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Qi Z, Meng X, Xu M, Du Y, Yu J, Song T, Pan X, Zhang R, Cao H, Yu M, Telebanco-Yanoria MJ, Lu G, Zhou B, Liu Y. A novel Pik allele confers extended resistance to rice blast. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39087779 DOI: 10.1111/pce.15072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 07/18/2024] [Accepted: 07/22/2024] [Indexed: 08/02/2024]
Abstract
In the ongoing arms race between rice and Magnaporthe oryzae, the pathogen employs effectors to evade the immune response, while the host develops resistance genes to recognise these effectors and confer resistance. In this study, we identified a novel Pik allele, Pik-W25, from wild rice WR25 through bulked-segregant analysis, creating the Pik-W25 NIL (Near-isogenic Lines) named G9. Pik-W25 conferred resistance to isolates expressing AvrPik-C/D/E alleles. CRISPR-Cas9 editing was used to generate transgenic lines with a loss of function in Pik-W25-1 and Pik-W25-2, resulting in loss of resistance in G9 to isolates expressing the three alleles, confirming that Pik-W25-induced immunity required both Pik-W25-1 and Pik-W25-2. Yeast two-hybrid (Y2H) and split luciferase complementation assays showed interactions between Pik-W25-1 and the three alleles, while Pik-W25-2 could not interact with AvrPik-C, -D, and -E alleles with Y2H assay, indicating Pik-W25-1 acts as an adaptor and Pik-W25-2 transduces the signal to trigger resistance. The Pik-W25 NIL exhibited enhanced field resistance to leaf and panicle blast without significant changes in morphology or development compared to the parent variety CO39, suggesting its potential for resistance breeding. These findings advance our knowledge of rice blast resistance mechanisms and offer valuable resources for effective and sustainable control strategies.
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Affiliation(s)
- Zhongqiang Qi
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
- IRRI-JAAS Joint Laboratory, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Xiuli Meng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
- Genetics and Biotechnology Division, International Rice Research Institute, College, Los Banos, Laguna, Philippines
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, China
| | - Ming Xu
- High-throughput Genotyping Shared Laboratory, Seed Administration Department of Jiangsu Province, Nanjing, China
| | - Yan Du
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Junjie Yu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Tianqiao Song
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Xiayan Pan
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Rongsheng Zhang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Huijuan Cao
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Mina Yu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
| | | | - Guodong Lu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Bo Zhou
- IRRI-JAAS Joint Laboratory, Jiangsu Academy of Agricultural Science, Nanjing, China
- Genetics and Biotechnology Division, International Rice Research Institute, College, Los Banos, Laguna, Philippines
| | - Yongfeng Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Science, Nanjing, China
- IRRI-JAAS Joint Laboratory, Jiangsu Academy of Agricultural Science, Nanjing, China
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Devanna BN, Sucharita S, Sunitha NC, Anilkumar C, Singh PK, Pramesh D, Samantaray S, Behera L, Katara JL, Parameswaran C, Rout P, Sabarinathan S, Rajashekara H, Sharma TR. Refinement of rice blast disease resistance QTLs and gene networks through meta-QTL analysis. Sci Rep 2024; 14:16458. [PMID: 39013915 PMCID: PMC11252161 DOI: 10.1038/s41598-024-64142-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 06/05/2024] [Indexed: 07/18/2024] Open
Abstract
Rice blast disease is the most devastating disease constraining crop productivity. Vertical resistance to blast disease is widely studied despite its instability. Clusters of genes or QTLs conferring blast resistance that offer durable horizontal resistance are important in resistance breeding. In this study, we aimed to refine the reported QTLs and identify stable meta-QTLs (MQTLs) associated with rice blast resistance. A total of 435 QTLs were used to project 71 MQTLs across all the rice chromosomes. As many as 199 putative rice blast resistance genes were identified within 53 MQTL regions. The genes included 48 characterized resistance gene analogs and related proteins, such as NBS-LRR type, LRR receptor-like kinase, NB-ARC domain, pathogenesis-related TF/ERF domain, elicitor-induced defense and proteins involved in defense signaling. MQTL regions with clusters of RGA were also identified. Fifteen highly significant MQTLs included 29 candidate genes and genes characterized for blast resistance, such as Piz, Nbs-Pi9, pi55-1, pi55-2, Pi3/Pi5-1, Pi3/Pi5-2, Pikh, Pi54, Pik/Pikm/Pikp, Pb1 and Pb2. Furthermore, the candidate genes (42) were associated with differential expression (in silico) in compatible and incompatible reactions upon disease infection. Moreover, nearly half of the genes within the MQTL regions were orthologous to those in O. sativa indica, Z. mays and A. thaliana, which confirmed their significance. The peak markers within three significant MQTLs differentiated blast-resistant and susceptible lines and serve as potential surrogates for the selection of blast-resistant lines. These MQTLs are potential candidates for durable and broad-spectrum rice blast resistance and could be utilized in blast resistance breeding.
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Affiliation(s)
| | - Sumali Sucharita
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - N C Sunitha
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - C Anilkumar
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - Pankaj K Singh
- Department of Biotechnology, University Centre for Research and Development, Chandigarh University, Mohali, Punjab, 140413, India
| | - D Pramesh
- University of Agricultural Sciences, Raichur, Karnataka, India
| | | | - Lambodar Behera
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | | | - C Parameswaran
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - Prachitara Rout
- ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India
| | | | | | - Tilak Raj Sharma
- Division of Crop Science, Indian Council of Agricultural Research, Krishi Bhavan, New Delhi, 110001, India.
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Shen E, Wang X, Lu Z, Zhou F, Ma W, Cui Z, Li Z, Li C, Lin Y. Overexpression of a beta-1,6-glucanase gene GluM in transgenic rice confers high resistance to rice blast, sheath blight and false smut. PEST MANAGEMENT SCIENCE 2023; 79:2152-2162. [PMID: 36729081 DOI: 10.1002/ps.7394] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/20/2023] [Accepted: 02/02/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Frequent fungal diseases tend to lead to severe losses in rice production. As a main component of the fungal cell wall, glucan plays an important role in the growth and development of fungi. Glucanase can inhibit the growth of fungi by breaking glycosidic bonds, and may be a promising target for developing rice varieties with broad-spectrum disease resistance. RESULTS We transferred a codon-optimized β-1,6-glucanase gene (GluM) from myxobacteria into the japonica rice variety Zhonghua11 (ZH11), and obtained a large number of individual transgenic plants with GluM overexpression. Based on molecular analysis, three single-copy homozygous lines with GluM overexpression were selected for assessment of fungal disease resistance at the T3 generation. Compared with that of the recipient cultivar ZH11, the area of rice blast lesion in transgenic rice was reduced by 82.71%; that of sheath blight lesion was decreased by 35.76%-43.67%; the sheath blight resistance in the field was enhanced by an average of 0.75 grade over 3 years; and the incidence of diseased panicles due to rice false smut was decreased by 65.79%. More importantly, there was no obvious loss of yield (without a significant effect on agronomic traits). Furthermore, plants overexpressing a β-1,6-glucanase gene showed higher disease resistance than rice plants overexpressing a β-1,3-glucanase gene derived from tobacco. CONCLUSION The β-1,6-glucanase gene GluM can confer broad-spectrum disease resistance to rice, providing an environmentally friendly alternative way to effectively manage fungal pathogens in rice production. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Enlong Shen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xingchao Wang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhaoxi Lu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Fei Zhou
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Weihua Ma
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhongli Cui
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Biological Interaction and Crop Health, Nanjing Agricultural University, Nanjing, China
| | - Zhoukun Li
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Changyan Li
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yongjun Lin
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
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Xi Y, Cesari S, Kroj T. Insight into the structure and molecular mode of action of plant paired NLR immune receptors. Essays Biochem 2022; 66:513-526. [PMID: 35735291 PMCID: PMC9528088 DOI: 10.1042/ebc20210079] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/16/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022]
Abstract
The specific recognition of pathogen effectors by intracellular nucleotide-binding domain and leucine-rich repeat receptors (NLRs) is an important component of plant immunity. NLRs have a conserved modular architecture and can be subdivided according to their signaling domain that is mostly a coiled-coil (CC) or a Toll/Interleukin1 receptor (TIR) domain into CNLs and TNLs. Single NLR proteins are often sufficient for both effector recognition and immune activation. However, sometimes, they act in pairs, where two different NLRs are required for disease resistance. Functional studies have revealed that in these cases one NLR of the pair acts as a sensor (sNLR) and one as a helper (hNLR). The genes corresponding to such resistance protein pairs with one-to-one functional co-dependence are clustered, generally with a head-to-head orientation and shared promoter sequences. sNLRs in such functional NLR pairs have additional, non-canonical and highly diverse domains integrated in their conserved modular architecture, which are thought to act as decoys to trap effectors. Recent structure-function studies on the Arabidopsis thaliana TNL pair RRS1/RPS4 and on the rice CNL pairs RGA4/RGA5 and Pik-1/Pik-2 are unraveling how such protein pairs function together. Focusing on these model NLR pairs and other recent examples, this review highlights the distinctive features of NLR pairs and their various fascinating mode of action in pathogen effector perception. We also discuss how these findings on NLR pairs pave the way toward improved plant disease resistance.
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Affiliation(s)
- Yuxuan Xi
- PHIM Plant Health Institute, Univ Montpellier, INRAE, CIRAD, Institut Agro, IRD, Montpellier, France
| | - Stella Cesari
- PHIM Plant Health Institute, Univ Montpellier, INRAE, CIRAD, Institut Agro, IRD, Montpellier, France
| | - Thomas Kroj
- PHIM Plant Health Institute, Univ Montpellier, INRAE, CIRAD, Institut Agro, IRD, Montpellier, France
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Marchal C, Michalopoulou VA, Zou Z, Cevik V, Sarris PF. Show me your ID: NLR immune receptors with integrated domains in plants. Essays Biochem 2022; 66:527-539. [PMID: 35635051 PMCID: PMC9528084 DOI: 10.1042/ebc20210084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/27/2022] [Accepted: 05/03/2022] [Indexed: 02/07/2023]
Abstract
Nucleotide-binding and leucine-rich repeat receptors (NLRs) are intracellular plant immune receptors that recognize pathogen effectors secreted into the plant cell. Canonical NLRs typically contain three conserved domains including a central nucleotide binding (NB-ARC) domain, C-terminal leucine-rich repeats (LRRs) and an N-terminal domain. A subfamily of plant NLRs contain additional noncanonical domain(s) that have potentially evolved from the integration of the effector targets in the canonical NLR structure. These NLRs with extra domains are thus referred to as NLRs with integrated domains (NLR-IDs). Here, we first summarize our current understanding of NLR-ID activation upon effector binding, focusing on the NLR pairs Pik-1/Pik-2, RGA4/RGA5, and RRS1/RPS4. We speculate on their potential oligomerization into resistosomes as it was recently shown for certain canonical plant NLRs. Furthermore, we discuss how our growing understanding of the mode of action of NLR-ID continuously informs engineering approaches to design new resistance specificities in the context of rapidly evolving pathogens.
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Affiliation(s)
- Clemence Marchal
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, NR4 7UH, Norwich, United Kingdom
| | - Vassiliki A Michalopoulou
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion 70013, Crete, Greece
| | - Zhou Zou
- Department of Biology and Biochemistry, The Milner Centre for Evolution, University of Bath, Bath BA2 7AY, United Kingdom
| | - Volkan Cevik
- Department of Biology and Biochemistry, The Milner Centre for Evolution, University of Bath, Bath BA2 7AY, United Kingdom
| | - Panagiotis F Sarris
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion 70013, Crete, Greece
- Department of Biology, University of Crete, 714 09 Heraklion, Crete, Greece
- Department of Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom
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6
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Understanding the Dynamics of Blast Resistance in Rice-Magnaporthe oryzae Interactions. J Fungi (Basel) 2022; 8:jof8060584. [PMID: 35736067 PMCID: PMC9224618 DOI: 10.3390/jof8060584] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/03/2022] [Accepted: 05/10/2022] [Indexed: 01/09/2023] Open
Abstract
Rice is a global food grain crop for more than one-third of the human population and a source for food and nutritional security. Rice production is subjected to various stresses; blast disease caused by Magnaporthe oryzae is one of the major biotic stresses that has the potential to destroy total crop under severe conditions. In the present review, we discuss the importance of rice and blast disease in the present and future global context, genomics and molecular biology of blast pathogen and rice, and the molecular interplay between rice–M. oryzae interaction governed by different gene interaction models. We also elaborated in detail on M. oryzae effector and Avr genes, and the role of noncoding RNAs in disease development. Further, rice blast resistance QTLs; resistance (R) genes; and alleles identified, cloned, and characterized are discussed. We also discuss the utilization of QTLs and R genes for blast resistance through conventional breeding and transgenic approaches. Finally, we review the demonstrated examples and potential applications of the latest genome-editing tools in understanding and managing blast disease in rice.
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7
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Identification of Pathogenicity Loci in Magnaporthe oryzae Using GWAS with Neck Blast Phenotypic Data. Genes (Basel) 2022; 13:genes13050916. [PMID: 35627301 PMCID: PMC9141631 DOI: 10.3390/genes13050916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/10/2022] Open
Abstract
Magnaporthae oryzae (M. oryzae) is the most destructive disease of rice worldwide. In this study, one hundred and two isolates of M. oryzae were collected from rice (Oryzae sativa L.) from 2001 to 2017, and six rice varieties with resistance genes Pizt, Pish, Pik, Pib, and Pi2 were used in a genome-wide association study to identify pathogenicity loci in M. oryzae. Genome-wide association analysis was performed using 5338 single nucleotide polymorphism (SNPs) and phenotypic data of neck blast screening by TASSEL software together with haplotype block and SNP effect analysis. Twenty-seven significant SNPs were identified on chromosomes 1, 2, 3, 4, 5, 6, and 7. Many predicted genes (820 genes) were found in the target regions of six rice varieties. Most of these genes are described as putative uncharacterized proteins, however, some genes were reported related to virulence in M. oryzae. Moreover, this study revealed that R genes, Pik, Pish, and Pi2, were broad-spectrum resistant against neck blast disease caused by Thai blast isolate. Haplotype analysis revealed that the combination of the favorable alleles causing reduced virulence of isolates against IRBLz5-CA carrying Pi2 gene contributes 69% of the phenotypic variation in pathogenicity. The target regions and information are useful to develop marker-specific genes to classify blast fungal isolates and select appropriate resistance genes for rice cultivation and improvement.
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8
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Identification of broad-spectrum resistance QTLs against rice blast fungus and their application in different rice genetic backgrounds. J Genet 2022. [DOI: 10.1007/s12041-021-01357-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Lo KL, Chen YN, Chiang MY, Chen MC, Panibe JP, Chiu CC, Liu LW, Chen LJ, Chen CW, Li WH, Wang CS. Two genomic regions of a sodium azide induced rice mutant confer broad-spectrum and durable resistance to blast disease. RICE (NEW YORK, N.Y.) 2022; 15:2. [PMID: 35006368 PMCID: PMC8748607 DOI: 10.1186/s12284-021-00547-z] [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: 07/01/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Rice blast, one of the most destructive epidemic diseases, annually causes severe losses in grain yield worldwide. To manage blast disease, breeding resistant varieties is considered a more economic and environment-friendly strategy than chemical control. For breeding new resistant varieties, natural germplasms with broad-spectrum resistance are valuable resistant donors, but the number is limited. Therefore, artificially induced mutants are an important resource for identifying new broad-spectrum resistant (R) genes/loci. To pursue this approach, we focused on a broad-spectrum blast resistant rice mutant line SA0169, which was previously selected from a sodium azide induced mutation pool of TNG67, an elite japonica variety. We found that SA0169 was completely resistant against the 187 recently collected blast isolates and displayed durable resistance for almost 20 years. Linkage mapping and QTL-seq analysis indicated that a 1.16-Mb region on chromosome 6 (Pi169-6(t)) and a 2.37-Mb region on chromosome 11 (Pi169-11(t)) conferred the blast resistance in SA0169. Sequence analysis and genomic editing study revealed 2 and 7 candidate R genes in Pi169-6(t) and Pi169-11(t), respectively. With the assistance of mapping results, six blast and bacterial blight double resistant lines, which carried Pi169-6(t) and/or Pi169-11(t), were established. The complementation of Pi169-6(t) and Pi169-11(t), like SA0169, showed complete resistance to all tested isolates, suggesting that the combined effects of these two genomic regions largely confer the broad-spectrum resistance of SA0169. The sodium azide induced mutant SA0169 showed broad-spectrum and durable blast resistance. The broad resistance spectrum of SA0169 is contributed by the combined effects of two R regions, Pi169-6(t) and Pi169-11(t). Our study increases the understanding of the genetic basis of the broad-spectrum blast resistance induced by sodium azide mutagenesis, and lays a foundation for breeding new rice varieties with durable resistance against the blast pathogen.
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Affiliation(s)
- Kuan-Lin Lo
- Department of Agronomy, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Nian Chen
- Division of Plant Pathology, Taiwan Agriculture Research Institute, Taichung, Taiwan
| | - Min-Yu Chiang
- Department of Agronomy, National Chung Hsing University, Taichung, Taiwan
| | - Mei-Chun Chen
- Division of Plant Pathology, Taiwan Agriculture Research Institute, Taichung, Taiwan
| | - Jerome P Panibe
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
- Bioinformatics Program, Taiwan International Graduate Program, Institute of Information Science, Academia Sinica, Taipei, Taiwan
- Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Chung-Chun Chiu
- Department of Agronomy, National Chung Hsing University, Taichung, Taiwan
| | - Lu-Wei Liu
- Department of Agronomy, National Chung Hsing University, Taichung, Taiwan
| | - Liang-Jwu Chen
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Chun-Wei Chen
- Division of Plant Pathology, Taiwan Agriculture Research Institute, Taichung, Taiwan
| | - Wen-Hsiung Li
- Biodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan
- Department of Ecology and Evolution, University of Chicago, Chicago, IL, 60637, USA
| | - Chang-Sheng Wang
- Department of Agronomy, National Chung Hsing University, Taichung, Taiwan.
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.
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De la Concepcion JC, Vega Benjumea J, Bialas A, Terauchi R, Kamoun S, Banfield MJ. Functional diversification gave rise to allelic specialization in a rice NLR immune receptor pair. eLife 2021; 10:e71662. [PMID: 34783652 PMCID: PMC8631799 DOI: 10.7554/elife.71662] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/15/2021] [Indexed: 12/29/2022] Open
Abstract
Cooperation between receptors from the nucleotide-binding, leucine-rich repeats (NLR) superfamily is important for intracellular activation of immune responses. NLRs can function in pairs that, upon pathogen recognition, trigger hypersensitive cell death and stop pathogen invasion. Natural selection drives specialization of host immune receptors towards an optimal response, whilst keeping a tight regulation of immunity in the absence of pathogens. However, the molecular basis of co-adaptation and specialization between paired NLRs remains largely unknown. Here, we describe functional specialization in alleles of the rice NLR pair Pik that confers resistance to strains of the blast fungus Magnaporthe oryzae harbouring AVR-Pik effectors. We revealed that matching pairs of allelic Pik NLRs mount effective immune responses, whereas mismatched pairs lead to autoimmune phenotypes, a hallmark of hybrid necrosis in both natural and domesticated plant populations. We further showed that allelic specialization is largely underpinned by a single amino acid polymorphism that determines preferential association between matching pairs of Pik NLRs. These results provide a framework for how functionally linked immune receptors undergo co-adaptation to provide an effective and regulated immune response against pathogens. Understanding the molecular constraints that shape paired NLR evolution has implications beyond plant immunity given that hybrid necrosis can drive reproductive isolation.
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Affiliation(s)
- Juan Carlos De la Concepcion
- Gregor Mendel Institute of Molecular Plant Biology, Austrian Academy of SciencesViennaAustria
- Department of Biological Chemistry and Metabolism, John Innes CentreNorwichUnited Kingdom
| | - Javier Vega Benjumea
- Department of Biological Chemistry and Metabolism, John Innes CentreNorwichUnited Kingdom
- Servicio de Bioquímica-Análisis clínicos, Hospital Universitario Puerta de HierroMadridSpain
| | - Aleksandra Bialas
- The Sainsbury Laboratory, University of East AngliaNorwichUnited Kingdom
| | - Ryohei Terauchi
- Division of Genomics and Breeding, Iwate Biotechnology Research CenterIwateJapan
- Laboratory of Crop Evolution, Graduate School of AgricultureKyotoJapan
| | - Sophien Kamoun
- The Sainsbury Laboratory, University of East AngliaNorwichUnited Kingdom
| | - Mark J Banfield
- Department of Biological Chemistry and Metabolism, John Innes CentreNorwichUnited Kingdom
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11
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Quillévéré-Hamard A, Le Roy G, Lesné A, Le May C, Pilet-Nayel ML. Aggressiveness of Diverse French Aphanomyces euteiches Isolates on Pea Near Isogenic Lines Differing in Resistance Quantitative Trait Loci. PHYTOPATHOLOGY 2021; 111:695-702. [PMID: 32781903 DOI: 10.1094/phyto-04-20-0147-r] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Aphanomyces root rot is a major disease in many pea growing regions worldwide. Development of resistant varieties is necessary to manage the disease. Near isogenic lines (NILs) carrying resistance alleles at main quantitative trait loci (QTLs) were developed by marker-assisted backcrossing. This study aimed to evaluate the aggressiveness of diverse French isolates of Aphanomyces euteiches on NILs carrying different resistance QTLs. Forty-three A. euteiches isolates from different French pea growing regions were tested for aggressiveness on eight NILs carrying single or combinations of resistance QTLs and two susceptible or resistant control lines, in controlled conditions. Three clusters of isolates, unrelated to geographical origin, were identified, including 37, 56, and 7% of isolates with high, moderate, and low average levels of aggressiveness, respectively. Three groups of pea lines were also identified. The first group consisted of a pea resistant control line, moderately to highly resistant to all of the isolates. The second group included five NILs carrying a major-effect resistance allele at QTL Ae-Ps7.6, with a medium to broad range of effects on the isolates. The third group consisted of three NILs carrying minor-effect resistance alleles, with a narrow range of effects on the isolates. The results suggest that highly aggressive isolates occur naturally, which may be selected by future partially resistant pea varieties carrying QTLs and increase the risk of erosion of QTL effect. QTL pyramiding strategies for a higher level and a broader range of effect of quantitative resistance on A. euteiches populations will be required for breeding for durable pea resistant varieties.
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Affiliation(s)
| | - Gwenola Le Roy
- IGEPP, INRAE, Institut Agro, Univ Rennes, 35653, Le Rheu, France
| | - Angélique Lesné
- IGEPP, INRAE, Institut Agro, Univ Rennes, 35653, Le Rheu, France
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Maidment JHR, Franceschetti M, Maqbool A, Saitoh H, Jantasuriyarat C, Kamoun S, Terauchi R, Banfield MJ. Multiple variants of the fungal effector AVR-Pik bind the HMA domain of the rice protein OsHIPP19, providing a foundation to engineer plant defense. J Biol Chem 2021; 296:100371. [PMID: 33548226 PMCID: PMC7961100 DOI: 10.1016/j.jbc.2021.100371] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/24/2021] [Accepted: 02/01/2021] [Indexed: 01/24/2023] Open
Abstract
Microbial plant pathogens secrete effector proteins, which manipulate the host to promote infection. Effectors can be recognized by plant intracellular nucleotide-binding leucine-rich repeat (NLR) receptors, initiating an immune response. The AVR-Pik effector from the rice blast fungus Magnaporthe oryzae is recognized by a pair of rice NLR receptors, Pik-1 and Pik-2. Pik-1 contains a noncanonical integrated heavy-metal-associated (HMA) domain, which directly binds AVR-Pik to activate plant defenses. The host targets of AVR-Pik are also HMA-domain-containing proteins, namely heavy-metal-associated isoprenylated plant proteins (HIPPs) and heavy-metal-associated plant proteins (HPPs). Here, we demonstrate that one of these targets interacts with a wider set of AVR-Pik variants compared with the Pik-1 HMA domains. We define the biochemical and structural basis of the interaction between AVR-Pik and OsHIPP19 and compare the interaction to that formed with the HMA domain of Pik-1. Using analytical gel filtration and surface plasmon resonance, we show that multiple AVR-Pik variants, including the stealthy variants AVR-PikC and AVR-PikF, which do not interact with any characterized Pik-1 alleles, bind to OsHIPP19 with nanomolar affinity. The crystal structure of OsHIPP19 in complex with AVR-PikF reveals differences at the interface that underpin high-affinity binding of OsHIPP19-HMA to a wider set of AVR-Pik variants than achieved by the integrated HMA domain of Pik-1. Our results provide a foundation for engineering the HMA domain of Pik-1 to extend binding to currently unrecognized AVR-Pik variants and expand disease resistance in rice to divergent pathogen strains.
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Affiliation(s)
- Josephine H R Maidment
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Marina Franceschetti
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Abbas Maqbool
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Hiromasa Saitoh
- Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Chatchawan Jantasuriyarat
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, UK; Department of Genetics, Faculty of Science, Kasetsart University, Bangkok, Thailand; Center for Advanced Studies in Tropical Natural Resources, National Research University-Kasetsart University (CASTNAR, NRU-KU), Kasetsart University, Bangkok, Thailand
| | - Sophien Kamoun
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, UK
| | - Ryohei Terauchi
- Division of Genomics and Breeding, Iwate Biotechnology Research Centre, Iwate, Japan; Laboratory of Crop Evolution, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Mark J Banfield
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, UK.
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Ngernmuen A, Suktrakul W, Kate-Ngam S, Jantasuriyarat C. Transcriptome Comparison of Defense Responses in the Rice Variety 'Jao Hom Nin' Regarding Two Blast Resistant Genes, Pish and Pik. PLANTS 2020; 9:plants9060694. [PMID: 32485961 PMCID: PMC7356797 DOI: 10.3390/plants9060694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 11/24/2022]
Abstract
Jao Hom Nin (JHN) is a Thai rice variety with broad-spectrum resistant against rice blast fungus. JHN contains two rice blast resistant genes, Pish and Pik, located on chromosome 1 and on chromosome 11, respectively. To understand the blast resistance in JHN, the study of the defense mechanism related to the Pish and Pik genes is crucial. This study aimed to dissect defense response genes between the Pish and Pik genes using the RNA-seq technique. Differentially expressed genes (DEGs) of Pish and Pik backcross inbred lines were identified between 0 and 24 h after inoculation with rice blast spore suspension. The results showed that 1248 and 858 DEGs were unique to the Pish and Pik lines, respectively. The wall-associated kinase gene was unique to the Pish line and the zinc-finger-containing protein gene was unique to the Pik line. Pathogenicity-related proteins PR-4 and PR-10 were commonly found in both Pish and Pik lines. Moreover, DEGs functionally categorized in brassinosteriod, jasmonic acid, and salicylic acid pathways were detected in both Pish and Pik lines. These unique and shared genes in the Pish and Pik rice blast defense responses will help to dissect the mechanisms of plant defense and facilitate rice blast breeding programs.
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Affiliation(s)
- Athipat Ngernmuen
- Department of Genetics, Faculty of Science, Kasetsart University, Bangkhen Campus, Ladyao, Chatuchak, Bangkok 10900, Thailand; (A.N.); (W.S.)
| | - Worrawit Suktrakul
- Department of Genetics, Faculty of Science, Kasetsart University, Bangkhen Campus, Ladyao, Chatuchak, Bangkok 10900, Thailand; (A.N.); (W.S.)
| | - Sureeporn Kate-Ngam
- Department of Agronomy, Faculty of Agriculture, Ubon Ratchathani University, Warinchamrap, Ubon Ratchathani 34190, Thailand;
| | - Chatchawan Jantasuriyarat
- Department of Genetics, Faculty of Science, Kasetsart University, Bangkhen Campus, Ladyao, Chatuchak, Bangkok 10900, Thailand; (A.N.); (W.S.)
- Center for Advanced Studies in Tropical Natural Resources, National Research University-Kasetsart University (CASTNAR, NRU-KU), Kasetsart University, Bangkok 10900, Thailand
- Omics Center for Agriculture, Bioresources, Food and Health, Kasetsart University (OmiKU), Kasetsart University, Bangkok 10900, Thailand
- Correspondence: ; Tel.: +662-562-5444
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Meng X, Xiao G, Telebanco-Yanoria MJ, Siazon PM, Padilla J, Opulencia R, Bigirimana J, Habarugira G, Wu J, Li M, Wang B, Lu GD, Zhou B. The broad-spectrum rice blast resistance (R) gene Pita2 encodes a novel R protein unique from Pita. RICE (NEW YORK, N.Y.) 2020; 13:19. [PMID: 32170462 PMCID: PMC7070119 DOI: 10.1186/s12284-020-00377-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Rice blast is generally considered the most devastating rice disease worldwide. The development of resistant varieties has been proven to be the most economical strategy to control the disease. A cluster of resistant (R) genes on rice chromosome 12 including Pita, Pita2 and Ptr has been studies for decades. However, the relationship between these R genes has not been well established. RESULTS In this study, we compared the resistance spectra controlled by Pita2 and Pita by testing their monogenic lines (MLs) in four hotspots found in the Philippines and Burundi from 2014 to 2018. The reaction patterns were distinct in two countries and that Pita2-mediated field resistance was relatively prevalent. Pathogenicity tests using 328 single-spore isolates in greenhouse further verified that IRBLta2-Re for Pita2 conferred a relatively broader spectrum resistance than those of Pita. Rough and fine mapping of Pita2 were conducted using F2 and F3 populations derived from IRBLta2-Re [CO] and CO 39 consisting of 4344 progeny to delimit Pita2 in a genomic interval flanked by two markers 12 g18530 and 12 g18920 proximal to the centromere of chromosome 12. Alignment of the markers to the genomic sequence of IR64, which harbors Pita2 verified by genetic analysis, approximately delimited the candidate gene(s) within 313-kb genomic fragment. The two Pita2 suppressive mutants that contain mutations within Pita2 were verified and identified. Comparative sequence analysis in these two mutants further identified that each individual allele contains a single nucleotide substitution at a different position resulting in nonsense and missense mutations in the protein product of LOC_Os12g18729. On the contrary, no sequence mutation was detected in other candidate genes, indicating that mutations in LOC_Os12g18729 were responsible for the loss of function of Pita2. Pita2 encodes a novel R protein unique from Pita, which is exactly identical to the previously cloned Ptr. Moreover, based on the resistance gene analysis of rice varieties and mutants containing Pita, it was found that Pita2 rather than Pita was responsible for the specificity to some differential isolates with AvrPita. The diagnosis and survey of Pita2 in IRRI released varieties showed relatively low frequency, implying a high value of its application for breeding resistant varieties against rice blast via marker assisted selection. CONCLUSION Our study clarified the relationship between Pita, Pita2 and Ptr. Pita2 is identical to Ptr and distinct from Pita in both sequence and chromosomal location although Pita2 and Pita are genetically linked to each other. The loss of function of Pita2 but not Pita eliminate the specificity to some AvrPita containing isolates, however, the mechanism underlying the recognition between Pita2/Pita and AvrPita remains elusive.
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Affiliation(s)
- Xiuli Meng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China
- International Rice Research Institute (IRRI), DAPO Box 7777, 1301, Metro Manila, Philippines
| | - Gui Xiao
- China National Hybrid Rice R&D Center/ Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | | | - Paolo Miguel Siazon
- International Rice Research Institute (IRRI), DAPO Box 7777, 1301, Metro Manila, Philippines
- Institute of Biological Sciences, University of the Philippines Los Baños, College, Laguna, Philippines
| | - Jonas Padilla
- International Rice Research Institute (IRRI), DAPO Box 7777, 1301, Metro Manila, Philippines
| | - Rina Opulencia
- Institute of Biological Sciences, University of the Philippines Los Baños, College, Laguna, Philippines
| | - Joseph Bigirimana
- International Rice Research Institute (IRRI), DAPO Box 7777, 1301, Metro Manila, Philippines
| | - Georges Habarugira
- International Rice Research Institute (IRRI), DAPO Box 7777, 1301, Metro Manila, Philippines
| | - Jun Wu
- China National Hybrid Rice R&D Center/ Hunan Hybrid Rice Research Center, Changsha, 410125, China
| | - Mingyang Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China
| | - Baohua Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China
| | - Guo-Dong Lu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 350002, China.
| | - Bo Zhou
- International Rice Research Institute (IRRI), DAPO Box 7777, 1301, Metro Manila, Philippines.
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Xiao G, Yang J, Zhu X, Wu J, Zhou B. Prevalence of Ineffective Haplotypes at the Rice Blast Resistance (R) Gene Loci in Chinese Elite Hybrid Rice Varieties Revealed by Sequence-Based Molecular Diagnosis. RICE (NEW YORK, N.Y.) 2020; 13:6. [PMID: 32002696 PMCID: PMC6990218 DOI: 10.1186/s12284-020-0367-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/19/2020] [Indexed: 06/10/2023]
Abstract
Multiple haplotypes at the same rice blast R-gene locus share extremely high sequence similarity, which makes the gene diagnostic method using molecular markers less effective in differentiation from one another. The composition and distribution pattern of deployed R genes/haplotypes in elite rice varieties has not been extensively analyzed. In this study, we employed PCR amplification and sequencing approach for the diagnosis of R-gene haplotypes in 54 Chinese elite rice varieties. A varied number of functional and nonfunctional haplotypes of 4 target major R-gene loci, i.e., Pi2/9, Pi5, Pik, and Pib, were deduced by referring to the reference sequences of known R genes. Functional haplotypes accounted for relatively low frequencies for the Pi2/9 (15%) and Pik (9%) loci but for relatively high frequencies for the Pi5 (50%) and Pib (54%) loci. Intriguingly, significant frequencies of 33%, 39%, 46% of non-functional haplotypes at the Pi2/9, Pik, and Pib loci, respectively, with traceable original donors were identified, suggesting that they were most likely unintentionally spread by using undesirable donors in various breeding programs. In the case of Pi5 locus, only a single haplotype, i.e., Pi5 was identified. The reactions of 54 rice varieties to the differential isolates were evaluated, which showed a good correlation to the frequency of cognate avirulence (Avr) genes or haplotypes in the differential isolates. Four R genes, i.e., Pi2, Piz-t, Pi50, and Pikm were found to contribute significantly to the resistance of the elite rice varieties. Other two genes, Pi9 and Pikh, which were not utilized in rice varieties, showed promising values in breeding durable resistance due to their high resistance frequencies to the contemporary rice blast population. The sequence-based molecular diagnosis provided a promising approach for the identification and verification of haplotypes in different R-gene loci and effective R genes valuable for breeding durable rice resistance to rice blast.
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Affiliation(s)
- Gui Xiao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, Hunan China
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Jianyuan Yang
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 Guangdong China
| | - Xiaoyuan Zhu
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 Guangdong China
| | - Jun Wu
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, Hunan China
| | - Bo Zhou
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
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16
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Li W, Chern M, Yin J, Wang J, Chen X. Recent advances in broad-spectrum resistance to the rice blast disease. CURRENT OPINION IN PLANT BIOLOGY 2019; 50:114-120. [PMID: 31163394 DOI: 10.1016/j.pbi.2019.03.015] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/04/2019] [Accepted: 03/25/2019] [Indexed: 05/20/2023]
Abstract
Blast is arguably the most devastating fungal disease of rice. Systematic studies of this disease have made significant progress and identified many genes. Broad-spectrum resistance is highly preferred in agricultural practice. Here, we focus our discussion on resistance (R) and defense-regulator (DR) genes that confer broad-spectrum resistance to Magnaporthe oryzae, in particular those potentially causing no significant yield penalties. Recent advances show that broad-spectrum resistance can be achieved without significant yield penalties, or even with yield benefits. Cross talks of defense signaling mediated by these genes are present that may allow the host to integrate different anti-fungal factors against M. oryzae infection. We also summarize possible mechanisms underlying broad-spectrum resistance to rice blast.
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Affiliation(s)
- Weitao Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China (In preparation), State Key Laboratory of Hybrid Rice, Key Laboratory of Major Crop Diseases & Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
| | - Mawsheng Chern
- Department of Plant Pathology, University of California, Davis, CA, USA
| | - Junjie Yin
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China (In preparation), State Key Laboratory of Hybrid Rice, Key Laboratory of Major Crop Diseases & Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
| | - Jing Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China (In preparation), State Key Laboratory of Hybrid Rice, Key Laboratory of Major Crop Diseases & Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China
| | - Xuewei Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China (In preparation), State Key Laboratory of Hybrid Rice, Key Laboratory of Major Crop Diseases & Collaborative Innovation Center for Hybrid Rice in Yangtze River Basin, Rice Research Institute, Sichuan Agricultural University at Wenjiang, Chengdu, Sichuan 611130, China.
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17
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Longya A, Chaipanya C, Franceschetti M, Maidment JHR, Banfield MJ, Jantasuriyarat C. Gene Duplication and Mutation in the Emergence of a Novel Aggressive Allele of the AVR-Pik Effector in the Rice Blast Fungus. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:740-749. [PMID: 30601714 DOI: 10.1094/mpmi-09-18-0245-r] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Higher yield potential and greater yield stability are common targets for crop breeding programs, including those in rice. Despite these efforts, biotic and abiotic stresses continue to impact rice production. Rice blast disease, caused by Magnaporthe oryzae, is the most devastating disease affecting rice worldwide. In the field, resistant varieties are unstable and can become susceptible to disease within a few years of release due to the adaptive potential of the blast fungus, specifically in the effector (avirulence [AVR]) gene pool. Here, we analyzed genetic variation of the effector gene AVR-Pik in 58 rice blast isolates from Thailand and examined the interaction between AVR-Pik and the cognate rice resistance gene Pik. Our results reveal that Thai rice blast isolates are very diverse. We observe four AVR-Pik variants in the population, including three previously identified variants, AVR-PikA, AVR-PikD, and AVR-PikE, and one novel variant, which we named AVR-PikF. Interestingly, 28 of the isolates contained two copies of AVR-Pik, always in the combination of AVR-PikD and AVR-PikF. Blast isolates expressing only AVR-PikF show high virulence to rice cultivars encoding allelic Pik resistance genes, and the AVR-PikF protein does not interact with the integrated heavy metal-associated domain of the Pik resistance protein in vitro, suggesting a mechanism for immune evasion.
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Affiliation(s)
- Apinya Longya
- 1 Department of Genetics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- 2 Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, U.K.; and
| | - Chaivarakun Chaipanya
- 1 Department of Genetics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
| | - Marina Franceschetti
- 2 Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, U.K.; and
| | - Josephine H R Maidment
- 2 Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, U.K.; and
| | - Mark J Banfield
- 2 Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, U.K.; and
| | - Chatchawan Jantasuriyarat
- 1 Department of Genetics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- 3 Center for Advanced Studies in Tropical Natural Resources, National Research University-Kasetsart University (CASTNAR, NRU-KU), Kasetsart University
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18
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Wu Y, Xiao N, Chen Y, Yu L, Pan C, Li Y, Zhang X, Huang N, Ji H, Dai Z, Chen X, Li A. Comprehensive evaluation of resistance effects of pyramiding lines with different broad-spectrum resistance genes against Magnaporthe oryzae in rice (Oryza sativa L.). RICE (NEW YORK, N.Y.) 2019; 12:11. [PMID: 30825053 PMCID: PMC6397272 DOI: 10.1186/s12284-019-0264-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 01/17/2019] [Indexed: 05/13/2023]
Abstract
BACKGROUND Broad-spectrum resistance gene pyramiding helps the development of varieties with broad-spectrum and durable resistance to M. oryzae. However, detailed information about how these different sources of broad-spectrum resistance genes act together or what are the best combinations to achieve broad-spectrum and durable resistance is limited. RESULTS Here a set of fifteen different polygene pyramiding lines (PPLs) were constructed using marker-assisted selection (MAS). Using artificial inoculation assays at seedling and heading stage, combined with natural induction identification under multiple field environments, we evaluated systematically the resistance effects of different alleles of Piz locus (Pigm, Pi40, Pi9, Pi2 and Piz) combined with Pi1, Pi33 and Pi54, respectively, and the interaction effects between different R genes. The results showed that the seedling blast and panicle blast resistance levels of PPLs were significantly higher than that of monogenic lines. The main reason was that most of the gene combinations produced transgressive heterosis, and the transgressive heterosis for panicle blast resistance produced by most of PPLs was higher than that of seedling blast resistance. Different gene pyramiding with broad-spectrum R gene produced different interaction effects, among them, the overlapping effect (OE) between R genes could significantly improve the seedling blast resistance level of PPLs, while the panicle blast resistance of PPLs were remarkably correlated with OE and complementary effect (CE). In addition, we found that gene combinations, Pigm/Pi1, Pigm/Pi54 and Pigm/Pi33 displayed broad-spectrum resistance in artificial inoculation at seedling and heading stage, and displayed stable broad-spectrum resistance under different disease nursery. Besides, agronomic traits evaluation also showed PPLs with these three gene combinations were at par to the recurrent parent. Therefore, it would provide elite gene combination model and germplasms for rice blast resistance breeding program. CONCLUSIONS The development of PPLs and interaction effect analysis in this study provides valuable theoretical foundation and innovative resources for breeding broad-spectrum and durable resistant varieties.
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Affiliation(s)
- Yunyu Wu
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Ning Xiao
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Yu Chen
- Colleges of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Ling Yu
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Cunhong Pan
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, 210095, China
| | - Yuhong Li
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoxiang Zhang
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Niansheng Huang
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Hongjuan Ji
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China
| | - Zhengyuan Dai
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, 210095, China
| | - Xijun Chen
- Colleges of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China.
| | - Aihong Li
- Lixiahe Agricultural Research Institute of Jiangsu Province, Yangzhou, 225009, China.
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing, 210095, China.
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou University, Yangzhou, 225009, China.
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Korinsak S, Tangphatsornruang S, Pootakham W, Wanchana S, Plabpla A, Jantasuriyarat C, Patarapuwadol S, Vanavichit A, Toojinda T. Genome-wide association mapping of virulence gene in rice blast fungus Magnaporthe oryzae using a genotyping by sequencing approach. Genomics 2018; 111:661-668. [PMID: 29775784 DOI: 10.1016/j.ygeno.2018.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 05/04/2018] [Accepted: 05/11/2018] [Indexed: 01/22/2023]
Abstract
Magnaporthe oryzae is a fungal pathogen causing blast disease in many plant species. In this study, seventy three isolates of M. oryzae collected from rice (Oryza sativa) in 1996-2014 were genotyped using a genotyping-by-sequencing approach to detect genetic variation. An association study was performed to identify single nucleotide polymorphisms (SNPs) associated with virulence genes using 831 selected SNP and infection phenotypes on local and improved rice varieties. Population structure analysis revealed eight subpopulations. The division into eight groups was not related to the degree of virulence. Association mapping showed five SNPs associated with fungal virulence on chromosome 1, 2, 3, 4 and 7. The SNP on chromosome 1 was associated with virulence against RD6-Pi7 and IRBL7-M which might be linked to the previously reported AvrPi7.
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Affiliation(s)
- Siripar Korinsak
- Plant Breeding Program, Faculty of Agriculture at Kamphaeng Saen, Kesetsart University, Nakhon Pathom 73140, Thailand
| | - Sithichoke Tangphatsornruang
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, PathumThani 12120, Thailand
| | - Wirulda Pootakham
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, PathumThani 12120, Thailand
| | - Samart Wanchana
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, PathumThani 12120, Thailand
| | - Anucha Plabpla
- Interdisciplinary Graduate Program in Genetic Engineering, Kasetsart University, Bangkok 10900, Thailand
| | | | - Sujin Patarapuwadol
- Department of Plant Pathology, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Apichart Vanavichit
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand; Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
| | - Theerayut Toojinda
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, PathumThani 12120, Thailand.
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20
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Vanavichit A, Kamolsukyeunyong W, Siangliw M, Siangliw JL, Traprab S, Ruengphayak S, Chaichoompu E, Saensuk C, Phuvanartnarubal E, Toojinda T, Tragoonrung S. Thai Hom Mali Rice: Origin and Breeding for Subsistence Rainfed Lowland Rice System. RICE (NEW YORK, N.Y.) 2018; 11:20. [PMID: 29633040 PMCID: PMC5891439 DOI: 10.1186/s12284-018-0212-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 03/20/2018] [Indexed: 05/09/2023]
Abstract
The world-renowned Thai Hom Mali Rice has been the most important aromatic rice originating in Thailand. The aromatic variety was collected from Chachoengsao, a central province, and after pure-line selection, it was officially named as Khao Dawk Mali 105, (KDML105). Because of its superb fragrance and cooking quality, KDML105 has been a model variety for studying genes controlling grain quality and aroma. The aromatic gene was cloned in KDML105, as an amino aldehyde dehydrogenase (AMADH) or better known as BADH2 located on chromosome 8. Later on, all other aromatic rice genes were discovered as allelic to the AMADH. As a selection of local landrace variety found in rainfed areas, the Thai Jasmine rice showed adaptive advantages over improved irrigated rice in less fertile lowland rainfed conditions. Because KDML105 was susceptible to most diseases and insect pests, marker-assisted backcross selection (MABC) was used for the genetic improvement since 2000. After nearly 17 years of MABC for integrating new traits into KDML105, a new generation of KDML105, designated HM84, was developed which maintains the cooking quality and fragrance, and has gained advantages during flash flooding, disease, and insect outbreak.
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Affiliation(s)
- Apichart Vanavichit
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
- Agronomy Department, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
- Rice Gene Discovery Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | - Wintai Kamolsukyeunyong
- Rice Gene Discovery Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | - Meechai Siangliw
- Rice Gene Discovery Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | - Jonaliza L. Siangliw
- Rice Gene Discovery Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | - Suniyom Traprab
- Bureau of Rice Research and Development (Rice Department), 50 Paholyothin Rd, Chatuchak, Bangkok, 10900 Thailand
| | - Siriphat Ruengphayak
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | - Ekawat Chaichoompu
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | - Chatree Saensuk
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
| | | | - Theerayut Toojinda
- Rice Gene Discovery Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Kasetsart University, Kamphaeng Saen, Nakhon Pathom, 73140 Thailand
- Plant Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, 113 Thailand Science Park, Khlong Luang, Pathum Thani, 12120 Thailand
| | - Somvong Tragoonrung
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, 113 Thailand Science Park, Khlong Luang, Pathum Thani, 12120 Thailand
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Pilet-Nayel ML, Moury B, Caffier V, Montarry J, Kerlan MC, Fournet S, Durel CE, Delourme R. Quantitative Resistance to Plant Pathogens in Pyramiding Strategies for Durable Crop Protection. FRONTIERS IN PLANT SCIENCE 2017; 8:1838. [PMID: 29163575 PMCID: PMC5664368 DOI: 10.3389/fpls.2017.01838] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/10/2017] [Indexed: 05/18/2023]
Abstract
Quantitative resistance has gained interest in plant breeding for pathogen control in low-input cropping systems. Although quantitative resistance frequently has only a partial effect and is difficult to select, it is considered more durable than major resistance (R) genes. With the exponential development of molecular markers over the past 20 years, resistance QTL have been more accurately detected and better integrated into breeding strategies for resistant varieties with increased potential for durability. This review summarizes current knowledge on the genetic inheritance, molecular basis, and durability of quantitative resistance. Based on this knowledge, we discuss how strategies that combine major R genes and QTL in crops can maintain the effectiveness of plant resistance to pathogens. Combining resistance QTL with complementary modes of action appears to be an interesting strategy for breeding effective and potentially durable resistance. Combining quantitative resistance with major R genes has proven to be a valuable approach for extending the effectiveness of major genes. In the plant genomics era, improved tools and methods are becoming available to better integrate quantitative resistance into breeding strategies. Nevertheless, optimal combinations of resistance loci will still have to be identified to preserve resistance effectiveness over time for durable crop protection.
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Affiliation(s)
- Marie-Laure Pilet-Nayel
- Institute for Genetics, Environment and Plant Protection (INRA), UMR 1349, Leu Rheu, France
- PISOM, UMT INRA-Terres Inovia, Le Rheu, France
| | | | - Valérie Caffier
- Research Institute of Horticulture and Seeds (INRA), UMR 1345, Beaucouzé, France
| | - Josselin Montarry
- Institute for Genetics, Environment and Plant Protection (INRA), UMR 1349, Leu Rheu, France
| | - Marie-Claire Kerlan
- Institute for Genetics, Environment and Plant Protection (INRA), UMR 1349, Leu Rheu, France
| | - Sylvain Fournet
- Institute for Genetics, Environment and Plant Protection (INRA), UMR 1349, Leu Rheu, France
| | - Charles-Eric Durel
- Research Institute of Horticulture and Seeds (INRA), UMR 1345, Beaucouzé, France
| | - Régine Delourme
- Institute for Genetics, Environment and Plant Protection (INRA), UMR 1349, Leu Rheu, France
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