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Kwon JS, Shilpha J, Lee J, Yeom SI. Beyond NGS data sharing for plant ecological resilience and improvement of agronomic traits. Sci Data 2024; 11:466. [PMID: 38719829 PMCID: PMC11079010 DOI: 10.1038/s41597-024-03305-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
Abstract
Decoding complex plant omics is essential for advancing our understanding of plant biology, evolution, and breeding as well as for practical applications in agriculture, conservation, and biotechnology. The advent of Next-Generation Sequencing (NGS) has revolutionized global plant genomic research, offering high-throughput, cost-effective, and accurate methods for generating genomic data. However, challenges still exist that suggest an entirely unresolved genome characterized by high heterozygosity, extensive repetitive sequences, and complex ploidy features. In addition, individual investigation of genomic information from various genetic resources is essential for omics research, as there are differences in traits within a single breed beyond a species due to the uniqueness of sequence variation. This article provides high-quality genomic and transcriptomic insights targeted at the agronomical background.
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Affiliation(s)
- Ji-Su Kwon
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Institute of Agriculture & Life Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Jayabalan Shilpha
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Institute of Agriculture & Life Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Junesung Lee
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Institute of Agriculture & Life Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Seon-In Yeom
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Institute of Agriculture & Life Science, Gyeongsang National University, Jinju, 52828, Korea.
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Bhatt S, Faridi N, Raj SMP, Agarwal A, Punetha M. Recent advances in immuno-based methods for the detection of Ralstonia solanacearum. J Microbiol Methods 2024; 217-218:106889. [PMID: 38211840 DOI: 10.1016/j.mimet.2024.106889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/08/2024] [Accepted: 01/08/2024] [Indexed: 01/13/2024]
Abstract
Ralstonia solanacearum (RS) is a widely recognized phytopathogenic bacterium which is responsible for causing devastating losses in a wide range of economically significant crops. Timely and accurate detection of this pathogen is pivotal to implementing effective disease management strategies and preventing crop losses. This review provides a comprehensive overview of recent advances in immuno-based detection methods for RS. The review begins by introducing RS, highlighting its destructive potential and the need for point-of-care detection techniques. Subsequently, it explores traditional detection methods and their limitations, emphasizing the need for innovative approaches. The main focus of this review is on immuno-based detection methods and it discusses recent advancements in serological detection techniques. Furthermore, the review sheds light on the challenges and prospects of immuno-based detection of RS. It emphasizes the importance of developing rapid, field-deployable assays that can be used by farmers and researchers alike. In conclusion, this review provides valuable insights into the recent advances in immuno-based detection methods for RS.
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Affiliation(s)
- Shalini Bhatt
- P P Savani University, Surat 394125, Gujarat, India; Defence Institute of Bio-Energy Research (DIBER), DRDO, Nainital, Haldwani 263139, Uttarakhand, India.
| | - Neha Faridi
- Defence Institute of Bio-Energy Research (DIBER), DRDO, Nainital, Haldwani 263139, Uttarakhand, India
| | - S Merwyn P Raj
- Defence Institute of Bio-Energy Research (DIBER), DRDO, Nainital, Haldwani 263139, Uttarakhand, India
| | - Ankur Agarwal
- Defence Institute of Bio-Energy Research (DIBER), DRDO, Nainital, Haldwani 263139, Uttarakhand, India
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Gong C, Wang Z, Li Z, Sun B, Luo W, Luo S, Chen S, Mai P, Li Z, Li Y, Wang Y, Li T. A QTL of eggplant shapes the rhizosphere bacterial community, co-responsible for resistance to bacterial wilt. HORTICULTURE RESEARCH 2024; 11:uhad272. [PMID: 38333730 PMCID: PMC10852381 DOI: 10.1093/hr/uhad272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/06/2023] [Indexed: 02/10/2024]
Abstract
Resistant crop cultivars can recruit beneficial rhizobacteria to resist disease. However, whether this recruitment is regulated by quantitative trait loci (QTL) is unclear. The role of QTL in recruiting specific bacteria against bacterial wilt (BW) is an important question of practical significance to disease management. Here, to identify QTL controlling BW resistance, Super-BSA was performed in F2 plants derived from resistant eggplant cultivar R06112 × susceptible cultivar S55193. The QTL was narrowed down through BC1F1-BC3F1 individuals by wilting symptoms and KASP markers. Rhizosphere bacterial composition of R06112, S55193, and resistant individuals EB158 (with the QTL) and susceptible individuals EB327 (without QTL) from BC2F1 generation were assessed by Illumina sequencing-based analysis, and the activation of plant immunity by the bacterial isolates was analyzed. Evidence showed that BW-resistant is controlled by one QTL located at the 270 kb region on chromosome 10, namely EBWR10, and nsLTPs as candidate genes confirmed by RNA-Seq. EBWR10 has a significant effect on rhizobacteria composition and significantly recruits Bacillus. pp. A SynCom of three isolated Bacillus. pp trains significantly reduced the disease incidence, changed activities of CAT, PPO, and PAL and concentration of NO, H2O2, and O2-, activated SA and JA signaling-dependent ISR, and displayed immune activation against Ralstonia solanacearum in eggplant. Our findings demonstrate for the first time that the QTL can recruit beneficial rhizobacteria, which jointly promote the suppression of BW. This method charts a path to develop the QTL in resistant cultivar-driven probiotics to ameliorate plant diseases.
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Affiliation(s)
- Chao Gong
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Zhenshuo Wang
- Department of Plant Pathology, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Zhiliang Li
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Baojuan Sun
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Wenlong Luo
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Shanwei Luo
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Shuting Chen
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Peiting Mai
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Zhenxing Li
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
| | - Ye Li
- Harbin Academy of Agricultural Sciences, Harbin, Heilongjiang, 150029, China
| | - Yikui Wang
- Institute of Vegetable, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, 530007, China
| | - Tao Li
- Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory for New Technology Research of Vegetables, Vegetable Research Institute, Guangzhou, 510640, China
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Vogelaar MAW, van de Bilt JLJ, Blom NI, Pel MJC, van Doorn BJA, Landman NM, Gorkink-Smits PPMA, Raaymakers TM, Vreeburg RAM, Bergsma-Vlami M. Presence of Ralstonia pseudosolanacearum (Phylotype I) in Aquatic Environments in the Netherlands. PLANT DISEASE 2023; 107:2320-2324. [PMID: 36647186 DOI: 10.1094/pdis-11-22-2628-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: 06/17/2023]
Abstract
Ralstonia pseudosolanacearum, a European Union quarantine organism, was until recently absent in the aquatic environments and outdoor cultivation systems of the region. This bacterium was only sporadically reported in restricted greenhouse cultivation systems in some EU countries. In this paper, we report the first findings of R. pseudosolanacearum (phylotype I) in surface water in two distinct geographic locations in the Netherlands in 2020. In 2021, the population of R. pseudosolanacearum in surface water ranged from 104 to 106 CFU/liter. An inoculum reservoir for R. pseudosolanacearum in these aquatic environments was the wild bittersweet plant where population densities ranged from 105 to 107 CFU/ml concentrated bittersweet extract. The virulence of the R. pseudosolanacearum isolates from surface water and bittersweet was confirmed by a pathogenicity test on Solanum lycopersicum cv. Moneymaker plants, resulting in wilting and necrosis of the plants. Sequence analysis of the egl locus of R. pseudosolanacearum isolates from surface water and bittersweet revealed that these isolates are closely related to R. pseudosolanacearum (phylotype I) isolates found previously in the Netherlands on rose. R. pseudosolanacearum (phylotype I) has a very broad host plant range, including potato, many ornamentals, and other economically important crops. This highlights the risk for various host plants grown in the vicinity of the geographic locations where R. pseudosolanacearum has been found and shows the importance of unraveling the epidemiological parameters of the survival, establishment, and spread of R. pseudosolanacearum in temperate climates.
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Affiliation(s)
- M A W Vogelaar
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - J L J van de Bilt
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - N I Blom
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - M J C Pel
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - B J A van Doorn
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - N M Landman
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - P P M A Gorkink-Smits
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - T M Raaymakers
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
| | - R A M Vreeburg
- Dutch General Inspection Service (NAK), 8304 AS Emmeloord, the Netherlands
| | - M Bergsma-Vlami
- Netherlands Institute for Vectors, Invasive Plants and Plant Health (NIVIP), 6700 HC Wageningen, the Netherlands
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Yang S, Cai W, Shen L, Wu R, Cao J, Tang W, Lu Q, Huang Y, Guan D, He S. Solanaceous plants switch to cytokinin-mediated immunity against Ralstonia solanacearum under high temperature and high humidity. PLANT, CELL & ENVIRONMENT 2022; 45:459-478. [PMID: 34778967 DOI: 10.1111/pce.14222] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Plant diseases generally tend to be more serious under conditions of high temperature and high humidity (HTHH) than under ambient temperature, but plant immunity against pathogen attacks under HTHH remains elusive. Herein, we used pepper as an example to study how Solanaceae cope with Ralstonia solanacearum infection (RSI) under HTHH by performing RNA-seq combined with the reverse genetic method. The result showed that immunities mediated by salicylic acid (SA) and jasmonic acid (JA) in pepper roots were activated by RSI under ambient temperature. However, upon RSI under HTHH, JA signalling was blocked and SA signalling was activated early but its duration was greatly shortened in pepper roots, instead, expression of CaIPT5 and Glutathione S-transferase encoding genes, as well as endogenous content of trans-Zeatin, were enhanced. In addition, by silencing in pepper plants and overexpression in Nicotiana benthamiana, CaIPT5 was found to act positively in the immune response to RSI under HTHH in a way related to CaPRP1 and CaMgst3. Furthermore, the susceptibility of pepper, tomato and tobacco to RSI under HTHH was significantly reduced by exogenously applied tZ, but not by either SA or MeJA. All these data collectively suggest that pepper employs cytokinin-mediated immunity to cope with RSI under HTHH.
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Affiliation(s)
- Sheng Yang
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Weiwei Cai
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Lei Shen
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Ruijie Wu
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Jianshen Cao
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Weiqi Tang
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Qiaoling Lu
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Yu Huang
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Deyi Guan
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
| | - Shuilin He
- National Education Ministry, Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- Agricultural College, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China
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QTL Mapping of Resistance to Bacterial Wilt in Pepper Plants (Capsicum annuum) Using Genotyping-by-Sequencing (GBS). HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8020115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Bacterial wilt (BW) disease, which is caused by Ralstonia solanacearum, is one globally prevalent plant disease leading to significant losses of crop production and yield with the involvement of a diverse variety of monocot and dicot host plants. In particular, the BW of the soil-borne disease seriously influences solanaceous crops, including peppers (sweet and chili peppers), paprika, tomatoes, potatoes, and eggplants. Recent studies have explored genetic regions that are associated with BW resistance for pepper crops. However, owing to the complexity of BW resistance, the identification of the genomic regions controlling BW resistance is poorly understood and still remains to be unraveled in the pepper cultivars. In this study, we performed the quantitative trait loci (QTL) analysis to identify genomic loci and alleles, which play a critical role in the resistance to BW in pepper plants. The disease symptoms and resistance levels for BW were assessed by inoculation with R. solanacearum. Genotyping-by-sequencing (GBS) was utilized in 94 F2 segregating populations originated from a cross between a resistant line, KC352, and a susceptible line, 14F6002-14. A total of 628,437 single-nucleotide polymorphism (SNP) was obtained, and a pepper genetic linkage map was constructed with putative 1550 SNP markers via the filtering criteria. The linkage map exhibited 16 linkage groups (LG) with a total linkage distance of 828.449 cM. Notably, QTL analysis with CIM (composite interval mapping) method uncovered pBWR-1 QTL underlying on chromosome 01 and explained 20.13 to 25.16% by R2 (proportion of explained phenotyphic variance by the QTL) values. These results will be valuable for developing SNP markers associated with BW-resistant QTLs as well as for developing elite BW-resistant cultivars in pepper breeding programs.
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Kang WH, Lee J, Koo N, Kwon JS, Park B, Kim YM, Yeom SI. Universal gene co-expression network reveals receptor-like protein genes involved in broad-spectrum resistance in pepper (Capsicum annuum L.). HORTICULTURE RESEARCH 2022; 9:uhab003. [PMID: 35043174 PMCID: PMC8968494 DOI: 10.1093/hr/uhab003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 09/08/2021] [Indexed: 05/21/2023]
Abstract
Receptor-like proteins (RLPs) on plant cells have been implicated in immune responses and developmental processes. Although hundreds of RLP genes have been identified in plants, only a few RLPs have been functionally characterized in a limited number of plant species. Here, we identified RLPs in the pepper (Capsicum annuum) genome and performed comparative transcriptomics coupled with the analysis of conserved gene co-expression networks (GCNs) to reveal the role of core RLP regulators in pepper-pathogen interactions. A total of 102 RNA-seq datasets of pepper plants infected with four pathogens were used to construct CaRLP-targeted GCNs (CaRLP-GCNs). Resistance-responsive CaRLP-GCNs were merged to construct a universal GCN. Fourteen hub CaRLPs, tightly connected with defense-related gene clusters, were identified in eight modules. Based on the CaRLP-GCNs, we evaluated whether hub CaRLPs in the universal GCN are involved in the biotic stress response. Of the nine hub CaRLPs tested by virus-induced gene silencing, three genes (CaRLP264, CaRLP277, and CaRLP351) showed defense suppression with less hypersensitive response-like cell death in race-specific and non-host resistance response to viruses and bacteria, respectively, and consistently enhanced susceptibility to Ralstonia solanacearum and/or Phytophthora capsici. These data suggest that key CaRLPs are involved in the defense response to multiple biotic stresses and can be used to engineer a plant with broad-spectrum resistance. Together, our data show that generating a universal GCN using comprehensive transcriptome datasets can provide important clues to uncover genes involved in various biological processes.
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Affiliation(s)
- Won-Hee Kang
- Institute of Agriculture & Life Science, Gyeongsang National University, 501, Jinju-daero, Gajwa-dong, Jinju, 52828,
Republic of Korea
| | - Junesung Lee
- Department of Horticulture, Division of Applied Life Science (BK21 four), Gyeongsang National University, 501, Jinju-daero, Gajwa-dong, Jinju, 52828, Republic of Korea
| | - Namjin Koo
- Korean Bioinformation Center, Korea Research Institute of Bioscience and Biotechnology, 125, Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ji-Su Kwon
- Department of Horticulture, Division of Applied Life Science (BK21 four), Gyeongsang National University, 501, Jinju-daero, Gajwa-dong, Jinju, 52828, Republic of Korea
| | - Boseul Park
- Department of Horticulture, Division of Applied Life Science (BK21 four), Gyeongsang National University, 501, Jinju-daero, Gajwa-dong, Jinju, 52828, Republic of Korea
| | - Yong-Min Kim
- Korean Bioinformation Center, Korea Research Institute of Bioscience and Biotechnology, 125, Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Genome Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, 125, Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seon-In Yeom
- Institute of Agriculture & Life Science, Gyeongsang National University, 501, Jinju-daero, Gajwa-dong, Jinju, 52828,
Republic of Korea
- Department of Horticulture, Division of Applied Life Science (BK21 four), Gyeongsang National University, 501, Jinju-daero, Gajwa-dong, Jinju, 52828, Republic of Korea
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Kang WH, Park B, Lee J, Yeom SI. Tissue-Specific RNA-Seq Analysis and Identification of Receptor-Like Proteins Related to Plant Growth in Capsicum annuum. PLANTS (BASEL, SWITZERLAND) 2021; 10:972. [PMID: 34068172 PMCID: PMC8152994 DOI: 10.3390/plants10050972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/03/2021] [Accepted: 05/12/2021] [Indexed: 11/26/2022]
Abstract
Receptor-like proteins (RLPs) are a gene family of cell surface receptors that are involved in plant growth, development, and disease resistance. In a recent study, 438 pepper RLP genes were identified in the Capsicum annuum genome (CaRLPs) and determined to be present in response to multiple biotic stresses. To further understand the role of CaRLPs in plant growth and development, we analyzed expression patterns of all CaRLPs from various pepper tissues and developmental stages using RNA-seq. Ten CaRLP genes were selected for further analysis according to transcript levels with hierarchical clustering. The selected CaRLP genes displayed similarity of motifs within the same groups and structures typical of RLPs. To examine RLP function in growth and development, we performed loss-of-function analysis using a virus-induced gene silencing system. Three of the ten tested CaRLPs (CaRLP238, 253, and 360) in silenced plants exhibited phenotypic alteration with growth retardation compared to controls. All three gene-silenced peppers showed significant differences in root dry weight. Only CaRLP238 had significant differences in both root and shoot dry weight. Our results suggest that CaRLPs may play important roles in regulation of plant growth and development as well as function in defense responses to biotic stresses in the RLP gene family.
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Affiliation(s)
- Won-Hee Kang
- Institute of Agriculture & Life Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Boseul Park
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Korea; (B.P.); (J.L.)
| | - Junesung Lee
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Korea; (B.P.); (J.L.)
| | - Seon-In Yeom
- Institute of Agriculture & Life Science, Gyeongsang National University, Jinju 52828, Korea;
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Korea; (B.P.); (J.L.)
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