cui
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Chunxia Yuan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Xiaoxue Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Zongkuan Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Li Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Haiyan Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China
| | - Jin Xiao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China.
| | - Xiue Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Cytogenetics Institute, Nanjing Agricultural University/JCIC-MCP, Nanjing, Jiangsu, 210095, China.
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Zhang W, Danilova T, Zhang M, Ren S, Zhu X, Zhang Q, Zhong S, Dykes L, Fiedler J, Xu S, Frels K, Wegulo S, Boehm J, Cai X. Cytogenetic and genomic characterization of a novel tall wheatgrass-derived Fhb7 allele integrated into wheat B genome. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:4409-4419. [PMID: 36201026 DOI: 10.1007/s00122-022-04228-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
We identified and integrated the novel FHB-resistant Fhb7The2 allele into wheat B genome and made it usable in both common and durum wheat breeding programs without yellow flour linkage drag. A novel tall wheatgrass-derived (Thinopyrum elongatum, genome EE) Fhb7 allele, designated Fhb7The2, was identified and integrated into the wheat B genome through a small 7B-7E translocation (7BS·7BL-7EL) involving the terminal regions of the long arms. Fhb7The2 conditions significant Type II resistance to Fusarium head blight (FHB) in wheat. Integration of Fhb7The2 into the wheat B genome makes this wild species-derived FHB resistance gene usable for breeding in both common and durum wheat. By contrast, other Fhb7 introgression lines involving wheat chromosome 7D can be utilized only in common wheat breeding programs, not in durum wheat. Additionally, we found that Fhb7The2 does not have the linkage drag of the yellow flour pigment gene that is tightly linked to the decaploid Th. ponticum-derived Fhb7 allele Fhb7Thp. This will further improve the utility of Fhb7The2 in wheat breeding. DNA sequence analysis identified 12 single nucleotide polymorphisms (SNPs) in Fhb7The2, Fhb7Thp, and another Th. elongatum-derived Fhb7 allele Fhb7The1, which led to seven amino acid conversions in Fhb7The2, Fhb7Thp, and Fhb7The1, respectively. However, no significant variation was observed in their predicted protein configuration as a glutathione transferase. Diagnostic DNA markers were developed specifically for Fhb7The2. The 7EL segment containing Fhb7The2 in the translocation chromosome 7BS·7BL-7EL exhibited a monogenic inheritance pattern in the wheat genetic background. This will enhance the efficacy of marker-assisted selection for Fhb7The2 introgression, pyramiding, and deployment in wheat germplasm and varieties.
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Affiliation(s)
- Wei Zhang
- Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding, Shanxi Agricultural University, Taiyuan, 030031, China
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Tatiana Danilova
- Wheat, Sorghum & Forage Research Unit, USDA-ARS, Lincoln, NE, 68583, USA
| | - Mingyi Zhang
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Shuangfeng Ren
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Xianwen Zhu
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Qijun Zhang
- Departments of Plant Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Shaobin Zhong
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108, USA
| | - Linda Dykes
- Cereal Crops Research Unit, Edward T. Schafer Agricultural Research Center, USDA-ARS, Fargo, ND, 58102, USA
| | - Jason Fiedler
- Cereal Crops Research Unit, Edward T. Schafer Agricultural Research Center, USDA-ARS, Fargo, ND, 58102, USA
| | - Steven Xu
- Crop Improvement and Genetics Research Unit, Western Regional Research Center, USDA-ARS, Albany, CA, 94710, USA
| | - Katherine Frels
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA
| | - Stephen Wegulo
- Department of Plant Pathology, University of Nebraska, Lincoln, NE, 68583, USA
| | - Jeffrey Boehm
- Wheat, Sorghum & Forage Research Unit, USDA-ARS, Lincoln, NE, 68583, USA
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA
| | - Xiwen Cai
- Wheat, Sorghum & Forage Research Unit, USDA-ARS, Lincoln, NE, 68583, USA.
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA.
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Steed A, King J, Grewal S, Yang CY, Clarke M, Devi U, King IP, Nicholson P. Identification of Fusarium Head Blight Resistance in Triticum timopheevii Accessions and Characterization of Wheat- T. timopheevii Introgression Lines for Enhanced Resistance. FRONTIERS IN PLANT SCIENCE 2022; 13:943211. [PMID: 35874002 PMCID: PMC9298666 DOI: 10.3389/fpls.2022.943211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
A diverse panel of wheat wild relative species was screened for resistance to Fusarium head blight (FHB) by spray inoculation. The great majority of species and accessions were susceptible or highly susceptible to FHB. Accessions of Triticum timopheevii (P95-99.1-1), Agropyron desertorum (9439957), and Elymus vaillantianus (531552) were highly resistant to FHB while additional accessions of T. timopheevii were found to be susceptible to FHB. A combination of spray and point inoculation assessments over two consecutive seasons indicated that the resistance in accession P95-99.1-1 was due to enhanced resistance to initial infection of the fungus (type 1 resistance), and not to reduction in spread (type 2 resistance). A panel of wheat-T. timopheevii (accession P95-99.1-1) introgression lines was screened for FHB resistance over two consecutive seasons using spray inoculation. Most introgression lines were similar in susceptibility to FHB as the wheat recipient (Paragon) but substitution of the terminal portion of chromosome 3BS of wheat with a similar-sized portion of 3G of T. timopheevii significantly enhanced FHB resistance in the wheat background.
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Affiliation(s)
- Andrew Steed
- Department of Crop Genetics, John Innes Centre, Norwich, United Kingdom
| | - Julie King
- Department of Plant and Crop Sciences, School of Biosciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Loughborough, United Kingdom
| | - Surbhi Grewal
- Department of Plant and Crop Sciences, School of Biosciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Loughborough, United Kingdom
| | - Cai-yun Yang
- Department of Plant and Crop Sciences, School of Biosciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Loughborough, United Kingdom
| | - Martha Clarke
- Department of Crop Genetics, John Innes Centre, Norwich, United Kingdom
| | - Urmila Devi
- Department of Plant and Crop Sciences, School of Biosciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Loughborough, United Kingdom
| | - Ian P. King
- Department of Plant and Crop Sciences, School of Biosciences, Nottingham BBSRC Wheat Research Centre, University of Nottingham, Loughborough, United Kingdom
| | - Paul Nicholson
- Department of Crop Genetics, John Innes Centre, Norwich, United Kingdom
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Identification of Three Novel QTLs Associated with Yellow Rust Resistance in Wheat (Triticum aestivum L.) Anong-179/Khaista-17 F2 Population. SUSTAINABILITY 2022. [DOI: 10.3390/su14127454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Wheat yellow rust (YR) caused by Puccinia striiformis is lethal for the leaf photosynthetic process, which substantially affects yield components and ultimately causes drastic yield reduction. The current study aimed to identify all-stage YR resistance linked QTLs in the best cross-combination. Experimental materials were phenotyped for disease severity in YR-hot spot area at Cereal Crops Research Institute, Pirsabak Pakistan in Khyber Pakhtunkhwa province in 2019 and 2020 and 2020 and 2021 Rabi seasons. The AN179 × KS17 was found to be the best cross combination, which showed high resistance to YR, whereas crosses AN179 × PK15 and PR129 × PK15 demonstrated susceptibility to YR with high disease severity. The recombinant inbred lines (RIL) F2 wheat population Annong-179/Khaista-17 demonstrated highly desirable YR resistance and yield component traits. Simple sequence repeat (SSR) markers were used to genotype the RIL population and their parents. Three novel QTLs linked to all-stage YR resistance were found on chromosomes 2BS, 3BS and 6BS, which explained 1.24, 0.54, and 0.75 phenotypic variance, respectively. Incorporation of the newly identified novel YR-resistance associated QTLs into hybridization wheat breeding program could be effective for marker-assisted selection of the improved and sustainable resistance.
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Gaire R, Brown-Guedira G, Dong Y, Ohm H, Mohammadi M. Genome-Wide Association Studies for Fusarium Head Blight Resistance and Its Trade-Off With Grain Yield in Soft Red Winter Wheat. PLANT DISEASE 2021; 105:2435-2444. [PMID: 33560886 DOI: 10.1094/pdis-06-20-1361-re] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Identification of quantitative trait loci for Fusarium head blight (FHB) resistance from different sources and pyramiding them into cultivars could provide effective protection against FHB. The objective of this study was to characterize a soft red winter wheat (SRWW) breeding population that has been subjected to intense germplasm introduction and alien introgression for FHB resistance in the past. The population was evaluated under misted FHB nurseries inoculated with Fusarium graminearum-infested corn spawn for two years. Phenotypic data included disease incidence (INC), disease severity (SEV), Fusarium damaged kernels (FDK), FHB index (FHBdx), and deoxynivalenol concentration (DON). Genome-wide association studies using 13,784 SNP markers identified 25 genomic regions at -logP ≥ 4.0 that were associated with five FHB-related traits. Of these 25, the marker trait associations that explained more than 5% phenotypic variation were localized on chromosomes 1A, 2B, 3B, 5A, 7A, 7B, and 7D, and from diverse sources including adapted SRWW lines such as Truman and Bess, and unadapted common wheat lines such as Ning7840 and Fundulea 201R. Furthermore, individuals with favorable alleles at the four loci Fhb1, Qfhb.nc-2B.1 (Q2B.1), Q7D.1, and Q7D.2 showed better FDK and DON scores (but not INC, SEV, and FHBdx) compared with other allelic combinations. Our data also showed while pyramiding multiple loci provides protection against FHB disease, it has a significant trade-off with grain yield.
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Affiliation(s)
- Rupesh Gaire
- Agronomy Department, Purdue University, West Lafayette, IN 47907
| | - Gina Brown-Guedira
- USDA-ARS Plant Science Research, Department of Crop Science, North Carolina State University, Raleigh, NC 27695
| | - Yanhong Dong
- Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108
| | - Herbert Ohm
- Agronomy Department, Purdue University, West Lafayette, IN 47907
| | - Mohsen Mohammadi
- Agronomy Department, Purdue University, West Lafayette, IN 47907
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Yang G, Boshoff WHP, Li H, Pretorius ZA, Luo Q, Li B, Li Z, Zheng Q. Chromosomal composition analysis and molecular marker development for the novel Ug99-resistant wheat-Thinopyrum ponticum translocation line WTT34. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:1587-1599. [PMID: 33677639 DOI: 10.1007/s00122-021-03796-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 02/16/2021] [Indexed: 05/12/2023]
Abstract
A novel Ug99-resistant wheat-Thinopyrum ponticum translocation line was produced, its chromosomal composition was analyzed and specific markers were developed. Stem rust caused by Puccinia graminis f. sp. tritici Eriks. & E. Henn (Pgt) has seriously threatened global wheat production since Ug99 race TTKSK was first detected in Uganda in 1998. Thinopyrum ponticum is near immune to Ug99 races and may be useful for enhancing wheat disease resistance. Therefore, developing new wheat-Th. ponticum translocation lines that are resistant to Ug99 is crucial. In this study, a novel wheat-Th. ponticum translocation line, WTT34, was produced. Seedling and field evaluation revealed that WTT34 is resistant to Ug99 race PTKST. The resistance was derived from the alien parent Th. ponticum. Screening WTT34 with markers linked to Sr24, Sr25, Sr26, Sr43, and SrB resulted in the amplification of different DNA fragments from Th. ponticum, implying WTT34 carries at least one novel stem rust resistance gene. Genomic in situ hybridization (GISH), multicolor fluorescence in situ hybridization (mc-FISH), and multi-color GISH (mc-GISH) analyses indicated that WTT34 carries a T5DS·5DL-Th translocation, which was consistent with wheat660K single-nucleotide polymorphism (SNP) array results. The SNP array also uncovered a deletion event in the terminal region of chromosome 1D. Additionally, the homeology between alien segments and the wheat chromosomes 2A and 5D was confirmed. Furthermore, 51 PCR-based markers derived from the alien segments of WTT34 were developed based on specific-locus amplified fragment sequencing (SLAF-seq). These markers may enable wheat breeders to rapidly trace Th. ponticum chromosomal segments carrying Ug99 resistance gene(s).
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Affiliation(s)
- Guotang Yang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Willem H P Boshoff
- Department of Plant Sciences, University of the Free State, Bloemfontein, 9300, South Africa
| | - Hongwei Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zacharias A Pretorius
- Department of Plant Sciences, University of the Free State, Bloemfontein, 9300, South Africa
| | - Qiaoling Luo
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Bin Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhensheng Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Qi Zheng
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
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10
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Haldar A, Tekieh F, Balcerzak M, Wolfe D, Lim D, Joustra K, Konkin D, Han F, Fedak G, Ouellet T. Introgression of Thinopyrum elongatum DNA fragments carrying resistance to fusarium head blight into Triticum aestivum cultivar Chinese Spring is associated with alteration of gene expression. Genome 2021; 64:1009-1020. [PMID: 33901415 DOI: 10.1139/gen-2020-0152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The tall wheatgrass species Thinopyrum elongatum carries on the long arm of chromosome 7E, a locus that contributes strongly to resistance to fusarium head blight (FHB), a devastating fungal disease affecting wheat crops in all temperate areas of the world. Introgression of Th. elongatum 7E chromatin into chromosome 7D of wheat was induced by the ph1b mutant of CS. Recombinants between chromosome 7E and wheat chromosome 7D, induced by the ph1b mutation, were monitored by a combination of molecular markers and phenotyping for FHB resistance. Progeny of up to five subsequent generations derived from two lineages, 64-8 and 32-5, were phenotyped for FHB symptoms and genotyped using published and novel 7D- and 7E-specific markers. Fragments from the distal end of 7EL, still carrying FHB resistance and estimated to be less than 114 and 66 Mbp, were identified as introgressed into wheat chromosome arm 7DL of progeny derived from 64-8 and 32-5, respectively. Gene expression analysis revealed variation in the expression levels of genes from the distal ends of 7EL and 7DL in the introgressed progeny. The 7EL introgressed material will facilitate the use of the 7EL FHB resistance locus in wheat breeding programs.
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Affiliation(s)
- Aparna Haldar
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.,Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Farideh Tekieh
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.,Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Margaret Balcerzak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Danielle Wolfe
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - DaEun Lim
- Department of Biochemistry, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Kelsey Joustra
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.,Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - David Konkin
- Aquatic and Crop Resource Development, National Research Council of Canada, Saskatoon, SK S7N 0W9, Canada
| | - Fangpu Han
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences No.1, Beijing, China
| | - George Fedak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Thérèse Ouellet
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
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11
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Fedak G, Chi D, Wolfe D, Ouellet T, Cao W, Han F, Xue A. Transfer of fusarium head blight resistance from Thinopyrum elongatum to bread wheat cultivar Chinese Spring. Genome 2021; 64:997-1008. [PMID: 33901404 DOI: 10.1139/gen-2020-0151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The diploid form of tall wheatgrass, Thinopyrum elongatum (Host) D.R. Dewey (2n = 2x = 14, EE genome), has a high level of resistance to fusarium head blight. The symptoms did not spread beyond the inoculated florets following point inoculation. Using a series of E-genome chromosome additions in a bread wheat cultivar Chinese Spring (CS) background, the resistance was found to be localized to the long arm of chromosome 7E. The CS mutant ph1b was used to induce recombination between chromosome 7E, present in the 7E(7D) substitution and homoeologous wheat chromosomes. Multivalent chromosome associations were detected in the BC1 hybrids, confirming the effectiveness of the ph1b mutant. Genetic markers specific for chromosome 7E were used to estimate the size of the 7E introgression in the wheat genome. Using single sequence repeat (SSR) markers specific for homoeologous wheat chromosome 7, introgressions were detected on wheat chromosomes 7A, 7B, and 7D. Some of the introgression lines were resistant to fusarium head blight.
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Affiliation(s)
- George Fedak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Dawn Chi
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Danielle Wolfe
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Thérèse Ouellet
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Wenguang Cao
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Fangpu Han
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences No.1, Beijing, China
| | - Allen Xue
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
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12
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Wang H, Sun S, Ge W, Zhao L, Hou B, Wang K, Lyu Z, Chen L, Xu S, Guo J, Li M, Su P, Li X, Wang G, Bo C, Fang X, Zhuang W, Cheng X, Wu J, Dong L, Chen W, Li W, Xiao G, Zhao J, Hao Y, Xu Y, Gao Y, Liu W, Liu Y, Yin H, Li J, Li X, Zhao Y, Wang X, Ni F, Ma X, Li A, Xu SS, Bai G, Nevo E, Gao C, Ohm H, Kong L. Horizontal gene transfer of Fhb7 from fungus underlies Fusarium head blight resistance in wheat. Science 2020; 368:science.aba5435. [PMID: 32273397 DOI: 10.1126/science.aba5435] [Citation(s) in RCA: 290] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/26/2020] [Indexed: 12/22/2022]
Abstract
Fusarium head blight (FHB), a fungal disease caused by Fusarium species that produce food toxins, currently devastates wheat production worldwide, yet few resistance resources have been discovered in wheat germplasm. Here, we cloned the FHB resistance gene Fhb7 by assembling the genome of Thinopyrum elongatum, a species used in wheat distant hybridization breeding. Fhb7 encodes a glutathione S-transferase (GST) and confers broad resistance to Fusarium species by detoxifying trichothecenes through de-epoxidation. Fhb7 GST homologs are absent in plants, and our evidence supports that Th. elongatum has gained Fhb7 through horizontal gene transfer (HGT) from an endophytic Epichloë species. Fhb7 introgressions in wheat confers resistance to both FHB and crown rot in diverse wheat backgrounds without yield penalty, providing a solution for Fusarium resistance breeding.
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Affiliation(s)
- Hongwei Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
| | - Silong Sun
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wenyang Ge
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Lanfei Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Bingqian Hou
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Kai Wang
- Novogene Bioinformatics Institute, Beijing 100083, PR China
| | - Zhongfan Lyu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Liyang Chen
- Novogene Bioinformatics Institute, Beijing 100083, PR China
| | - Shoushen Xu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jun Guo
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, PR China
| | - Min Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Peisen Su
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xuefeng Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Guiping Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Cunyao Bo
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiaojian Fang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wenwen Zhuang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xinxin Cheng
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jianwen Wu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Luhao Dong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wuying Chen
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wen Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Guilian Xiao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jinxiao Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yongchao Hao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Ying Xu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yu Gao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Wenjing Liu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yanhe Liu
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Huayan Yin
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, PR China
| | - Xiang Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yan Zhao
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiaoqian Wang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Fei Ni
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xin Ma
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Anfei Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Steven S Xu
- USDA-ARS, Cereal Crops Research Unit, Edward T. Schafer Agricultural Research Center, Fargo, ND 58102, USA
| | - Guihua Bai
- USDA-ARS, Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA
| | - Eviatar Nevo
- Institute of Evolution, University of Haifa, Mount Carmel, Haifa 3498838, Israel
| | - Caixia Gao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Herbert Ohm
- Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Lingrang Kong
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
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13
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Wang B, Li X, Chen W, Kong L. Isobaric tags for relative and absolute quantification-based proteomic analysis of defense responses triggered by the fungal pathogen Fusarium graminearum in wheat. J Proteomics 2019; 207:103442. [PMID: 31326557 DOI: 10.1016/j.jprot.2019.103442] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/22/2019] [Accepted: 07/07/2019] [Indexed: 01/07/2023]
Abstract
Fusarium head blight (FHB) is a devastating disease worldwide that is predominantly caused by the fungal pathogen Fusarium graminearum. The aim of this work was to study differentially abundant protein species of near-isogenic lines A061-3 and A061-4 with the final goal of elucidating the molecular mechanisms of their differential resistance to F. graminearum. The objectives were accomplished using isobaric tags for relative and absolute quantification (iTRAQ) with mass spectrometry (MS). Lines A061-3 and A061-4 were resistant and susceptible to F. graminearum, respectively. At four post-inoculation points, 11,070 protein species were identified, of which 762 were differentially abundant. Gene Ontology enrichment analysis showed that most differentially abundant protein species participated in 18 biological processes after inoculation. Further analysis demonstrated that crucial metabolic pathways like plant-pathogen interaction had increased abundance. Real-time quantitative PCR (qRT-PCR) analysis revealed increased gene products of eight selected genes in plant-pathogen interaction. This investigation provides a basic bioinformatics-based characterization of differentially abundant protein species during early stages against F. graminearum. SIGNIFICANCE: FHB leads to severe yield loss and reduction in grain quality in wheat and other small grain cereals. Although extensive studies have focused on wheat resistance against F. graminearum, the molecular mechanism of FHB resistance in wheat remains to be further elucidated. In the present study, Kyoto Encyclopedia of Genes and Genomes analysis indicated that ten pathways were putatively associated with FHB resistance. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) showed that a valuable set of differentially abundant protein species including pathogenesis-related protein species were identified for further discovery of candidate genes for FHB resistance. This investigation provides new insights into the molecular mechanisms associated with FHB resistance and as well as a foundation for future studies.
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Affiliation(s)
- Biao Wang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Xuefeng Li
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Wuying Chen
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China
| | - Lingrang Kong
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China.
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14
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Kuzmanović L, Mandalà G, Tundo S, Ciorba R, Frangella M, Ruggeri R, Rossini F, Gevi F, Rinalducci S, Ceoloni C. Equipping Durum Wheat- Thinopyrum ponticum Recombinant Lines With a Thinopyrum elongatum Major QTL for Resistance to Fusarium Diseases Through a Cytogenetic Strategy. FRONTIERS IN PLANT SCIENCE 2019; 10:1324. [PMID: 31695716 PMCID: PMC6817583 DOI: 10.3389/fpls.2019.01324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/24/2019] [Indexed: 05/08/2023]
Abstract
Prompted by recent changes in climate trends, cropping areas, and management practices, Fusarium head blight (FHB), a threatening disease of cereals worldwide, is also spreading in unusual environments, where bread wheat (BW) and durum wheat (DW) are largely cultivated. The scarcity of efficient resistance sources within adapted germplasm is particularly alarming for DW, mainly utilized for human consumption, which is therefore at high risk of kernel contamination by health-dangerous mycotoxins (e.g., deoxynivalenol = DON). To cope with this scenario, we looked outside the wheat primary gene pool and recently transferred an exceptionally effective FHB resistance QTL (Fhb-7EL) from Thinopyrum elongatum 7EL chromosome arm onto a Thinopyrum ponticum 7el1L arm segment, containing additional valuable genes (including Lr19 for leaf rust resistance and Yp for yellow pigment content), distally inserted onto 7DL of BW lines. Two such lines were crossed with two previously developed DW-Th. ponticum recombinants, having 7el1L distal portions on 7AL arms. Genomic in situ hybridization (GISH) analysis showed homologous pairing, which is enabled by 7el1L segments common to the BW and DW recombinant chromosomes, to occur with 42-78% frequency, depending on the shared 7el1L amount. Aided by 7EL/7el1L-linked markers, 7EL+7el1L tetraploid recombinant types were isolated in BC1 progenies to DW of all cross combinations. Homozygous 7EL+7el1L recombinant plants and null segregates selected in BC2F2 progenies were challenged by Fusarium graminearum spike inoculation to verify the Fhb-7EL efficacy in DW. Infection outcomes confirmed previous observations in BW, with >90% reduction of disease severity associated with Fhb-7EL presence vs. its absence. The same differential effect was detected on seed set and weight of inoculated spikes, with genotypes lacking Fhb-7EL having ∼80% reduction compared with unaffected values of Fhb-7EL carriers. In parallel, DON content in flour extracts of resistant recombinants averaged 0.67 ppm, a value >800 times lower than that of susceptible controls. Furthermore, as observed in BW, the same Fhb-7EL also provided the novel DW recombinants with resistance to Fusarium crown rot (∼60% symptom reduction) as from seedling infection with Fusarium culmorum. Through alien segment stacking, we succeeded in equipping DW with a very effective barrier against different Fusarium diseases and other positive attributes for crop security and safety.
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Affiliation(s)
- Ljiljana Kuzmanović
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Giulia Mandalà
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Silvio Tundo
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Roberto Ciorba
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Matteo Frangella
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Roberto Ruggeri
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Francesco Rossini
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Federica Gevi
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
| | - Sara Rinalducci
- Department of Ecological and Biological Sciences (DEB), University of Tuscia, Viterbo, Italy
| | - Carla Ceoloni
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
- *Correspondence: Carla Ceoloni,
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15
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Zhao L, Ma X, Su P, Ge W, Wu H, Guo X, Li A, Wang H, Kong L. Cloning and characterization of a specific UDP-glycosyltransferase gene induced by DON and Fusarium graminearum. PLANT CELL REPORTS 2018; 37:641-652. [PMID: 29372381 DOI: 10.1007/s00299-018-2257-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/11/2018] [Indexed: 05/09/2023]
Abstract
TaUGT5: can reduce the proliferation and destruction of F. graminearum and enhance the ability of FHB resistance in wheat. Deoxynivalenol (DON) is one of the most important toxins produced by Fusarium species that enhances the spread of the pathogen in the host. As a defense, the UDP-glycosyltransferase (UGT) family has been deduced to transform DON into the less toxic form DON-3-O-glucoside (D3G), but the specific gene member in wheat that is responsible for Fusarium head blight (FHB) resistance has been little investigated and proved. In this study, a DON and Fusarium graminearum responsive gene TaUGT5, which is specific for resistant cultivars, was cloned with a 1431 bp open reading frame (ORF) encoding 476 amino acids in Sumai3. TaUGT5 is located on chromosome 2B, which has been confirmed in nulli-tetrasomic lines of Chinese Spring (CS) and is solely expressed among three homologs on the A, B and D genomes. Over-expression of this gene in Arabidopsis conferred enhanced tolerance when grown on agar plates that contain DON. Similarly, the coleoptiles of wheat over-expressing TaUGT5 showed more resistance to F. graminearum, evidencing reduced proliferation and destruction of plant tissue by the pathogen. However, the disease resistance in spikes was not as significant as that on coleoptile compared with wild-type plants. A subcellular localization analysis revealed that TaUGT5 was localized on the plasma membrane of tobacco leaf epidermal cells. It is possible that TaUGT5 could enhance tolerance to DON, protect the plant cell from the pathogen infection and result in better maintenance of the cell structure, which slows down pathogen proliferation in plant tissue.
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Affiliation(s)
- Lanfei Zhao
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China
| | - Xin Ma
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China
| | - Peisen Su
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China
| | - Wenyang Ge
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China
| | - Hongyan Wu
- Shandong AgrUnir. Fert. SciTech. Co., Ltd, Feicheng, 271600, People's Republic of China
| | - Xiuxiu Guo
- Shandong Academy of Agricultural Sciences, Jinan, 250100, People's Republic of China
| | - Anfei Li
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China
| | - Hongwei Wang
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China.
| | - Lingrang Kong
- State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, People's Republic of China.
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16
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Li D, Long D, Li T, Wu Y, Wang Y, Zeng J, Xu L, Fan X, Sha L, Zhang H, Zhou Y, Kang H. Cytogenetics and stripe rust resistance of wheat- Thinopyrum elongatum hybrid derivatives. Mol Cytogenet 2018; 11:16. [PMID: 29441130 PMCID: PMC5800275 DOI: 10.1186/s13039-018-0366-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 01/31/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Amphidiploids generated by distant hybridization are commonly used as genetic bridge to transfer desirable genes from wild wheat species into cultivated wheat. This method is typically used to enhance the resistance of wheat to biotic or abiotic stresses, and to increase crop yield and quality. Tetraploid Thinopyrum elongatum exhibits strong adaptability, resistance to stripe rust and Fusarium head blight, and tolerance to salt, drought, and cold. RESULTS In the present study, we produced hybrid derivatives by crossing and backcrossing the Triticum durum-Th. elongatum partial amphidiploid (Trititrigia 8801, 2n = 6× = 42, AABBEE) with wheat cultivars common to the Sichuan Basin. By means of cytogenetic and disease resistance analyses, we identified progeny harboring alien chromosomes and measured their resistance to stripe rust. Hybrid progenies possessed chromosome numbers ranging from 40 to 47 (mean = 42.72), with 40.0% possessing 42 chromosomes. Genomic in situ hybridization revealed that the number of alien chromosomes ranged from 1 to 11. Out of the 50 of analyzed lines, five represented chromosome addition (2n = 44 = 42 W + 2E) and other five were chromosome substitution lines (2n = 42 = 40 W + 2E). Importantly, a single chromosome derived from wheat-Th. elongatum intergenomic Robertsonian translocations chromosome was occurred in 12 lines. Compared with the wheat parental cultivars ('CN16' and 'SM482'), the majority (70%) of the derivative lines were highly resistant to strains of stripe rust pathogen known to be prevalent in China. CONCLUSION The findings suggest that these hybrid-derivative lines with stripe rust resistance could potentially be used as germplasm sources for further wheat improvement.
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Affiliation(s)
- Daiyan Li
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Dan Long
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Tinghui Li
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Yanli Wu
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Yi Wang
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Jian Zeng
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Lili Xu
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Xing Fan
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Lina Sha
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Haiqin Zhang
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Yonghong Zhou
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
| | - Houyang Kang
- Triticeae Research Institute, Sichuan Agricultural University, 211 Huimin Road, Wenjiang, Chengdu, Sichuan 611130 China
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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]
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18
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Harnessing Genetic Diversity of Wild Gene Pools to Enhance Wheat Crop Production and Sustainability: Challenges and Opportunities. DIVERSITY-BASEL 2017. [DOI: 10.3390/d9040055] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Wild species are extremely rich resources of useful genes not available in the cultivated gene pool. For species providing staple food to mankind, such as the cultivated Triticum species, including hexaploid bread wheat (Triticum aestivum, 6x) and tetraploid durum wheat (T. durum, 4x), widening the genetic base is a priority and primary target to cope with the many challenges that the crop has to face. These include recent climate changes, as well as actual and projected demographic growth, contrasting with reduction of arable land and water reserves. All of these environmental and societal modifications pose major constraints to the required production increase in the wheat crop. A sustainable approach to address this task implies resorting to non-conventional breeding strategies, such as “chromosome engineering”. This is based on cytogenetic methodologies, which ultimately allow for the incorporation into wheat chromosomes of targeted, and ideally small, chromosomal segments from the genome of wild relatives, containing the gene(s) of interest. Chromosome engineering has been successfully applied to introduce into wheat genes/QTL for resistance to biotic and abiotic stresses, quality attributes, and even yield-related traits. In recent years, a substantial upsurge in effective alien gene exploitation for wheat improvement has come from modern technologies, including use of molecular markers, molecular cytogenetic techniques, and sequencing, which have greatly expanded our knowledge and ability to finely manipulate wheat and alien genomes. Examples will be provided of various types of stable introgressions, including pyramiding of different alien genes/QTL, into the background of bread and durum wheat genotypes, representing valuable materials for both species to respond to the needed novelty in current and future breeding programs. Challenging contexts, such as that inherent to the 4x nature of durum wheat when compared to 6x bread wheat, or created by presence of alien genes affecting segregation of wheat-alien recombinant chromosomes, will also be illustrated.
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Ceoloni C, Forte P, Kuzmanović L, Tundo S, Moscetti I, De Vita P, Virili ME, D'Ovidio R. Cytogenetic mapping of a major locus for resistance to Fusarium head blight and crown rot of wheat on Thinopyrum elongatum 7EL and its pyramiding with valuable genes from a Th. ponticum homoeologous arm onto bread wheat 7DL. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2017; 130:2005-2024. [PMID: 28656363 DOI: 10.1007/s00122-017-2939-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 06/15/2017] [Indexed: 05/19/2023]
Abstract
A major locus for resistance to different Fusarium diseases was mapped to the most distal end of Th. elongatum 7EL and pyramided with Th. ponticum beneficial genes onto wheat 7DL. Perennial Triticeae species of the Thinopyrum genus are among the richest sources of valuable genes/QTL for wheat improvement. One notable and yet unexploited attribute is the exceptionally effective resistance to a major wheat disease worldwide, Fusarium head blight, associated with the long arm of Thinopyrum elongatum chromosome 7E (7EL). We targeted the transfer of the temporarily designated Fhb-7EL locus into bread wheat, pyramiding it with a Th. ponticum 7el1L segment stably inserted into the 7DL arm of wheat line T4. Desirable genes/QTL mapped along the T4 7el1L segment determine resistance to wheat rusts (Lr19, Sr25) and enhancement of yield-related traits. Mapping of the Fhb-7EL QTL, prerequisite for successful pyramiding, was established here on the basis of a bioassay with Fusarium graminearum of different 7EL-7el1L bread wheat recombinant lines. These were obtained without resorting to any genetic pairing promotion, but relying on the close 7EL-7el1L homoeology, resulting in 20% pairing frequency between the two arms. Fhb-7EL resided in the telomeric portion and resistant recombinants could be isolated with useful combinations of more proximally located 7el1L genes/QTL. The transferred Fhb-7EL locus was shown to reduce disease severity and fungal biomass in grains of infected recombinants by over 95%. The same Fhb-7EL was, for the first time, proved to be effective also against F. culmorum and F. pseudograminearum, predominant agents of crown rot. Prebreeding lines possessing a suitable 7EL-7el1L gene/QTL assembly showed very promising yield performance in preliminary field tests.
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Affiliation(s)
- Carla Ceoloni
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy.
| | - Paola Forte
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy
| | - Ljiljana Kuzmanović
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy
| | - Silvio Tundo
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy
| | - Ilaria Moscetti
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy
| | | | - Maria Elena Virili
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy
| | - Renato D'Ovidio
- Department of Agricultural and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy
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Dai Y, Duan Y, Liu H, Chi D, Cao W, Xue A, Gao Y, Fedak G, Chen J. Molecular Cytogenetic Characterization of two Triticum-Secale-Thinopyrum Trigeneric Hybrids Exhibiting Superior Resistance to Fusarium Head Blight, Leaf Rust, and Stem Rust Race Ug99. FRONTIERS IN PLANT SCIENCE 2017; 8:797. [PMID: 28555151 PMCID: PMC5430057 DOI: 10.3389/fpls.2017.00797] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 04/27/2017] [Indexed: 05/29/2023]
Abstract
Fusarium head blight (FHB), leaf rust, and stem rust are the most destructive fungal diseases in current world wheat production. The diploid wheatgrass, Thinopyrum elongatum (Host) Dewey (2n = 2x = 14, EE) is an excellent source of disease resistance genes. Two new Triticum-Secale-Thinopyrum trigeneric hybrids were derived from a cross between a hexaploid triticale (X Triticosecale Wittmack, 2n = 6x = 42, AABBRR) and a hexaploid Triticum trititrigia (2n = 6x = 42, AABBEE), were produced and analyzed using genomic in situ hybridization and molecular markers. The results indicated that line RE21 contained 14 A-chromosomes, 14 B-chromosomes, three pairs of R-chromosomes (4R, 6R, and 7R), and four pairs of E-chromosomes (1E, 2E, 3E, and 5E) for a total chromosome number of 2n = 42. Line RE62 contained 14 A-chromosomes, 14 B-chromosomes, six pairs of R-chromosomes, and one pair of translocation chromosomes between chromosome 5R and 5E, for a total chromosome number of 2n = 42. At the seedling and adult growth stages under greenhouse conditions, line RE21 showed high levels of resistance to FHB, leaf rust, and stem rust race Ug99, and line RE62 was highly resistant to leaf rust and stem rust race Ug99. These two lines (RE21 and RE62) display superior disease resistance characteristics and have the potential to be utilized as valuable germplasm sources for future wheat improvement.
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Affiliation(s)
- Yi Dai
- College of Bioscience and Biotechnology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou UniversityYangzhou, China
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, OttawaON, Canada
| | - Yamei Duan
- College of Bioscience and Biotechnology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou UniversityYangzhou, China
| | - Huiping Liu
- College of Bioscience and Biotechnology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou UniversityYangzhou, China
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, OttawaON, Canada
| | - Dawn Chi
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, OttawaON, Canada
| | - Wenguang Cao
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, OttawaON, Canada
| | - Allen Xue
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, OttawaON, Canada
| | - Yong Gao
- College of Bioscience and Biotechnology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou UniversityYangzhou, China
- Jiangsu Key Laboratories of Crop Genetics and Physiology, Plant Functional Genomics of the Ministry of Education, Yangzhou UniversityYangzhou, China
| | - George Fedak
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, OttawaON, Canada
| | - Jianmin Chen
- College of Bioscience and Biotechnology, Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou UniversityYangzhou, China
- Jiangsu Key Laboratories of Crop Genetics and Physiology, Plant Functional Genomics of the Ministry of Education, Yangzhou UniversityYangzhou, China
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21
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Lou H, Dong L, Zhang K, Wang DW, Zhao M, Li Y, Rong C, Qin H, Zhang A, Dong Z, Wang D. High-throughput mining of E-genome-specific SNPs for characterizingThinopyrum elongatumintrogressions in common wheat. Mol Ecol Resour 2017; 17:1318-1329. [DOI: 10.1111/1755-0998.12659] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 12/25/2016] [Accepted: 01/30/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Haijuan Lou
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Lingli Dong
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Kunpu Zhang
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Da-Wei Wang
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Maolin Zhao
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Yiwen Li
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Chaowu Rong
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Huanju Qin
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Aimin Zhang
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Zhenying Dong
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Daowen Wang
- The State Key Laboratory of Plant Cell and Chromosome Engineering; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
- The Collaborative Innovation Center for Grain Crops; Henan Agricultural University; Zhengzhou 450002 China
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22
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Wang Y, Quan W, Peng N, Wang C, Yang X, Liu X, Zhang H, Chen C, Ji W. Molecular cytogenetic identification of a wheat–Aegilops geniculata Roth 7Mg disomic addition line with powdery mildew resistance. MOLECULAR BREEDING 2016; 36:40. [PMID: 0 DOI: 10.1007/s11032-016-0463-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
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23
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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.
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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.
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Guo J, He F, Cai JJ, Wang HW, Li AF, Wang HG, Kong LR. Molecular and Cytological Comparisons of Chromosomes 7el₁, 7el₂, 7E(e), and 7E ⁱ Derived from Thinopyrum. Cytogenet Genome Res 2015; 145:68-74. [PMID: 25968454 DOI: 10.1159/000381838] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2015] [Indexed: 11/19/2022] Open
Abstract
Thinopyrum chromosomes 7el1, 7el2, 7E(e), and 7E(i), homoeologous to group 7 chromosomes of common wheat (Triticum aestivum), were determined to have many useful agronomical traits for wheat improvement. To analyze the genetic relationships among the 4 Thinopyrum 7E chromosomes, the conserved orthologous set markers, genomic in situ hybridization (GISH), and meiotic chromosome pairing were used in this study. The unweighted pair-group method with arithmetical averages (UPGMA) analysis indicated that 7el1, derived from T. ponticum, and 7E(i), derived from T. intermedium, were the most closely related. 7el2, derived from T. ponticum, was relatively distant from the 7el1-7E(i) complex. While 7E(e), derived from T. elongatum, was more distantly related to 7el1, 7el2, and 7E(i). This is the first report showing that 7el1 and 7E(i) may be similar, which could be explained by the similar chromosome signal distribution revealed by GISH as well as UPGMA analysis revealed by both molecular markers and the highest frequency of meiotic pairing. The newly developed genome-specific molecular markers may be useful for marker-assisted selection of Lr19, Bdv3, and Fhblop.
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Affiliation(s)
- Jun Guo
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, PR China
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25
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Niu Z, Klindworth DL, Yu G, L Friesen T, Chao S, Jin Y, Cai X, Ohm JB, Rasmussen JB, Xu SS. Development and characterization of wheat lines carrying stem rust resistance gene Sr43 derived from Thinopyrum ponticum. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2014; 127:969-80. [PMID: 24504553 DOI: 10.1007/s00122-014-2272-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 01/17/2014] [Indexed: 05/19/2023]
Abstract
Wheat lines carrying Ug99-effective stem rust resistance gene Sr43 on shortened alien chromosome segments were produced using chromosome engineering, and molecular markers linked to Sr43 were identified for marker-assisted selection. Stem rust resistance gene Sr43, transferred into common wheat (Triticum aestivum) from Thinopyrum ponticum, is an effective gene against stem rust Ug99 races. However, this gene has not been used in wheat breeding because it is located on a large Th. ponticum 7el(2) chromosome segment, which also harbors genes for undesirable traits. The objective of this study was to eliminate excessive Th. ponticum chromatin surrounding Sr43 to make it usable in wheat breeding. The two original translocation lines KS10-2 and KS24-1 carrying Sr43 were first analyzed using simple sequence repeat (SSR) markers and florescent genomic in situ hybridization. Six SSR markers located on wheat chromosome arm 7DL were identified to be associated with the Th. ponticum chromatin in KS10-2 and KS24-1. The results confirmed that KS24-1 is a 7DS·7el(2)L Robertsonian translocation as previously reported. However, KS10-2, which was previously designated as a 7el(2)S·7el(2)L-7DL translocation, was identified as a 7DS-7el(2)S·7el(2)L translocation. To reduce the Th. ponticum chromatin carrying Sr43, a BC(2)F(1) population (Chinese Spring//Chinese Spring ph1bph1b*2/KS10-2) containing ph1b-induced homoeologous recombinants was developed, tested with stem rust, and genotyped with the six SSR markers identified above. Two new wheat lines (RWG33 and RWG34) carrying Sr43 on shortened alien chromosome segments (about 17.5 and 13.7 % of the translocation chromosomes, respectively) were obtained, and two molecular markers linked to Sr43 in these lines were identified. The new wheat lines with Sr43 and the closely linked markers provide new resources for improving resistance to Ug99 and other races of stem rust in wheat.
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Affiliation(s)
- Z Niu
- Northern Crop Science Laboratory, Cereal Crops Research Unit, USDA-ARS, 1605 Albrecht Blvd. North, Fargo, ND, 58102-2765, USA
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Development and characterization of a Psathyrostachys huashanica Keng 7Ns chromosome addition line with leaf rust resistance. PLoS One 2013; 8:e70879. [PMID: 23976963 PMCID: PMC3747159 DOI: 10.1371/journal.pone.0070879] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 06/24/2013] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to characterize a Triticum aestivum-Psathyrostachys huashanica Keng (2n = 2x = 14, NsNs) disomic addition line 2-1-6-3. Individual line 2-1-6-3 plants were analyzed using cytological, genomic in situ hybridization (GISH), EST-SSR, and EST-STS techniques. The alien addition line 2-1-6-3 was shown to have two P. huashanica chromosomes, with a meiotic configuration of 2n = 44 = 22 II. We tested 55 EST-SSR and 336 EST-STS primer pairs that mapped onto seven different wheat chromosomes using DNA from parents and the P. huashanica addition line. One EST-SSR and nine EST-STS primer pairs indicated that the additional chromosome of P. huashanica belonged to homoeologous group 7, the diagnostic fragments of five EST-STS markers (BE404955, BE591127, BE637663, BF482781 and CD452422) were cloned, sequenced and compared. The results showed that the amplified polymorphic bands of P. huashanica and disomic addition line 2-1-6-3 shared 100% sequence identity, which was designated as the 7Ns disomic addition line. Disomic addition line 2-1-6-3 was evaluated to test the leaf rust resistance of adult stages in the field. We found that one pair of the 7Ns genome chromosomes carried new leaf rust resistance gene(s). Moreover, wheat line 2-1-6-3 had a superior numbers of florets and grains per spike, which were associated with the introgression of the paired P. huashanica chromosomes. These high levels of disease resistance and stable, excellent agronomic traits suggest that this line could be utilized as a novel donor in wheat breeding programs.
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Song L, Jiang L, Han H, Gao A, Yang X, Li L, Liu W. Efficient induction of Wheat-agropyron cristatum 6P translocation lines and GISH detection. PLoS One 2013; 8:e69501. [PMID: 23874966 PMCID: PMC3707604 DOI: 10.1371/journal.pone.0069501] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 06/09/2013] [Indexed: 01/02/2023] Open
Abstract
The narrow genetic background restricts wheat yield and quality improvement. The
wild relatives of wheat are the huge gene pools for wheat improvement and can
broaden its genetic basis. Production of wheat-alien translocation lines can
transfer alien genes to wheat. So it is important to develop an efficient method
to induce wheat-alien chromosome translocation. Agropyroncristatum (P genome)
carries many potential genes beneficial to disease resistance, stress tolerance
and high yield. Chromosome 6P possesses the desirable genes
exhibiting good agronomic traits, such as high grain number per spike, powdery
mildew resistance and stress tolerance. In this study, the wheat-A. cristatum disomic addition was
used as bridge material to produce wheat-A. cristatum translocation lines
induced by 60Co-γirradiation. The results of genomic in
situ hybridization showed that 216 plants contained alien
chromosome translocation among 571 self-pollinated progenies. The frequency of
translocation was 37.83%, much higher than previous reports. Moreover, various
alien translocation types were identified. The analysis of M2 showed
that 62.5% of intergeneric translocation lines grew normally without losing the
translocated chromosomes. The paper reported a high efficient technical method
for inducing alien translocation between wheat and Agropyroncristatum. Additionally, these
translocation lines will be valuable for not only basic research on genetic
balance, interaction and expression of different chromosome segments of wheat
and alien species, but also wheat breeding programs to utilize superior
agronomic traits and good compensation effect from alien chromosomes.
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Affiliation(s)
- Liqiang Song
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Lili Jiang
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Haiming Han
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Ainong Gao
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Xinming Yang
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
| | - Lihui Li
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
- * E-mail: (WL)
| | - Weihua Liu
- National Key Facility for Crop Gene Resources and Genetic
Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural
Sciences, Beijing, China
- (LL)
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Chen S, Huang Z, Dai Y, Qin S, Gao Y, Zhang L, Gao Y, Chen J. The development of 7E chromosome-specific molecular markers for Thinopyrum elongatum based on SLAF-seq technology. PLoS One 2013; 8:e65122. [PMID: 23762296 PMCID: PMC3677899 DOI: 10.1371/journal.pone.0065122] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 04/22/2013] [Indexed: 11/18/2022] Open
Abstract
Thinopyrum elongatum is an important relative of wheat, it is favored by many researchers for the disease resistant genes that exist in its E genome. Some studies have showed that the 7E chromosome of Th. elongatum contains resistance genes related to Fusarium head blight and wheat rust. Therefore, developing 7E chromosome-specific molecular markers linked to resistance genes will provide an important tool for exploring and using the resistant genes of Th. elongatum. In addition, it would greatly contribute in the effort to cultivate disease-resistant wheat varieties. Featured in high throughput, high-accuracy and low-cost, SLAF-seq technology has been widely used in molecular breeding, system evolution, and germplasm resource detection. Based on SLAF-seq, 518 specific fragments on the 7E chromosome of Th. elongatum were successfully amplified. A total of 135 primers were designed according to 135 randomly selected fragments, and 89 specific molecular markers of Th. elongatum were developed, with efficiencies up to 65.9%. These markers were all detected in a variety of materials, and they are all proved to be specific and stable. These markers can be used not only for detecting the 7E chromosome of Th. elongatum but also for providing an important theoretical and practical basis for wheat breeding by marker-assisted selection (MAS). This paper reports the first application of SLAF-seq technology with a high success rate in developing specific molecular markers for Th. elongatum, providing a strong case for the application of this new technology.
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Affiliation(s)
- Shiqiang Chen
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Zefeng Huang
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Yi Dai
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Shuwen Qin
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Yingying Gao
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Lulu Zhang
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Yong Gao
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Jianmin Chen
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
- * E-mail:
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Fritsche S, Wang X, Li J, Stich B, Kopisch-Obuch FJ, Endrigkeit J, Leckband G, Dreyer F, Friedt W, Meng J, Jung C. A candidate gene-based association study of tocopherol content and composition in rapeseed (Brassica napus). FRONTIERS IN PLANT SCIENCE 2012; 3:129. [PMID: 22740840 PMCID: PMC3382996 DOI: 10.3389/fpls.2012.00129] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 05/30/2012] [Indexed: 05/06/2023]
Abstract
Rapeseed (Brassica napus L.) is the most important oil crop of temperate climates. Rapeseed oil contains tocopherols, also known as vitamin E, which is an indispensable nutrient for humans and animals due to its antioxidant and radical scavenging abilities. Moreover, tocopherols are also important for the oxidative stability of vegetable oils. Therefore, seed oil with increased tocopherol content or altered tocopherol composition is a target for breeding. We investigated the role of nucleotide variations within candidate genes from the tocopherol biosynthesis pathway. Field trials were carried out with 229 accessions from a worldwide B. napus collection which was divided into two panels of 96 and 133 accessions. Seed tocopherol content and composition were measured by HPLC. High heritabilities were found for both traits, ranging from 0.62 to 0.94. We identified polymorphisms by sequencing selected regions of the tocopherol genes from the 96 accession panel. Subsequently, we determined the population structure (Q) and relative kinship (K) as detected by genotyping with genome-wide distributed SSR markers. Association studies were performed using two models, the structure-based GLM + Q and the PK-mixed model. Between 26 and 12 polymorphisms within two genes (BnaX.VTE3.a, BnaA.PDS1.c) were significantly associated with tocopherol traits. The SNPs explained up to 16.93% of the genetic variance for tocopherol composition and up to 10.48% for total tocopherol content. Based on the sequence information we designed CAPS markers for genotyping the 133 accessions from the second panel. Significant associations with various tocopherol traits confirmed the results from the first experiment. We demonstrate that the polymorphisms within the tocopherol genes clearly impact tocopherol content and composition in B. napus seeds. We suggest that these nucleotide variations may be used as selectable markers for breeding rapeseed with enhanced tocopherol quality.
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Affiliation(s)
- Steffi Fritsche
- Faculty of Agricultural and Nutritional Sciences, Plant Breeding Institute, Christian-Albrechts-UniversityKiel, Germany
| | - Xingxing Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural UniversityWuhan, China
| | - Jinquan Li
- Quantitative Crop Genetics, Max Planck Institute for Plant Breeding ResearchCologne, Germany
| | - Benjamin Stich
- Quantitative Crop Genetics, Max Planck Institute for Plant Breeding ResearchCologne, Germany
| | - Friedrich J. Kopisch-Obuch
- Faculty of Agricultural and Nutritional Sciences, Plant Breeding Institute, Christian-Albrechts-UniversityKiel, Germany
| | - Jessica Endrigkeit
- Faculty of Agricultural and Nutritional Sciences, Plant Breeding Institute, Christian-Albrechts-UniversityKiel, Germany
| | - Gunhild Leckband
- Norddeutsche Pflanzenzucht Hans-Georg Lembke KGHohenlieth, Germany
| | - Felix Dreyer
- Norddeutsche Pflanzenzucht Hans-Georg Lembke KGHohenlieth, Germany
| | - Wolfgang Friedt
- Faculty of Agricultural Sciences, Nutritional Sciences and Environmental Management, Institute of Agronomy and Plant Breeding I, Justus-Liebig-UniversityGiessen, Germany
| | - Jinling Meng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural UniversityWuhan, China
| | - Christian Jung
- Faculty of Agricultural and Nutritional Sciences, Plant Breeding Institute, Christian-Albrechts-UniversityKiel, Germany
- *Correspondence: Christian Jung, Plant Breeding Institute, Christian-Albrechts-University, Olshausenstrasse 40, 24118 Kiel, Germany. e-mail:
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Fu S, Lv Z, Qi B, Guo X, Li J, Liu B, Han F. Molecular cytogenetic characterization of wheat--Thinopyrum elongatum addition, substitution and translocation lines with a novel source of resistance to wheat Fusarium Head Blight. J Genet Genomics 2011; 39:103-10. [PMID: 22361509 DOI: 10.1016/j.jgg.2011.11.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 11/17/2011] [Accepted: 11/21/2011] [Indexed: 10/14/2022]
Abstract
Thinopyrum elongatum (2n=2x=14, EE), a wild relative of wheat, has been suggested as a potentially novel source of resistance to several major wheat diseases including Fusarium Head Blight (FHB). In this study, a series of wheat (cv. Chinese Spring, CS) substitution and ditelosomic lines, including Th. elongatum additions, were assessed for Type II resistance to FHB. Results indicated that the lines containing chromosome 7E of Th. elongatum gave a high level of resistance to FHB, wherein the infection did not spread beyond the inoculated floret. Furthermore, it was determined that the novel resistance gene(s) of 7E was located on the short-arm (7ES) based on sharp difference in FHB resistance between the two 7E ditelosomic lines for each arm. On the other hand, Th. elongatum chromosomes 5E and 6E likely contain gene(s) for susceptibility to FHB because the disease spreads rapidly within the inoculated spikes of these lines. Genomic in situ hybridization (GISH) analysis revealed that the alien chromosomes in the addition and substitution lines were intact, and the lines did not contain discernible genomic aberrations. GISH and multicolor-GISH analyses were further performed on three translocation lines that also showed high levels of resistance to FHB. Lines TA3499 and TA3695 were shown to contain one pair of wheat-Th. elongatum translocated chromosomes involving fragments of 7D plus a segment of the 7E, while line TA3493 was found to contain one pair of wheat-Th. elongatum translocated chromosomes involving the D- and A-genome chromosomes of wheat. Thus, this study has established that the short-arm of chromosome 7E of Th. elongatum harbors gene(s) highly resistant to the spreading of FHB, and chromatin of 7E introgressed into wheat chromosomes largely retained the resistance, implicating the feasibility of using these lines as novel material for breeding FHB-resistant wheat cultivars.
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Affiliation(s)
- Shulan Fu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
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CAI JINJIN, ZHANG XIULI, WANG BIANYIN, YAN MEI, QI YANHONG, KONG LINGRANG. A genetic analysis of segregation distortion revealed by molecular markers in Lophopyrum ponticum chromosome 7E. J Genet 2011; 90:373-6. [DOI: 10.1007/s12041-011-0084-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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