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Zhao Y, Hao Y, Dong Z, Tang W, Wang X, Li J, Wang L, Hu Y, Fang L, Guan X, Gu F, Liu Z, Zhang Z. Identification and expression analysis of LEA gene family members in pepper (Capsicum annuum L.). FEBS Open Bio 2023; 13:2246-2262. [PMID: 37907961 PMCID: PMC10699114 DOI: 10.1002/2211-5463.13718] [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: 04/03/2023] [Revised: 09/12/2023] [Accepted: 10/17/2023] [Indexed: 11/02/2023] Open
Abstract
Pepper (Capsicum annuum L.) is an economically important crop containing capsaicinoids in the seed and placenta, which has various culinary, medical, and industrial applications. Late embryogenesis abundant (LEA) proteins are a large group of hydrophilic proteins participating in the plant stress response and seed development. However, to date there have been no genome-wide analyses of the LEA gene family in pepper. In the present study, 82 LEA genes were identified in the C. annuum genome and classified into nine subfamilies. Most CaLEA genes contain few introns (≤ 2) and are unevenly distributed across 10 chromosomes. Eight pairs of tandem duplication genes and two pairs of segmental duplication genes were identified in the LEA gene family; these duplicated genes were highly conserved and may have performed similar functions during evolution. Expression profile analysis indicated that CaLEA genes exhibited different tissue expression patterns, especially during embryonic development and stress response, particularly in cold stress. Three out of five CaLEA genes showed induced expression upon cold treatment. In summary, we have comprehensively reviewed the LEA gene family in pepper, offering a new perspective on the evolution of this family.
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Affiliation(s)
- Yongyan Zhao
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Yupeng Hao
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Zeyu Dong
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Wenchen Tang
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | | | - Jun Li
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Luyao Wang
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Yan Hu
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Lei Fang
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Xueying Guan
- Hainan InstituteZhejiang UniversitySanyaChina
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, Institute of Crop Science, Plant Precision Breeding Academy, College of Agriculture and BiotechnologyZhejiang UniversityHangzhouChina
| | - Fenglin Gu
- Spice and Beverage Research Institute, Sanya Research InstituteChinese Academy of Tropical Agricultural Sciences/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off‐Season Reproduction RegionsSanyaChina
| | - Ziji Liu
- Tropical Crops Genetic Resources InstituteChinese Academy of Tropical Agricultural Sciences/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of AgricultureHaikouChina
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Characterization of OsLEA1a and its inhibitory effect on the resistance of E. coli to diverse abiotic stresses. Int J Biol Macromol 2016; 91:1010-7. [PMID: 27339321 DOI: 10.1016/j.ijbiomac.2016.06.056] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 11/23/2022]
Abstract
OsLEA1a is a late embryogenesis abundant (LEA) protein gene from Oryza sativa L, which contains an open reading frame of 282-bp that encodes a putative polypeptide of 93 amino acids. OsLEA1a protein contains abundant of Lys, Ala, Glu, Asp, Gly, Arg and Leu, but depleted in Cys, His, Phe, Trp and Tyr residues; and is strongly hydrophilic. OsLEA1a includes six helical domains and a β-sheet domain. Real-time PCR analysis showed that OsLEA1a was expressed in roots, leaves and panicles of rice, with no or only a few transcripts in stem tissues, and remained at a relatively higher level in leaves during the tillering period, the heading period, the filling period and the full ripe period. To make sense of OsLEA1a functions, TrxA-OsLEA1a fusion protein expression vector and OsLEA1a protein expression vector were transformed into Escherichia coli DL21 (DE3), respectively. The accumulation of the TrxA-OsLEA1a fusion protein or OsLEA1a protein interfered with the resistance of E. coli to high salinity, metal ions, hyperosmotic, oxidation, heat and freeze-thaw stresses. The purified TrxA-OsLEA1a fusion protein reduced stabilization of LDH and increased damage of diverse abiotic stresses to LDH. The findings suggested that the OsLEA1a may confor antibacterial activity under abiotic stresses.
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Wang M, Li P, Li C, Pan Y, Jiang X, Zhu D, Zhao Q, Yu J. SiLEA14, a novel atypical LEA protein, confers abiotic stress resistance in foxtail millet. BMC PLANT BIOLOGY 2014; 14:290. [PMID: 25404037 PMCID: PMC4243736 DOI: 10.1186/s12870-014-0290-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 10/15/2014] [Indexed: 05/05/2023]
Abstract
BACKGROUND Late embryogenesis abundant (LEA) proteins are involved in protecting higher plants from damage caused by environmental stresses. Foxtail millet (Setaria italica) is an important cereal crop for food and feed in semi-arid areas. However, the molecular mechanisms underlying tolerance to these conditions are not well defined. RESULTS Here, we characterized a novel atypical LEA gene named SiLEA14 from foxtail millet. It contains two exons separated by one intron. SiLEA14 was expressed in roots, stems, leaves, inflorescences and seeds at different levels under normal growth conditions. In addition, SiLEA14 was dramatically induced by osmotic stress, NaCl and exogenous abscisic acid. The SiLEA14 protein was localized in the nucleus and the cytoplasm. Overexpression of SiLEA14 improved Escherichia coli growth performance compared with the control under salt stress. To further assess the function of SiLEA14 in plants, transgenic Arabidopsis and foxtail millet plants that overexpressed SiLEA14 were obtained. The transgenic Arabidopsis seedlings showed higher tolerance to salt and osmotic stress than the wild type (WT). Similarly, the transgenic foxtail millet showed improved growth under salt and drought stresses compared with the WT. Taken together, our results indicated that SiLEA14 is a novel atypical LEA protein and plays important roles in resistance to abiotic stresses in plants. CONCLUSION We characterized a novel atypical LEA gene SiLEA14 from foxtail millet, which plays important roles in plant abiotic stress resistance. Modification of SiLEA14 expression may improve abiotic stress resistance in agricultural crops.
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Affiliation(s)
- Meizhen Wang
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
- />Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, 100193 China
| | - Ping Li
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Cong Li
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Yanlin Pan
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Xiyuan Jiang
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Dengyun Zhu
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Qian Zhao
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
| | - Jingjuan Yu
- />State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian District, Beijing, 100193 China
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Molecular characterization, heterologous expression and resistance analysis of OsLEA3-1 from Oryza sativa. Biologia (Bratisl) 2014. [DOI: 10.2478/s11756-014-0362-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yu X, Bai G, Liu S, Luo N, Wang Y, Richmond DS, Pijut PM, Jackson SA, Yu J, Jiang Y. Association of candidate genes with drought tolerance traits in diverse perennial ryegrass accessions. JOURNAL OF EXPERIMENTAL BOTANY 2013; 64:1537-51. [PMID: 23386684 PMCID: PMC3617828 DOI: 10.1093/jxb/ert018] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Drought is a major environmental stress limiting growth of perennial grasses in temperate regions. Plant drought tolerance is a complex trait that is controlled by multiple genes. Candidate gene association mapping provides a powerful tool for dissection of complex traits. Candidate gene association mapping of drought tolerance traits was conducted in 192 diverse perennial ryegrass (Lolium perenne L.) accessions from 43 countries. The panel showed significant variations in leaf wilting, leaf water content, canopy and air temperature difference, and chlorophyll fluorescence under well-watered and drought conditions across six environments. Analysis of 109 simple sequence repeat markers revealed five population structures in the mapping panel. A total of 2520 expression-based sequence readings were obtained for a set of candidate genes involved in antioxidant metabolism, dehydration, water movement across membranes, and signal transduction, from which 346 single nucleotide polymorphisms were identified. Significant associations were identified between a putative LpLEA3 encoding late embryogenesis abundant group 3 protein and a putative LpFeSOD encoding iron superoxide dismutase and leaf water content, as well as between a putative LpCyt Cu-ZnSOD encoding cytosolic copper-zinc superoxide dismutase and chlorophyll fluorescence under drought conditions. Four of these identified significantly associated single nucleotide polymorphisms from these three genes were also translated to amino acid substitutions in different genotypes. These results indicate that allelic variation in these genes may affect whole-plant response to drought stress in perennial ryegrass.
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Affiliation(s)
- Xiaoqing Yu
- Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Guihua Bai
- USDA-ARS Hard Winter Wheat Genetics Research Unit, Manhattan, KS 66506, USA
| | - Shuwei Liu
- School of Life Science, Shandong University, Jinan 250100, China
| | - Na Luo
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ying Wang
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, USA
| | | | - Paula M. Pijut
- USDA-Forest Service, Northern Research Station, Hardwood Tree Improvement and Regeneration Center, West Lafayette, IN 47907, USA
| | - Scott A. Jackson
- Center for Applied Genetic Technologies, The University of Georgia, Athens, GA 30602, USA
| | - Jianming Yu
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA
| | - Yiwei Jiang
- Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
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Du D, Zhang Q, Cheng T, Pan H, Yang W, Sun L. Genome-wide identification and analysis of late embryogenesis abundant (LEA) genes in Prunus mume. Mol Biol Rep 2012. [PMID: 23086279 DOI: 10.1007/s11033‐012‐2250‐3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Late embryogenesis abundant (LEA) proteins play important roles in plant desiccation tolerance. In this study, 30 LEA genes were identified from Chinese plum (Prunus mume) through genome-wide analysis. The PmLEA genes are distributed on all Chinese plum chromosomes except chromosome 3. Twelve (40 %) and five PmLEA genes are arranged in tandem and segmental duplications, respectively. The PmLEA genes could be divided into eight groups (LEA_1, LEA_2, LEA_3, LEA_4, LEA_5, PvLEA18, dehydrin and seed maturation protein). Ten gene conversion events were observed and most of them (70 %) were identified in dehydrin group. Most PmLEA genes were highly expressed in flower (22/30) and up-regulated by ABA treatment (19/30).
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Affiliation(s)
- Dongliang Du
- College of Landscape Architecture, China National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, 100083, China
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Genome-wide identification and analysis of late embryogenesis abundant (LEA) genes in Prunus mume. Mol Biol Rep 2012; 40:1937-46. [PMID: 23086279 DOI: 10.1007/s11033-012-2250-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 10/10/2012] [Indexed: 10/27/2022]
Abstract
Late embryogenesis abundant (LEA) proteins play important roles in plant desiccation tolerance. In this study, 30 LEA genes were identified from Chinese plum (Prunus mume) through genome-wide analysis. The PmLEA genes are distributed on all Chinese plum chromosomes except chromosome 3. Twelve (40 %) and five PmLEA genes are arranged in tandem and segmental duplications, respectively. The PmLEA genes could be divided into eight groups (LEA_1, LEA_2, LEA_3, LEA_4, LEA_5, PvLEA18, dehydrin and seed maturation protein). Ten gene conversion events were observed and most of them (70 %) were identified in dehydrin group. Most PmLEA genes were highly expressed in flower (22/30) and up-regulated by ABA treatment (19/30).
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He S, Tan L, Hu Z, Chen G, Wang G, Hu T. Molecular characterization and functional analysis by heterologous expression in E. coli under diverse abiotic stresses for OsLEA5, the atypical hydrophobic LEA protein from Oryza sativa L. Mol Genet Genomics 2011; 287:39-54. [PMID: 22127413 DOI: 10.1007/s00438-011-0660-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2011] [Accepted: 11/12/2011] [Indexed: 10/15/2022]
Abstract
In this study, we report the molecular characterization and functional analysis of OsLEA5 gene, which belongs to the atypical late embryogenesis abundant (LEA) group 5C from Oryza sativa L. The cDNA of OsLEA5 contains a 456 bp ORF encoding a polypeptide of 151 amino acids with a calculated molecular mass of 16.5 kDa and a theoretical pI of 5.07. The OsLEA5 polypeptide is rich in Leu (10%), Ser (8.6%), and Asp (8.6%), while Cys, Trp, and Gln residue contents are very low, which are 2, 1.3, and 1.3%, respectively. Bioinformatic analysis revealed that group 5C LEA protein subfamily contains a Pfam:LEA_2 domain architecture and is highly hydrophobic, intrinsically ordered with largely β-sheet and specific amino acid composition and distribution. Real-time PCR analysis showed that OsLEA5 was expressed in different tissue organs during different development stages of rice. The expression levels of OsLEA5 in the roots and panicles of full ripe stage were dramatically increased. The results of stress tolerance and cell viability assay demonstrated that recombinant E. coli cells producing OsLEA5 fusion protein exhibited improved resistance against diverse abiotic stresses: high salinity, osmotic, freezing, heat, and UV radiation. The OsLEA5 protein confers stabilization of the LDH under different abiotic stresses, such as heating, freeze-thawing, and drying in vitro. The combined results indicated that OsLEA5 protein was a hydrophobic atypical LEA and closely associated with resistance to multiple abiotic stresses. This research offered the valuable information for the development of crops with enhanced resistance to diverse stresses.
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Affiliation(s)
- Shuai He
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
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Hu T, Zeng H, He S, Wu Y, Wang G, Huang X. Molecular Analysis of OsLEA4 and Its Contributions to Improve E. coli Viability. Appl Biochem Biotechnol 2011; 166:222-33. [DOI: 10.1007/s12010-011-9418-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Accepted: 10/18/2011] [Indexed: 11/29/2022]
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Veeranagamallaiah G, Prasanthi J, Reddy KE, Pandurangaiah M, Babu OS, Sudhakar C. Group 1 and 2 LEA protein expression correlates with a decrease in water stress induced protein aggregation in horsegram during germination and seedling growth. JOURNAL OF PLANT PHYSIOLOGY 2011; 168:671-7. [PMID: 21035898 DOI: 10.1016/j.jplph.2010.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2010] [Revised: 09/24/2010] [Accepted: 09/26/2010] [Indexed: 05/13/2023]
Abstract
Plants produce an array of proteins as a part of a global response to protect the cell metabolism when they grow under environmental conditions such as drought and salinity that generate reduced water potential. The synthesis of hydrophilic proteins is a major part of the response to water deficit conditions. An increased expression of LEA proteins is thought to be one of the primary lines of defense to prevent the loss of intercellular water during adverse conditions. These LEA proteins are known to prevent aggregation of a wide range of other proteins. In this study we report the water stress induced protein aggregation and its abrogation followed by expression of group 1 and group 2 LEA proteins of water soluble proteomes in horsegram. Water stress caused an increased protein aggregation with magnitude and duration of stress in horsegram seedlings. Tissue-specific expression of LEA 1 protein decreased in the embryonic axis when compared to cotyledons in 24h stressed seedlings. We found no cross reaction of LEA 1 with proteome of 48h stressed embryonic axis and 72h stressed root and shoot samples. However, LEA 2 antibodies were cross reacted with four polypeptides with different molecular mass in shoot tissue samples and found no reaction with root proteome as evidenced from immuno-blot analysis. The role of LEA proteins in relation to protein aggregation during water stressed conditions was discussed.
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