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Lang Z, Xu Z, Li L, He Y, Zhao Y, Zhang C, Hong G, Zhang X. Comprehensive Genomic Analysis of Trihelix Family in Tea Plant ( Camellia sinensis) and Their Putative Roles in Osmotic Stress. PLANTS (BASEL, SWITZERLAND) 2023; 13:70. [PMID: 38202377 PMCID: PMC10780335 DOI: 10.3390/plants13010070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
In plants, Trihelix transcription factors are responsible for regulating growth, development, and reaction to various abiotic stresses. However, their functions in tea plants are not yet fully understood. This study identified a total of 40 complete Trihelix genes in the tea plant genome, which are classified into five clades: GT-1 (5 genes), GT-2 (8 genes), GTγ (2 genes), SH4 (7 genes), and SIP1 (18 genes). The same subfamily exhibits similar gene structures and functional domains. Chromosomal mapping analysis revealed that chromosome 2 has the most significant number of trihelix family members. Promoter analysis identified cis-acting elements in C. sinensis trihelix (CsTH), indicating their potential to respond to various phytohormones and stresses. The expression analysis of eight representative CsTH genes from four subfamilies showed that all CsTHs were expressed in more tissues, and three CsTHs were significantly induced under ABA, NaCl, and drought stress. This suggests that CsTHs plays an essential role in tea plant growth, development, and response to osmotic stress. Furthermore, yeast strains have preliminarily proven that CsTH28, CsTH36, and CsTH39 can confer salt and drought tolerance. Our study provides insights into the phylogenetic relationships and functions of the trihelix transcription factors in tea plants. It also presents new candidate genes for stress-tolerance breeding.
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Affiliation(s)
- Zhuoliang Lang
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
| | - Zelong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
- College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Linying Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
| | - Yuqing He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
| | - Yao Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
| | - Chi Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
| | - Gaojie Hong
- College of Tea Science and Tea Culture, Zhejiang A&F University, Hangzhou 311300, China
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
| | - Xueying Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China (L.L.)
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Li F, Chen G, Xie Q, Zhou S, Hu Z. Down-regulation of SlGT-26 gene confers dwarf plants and enhances drought and salt stress resistance in tomato. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:108053. [PMID: 37769452 DOI: 10.1016/j.plaphy.2023.108053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/05/2023] [Accepted: 09/22/2023] [Indexed: 09/30/2023]
Abstract
Plant architecture, an important agronomic trait closely associated with yield, is governed by a highly intricate molecular network. Despite extensive research, many mysteries surrounding this regulation remain unresolved. Trihelix transcription factor family plays a crucial role in the development of plant morphology and abiotic stresses. Here, we identified a novel trihelix transcription factor named SlGT-26, and its down-regulation led to significant alterations in plant architecture, including dwarfing, reduced internode length, smaller leaves, and shorter petioles. The dwarf phenotype of SlGT-26 silenced transgenic plants could be recovered after spraying exogenous GA3, and the GA3 content were decreased in the RNAi plants. Additionally, the expression levels of gibberellin-related genes were affected in the RNAi lines. These results indicate that the dwarf of SlGT-26-RNAi plants may be a kind of GA3-sensitive dwarf. SlGT-26 was response to drought and salt stress treatments. SlGT-26-RNAi transgenic plants demonstrated significantly enhanced drought resistance and salt tolerance in comparison to their wild-type tomato counterparts. SlGT-26-RNAi transgenic plants grew better, had higher relative water content and lower MDA and H2O2 contents. The expression of multiple stress-related genes was also up-regulated. In summary, we have discovered a novel gene, SlGT-26, which plays a crucial role in regulating plant architecture and in respond to drought and salt stress.
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Affiliation(s)
- Fenfen Li
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, 400030, China.
| | - Guoping Chen
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, 400030, China.
| | - Qiaoli Xie
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, 400030, China.
| | - Shengen Zhou
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, 400030, China.
| | - Zongli Hu
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, 400030, China.
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Kuzmitskaya P, Koroleva E, Urbanovich O. Genome-wide identification of trihelix transcription factors in the apple genome in silico. J Appl Genet 2023; 64:445-458. [PMID: 37454028 DOI: 10.1007/s13353-023-00770-y] [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: 02/10/2023] [Revised: 06/22/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
Trihelix transcription factors are involved in the growth and development of plants, as well as various stress responses. In the study presented, we identified 37 trihelix family genes in the apple genome (MdTH). The trihelix genes were located on 13 chromosomes. Phylogenetic analysis of these MdTH and the trihelix genes of other species divided them into six subfamilies: GT-1, GT-2, SH4, SIP1, GTγ, and GTδ. The genes of different groups significantly diverged in their gene structure and conserved functional domains. Cis-element analysis showed that promoter sequences of MdTH genes contained light response elements, phytohormone response elements, and stress-related cis-elements. The expression pattern analysis results demonstrated that MdTH were regulated by drought, salinity, as well as high and low temperatures. MdTH4 and MdTH24 were highly regulated by soil salinity, MdTH4-by drought. MdTH30 showed high expression under low temperature; MdTH8, MdTH20, and MdTH36-under high temperature.
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Affiliation(s)
- Polina Kuzmitskaya
- Institute of Genetics and Cytology of the National Academy of Sciences of Belarus, Minsk, Belarus.
| | - Ekaterina Koroleva
- Institute of Genetics and Cytology of the National Academy of Sciences of Belarus, Minsk, Belarus
| | - Oksana Urbanovich
- Institute of Genetics and Cytology of the National Academy of Sciences of Belarus, Minsk, Belarus
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Hu J, Liu T, Huo H, Liu S, Liu M, Liu C, Zhao M, Wang K, Wang Y, Zhang M. Genome-wide characterization, evolutionary analysis, and expression pattern analysis of the trihelix transcription factor family and gene expression analysis under MeJA treatment in Panax ginseng. BMC PLANT BIOLOGY 2023; 23:376. [PMID: 37525122 PMCID: PMC10392005 DOI: 10.1186/s12870-023-04390-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 07/22/2023] [Indexed: 08/02/2023]
Abstract
Panax ginseng is a well-known medicinal plant with several pharmacological uses in China. The trihelix family transcription factors, also known as GT factors, can be involved in the regulation of growth and developmental processes in plants. There have been no in-depth reports or systematic studies about the trihelix transcription factor in ginseng. In this study, the structure, chromosomal localization, gene duplication, phylogeny, functional differentiation, expression patterns and coexpression interactions of trihelix transcripts were analysed using bioinformatics methods based on the ginseng transcriptome database. Thirty-two trihelix transcription factor genes were identified in ginseng, and these genes were alternatively spliced to obtain 218 transcripts. These transcripts were unevenly distributed on different chromosomes of ginseng, and phylogenetic analysis classified the PgGT transcripts into five subgroups. Gene Ontology (GO) analysis classified PgGT transcripts into eight functional subclasses, indicating that they are functionally diverse. The expression pattern analysis of 218 PgGT transcripts revealed that their expression was tissue-specific and spatiotemporally-specific in 14 different tissues of 4-year-old ginseng, 4 different ages of ginseng roots, and 42 farmers' cultivars of 4-year-old ginseng roots. Despite the differences in the expression patterns of these transcripts, coexpression network analysis revealed that these transcripts could be expressed synergistically in ginseng. In addition, two randomly selected PgGT transcripts in each of the five different subfamilies were subjected to methyl jasmonate treatment at different times, and PgGT was able to respond to the regulation of methy1 jasmonate. These results provide a theoretical basis and gene resources for an in-depth study of the function of trihelix genes in other plants.
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Affiliation(s)
- Jian Hu
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Tao Liu
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Huimin Huo
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Sizhang Liu
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Mingming Liu
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Chang Liu
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Mingzhu Zhao
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China
| | - Kangyu Wang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China.
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China.
| | - Yi Wang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China.
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China.
| | - Meiping Zhang
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, 130118, China.
- Jilin Engineering Research Center Ginseng Genetic Resources Development and Utilization, Changchun, Jilin, 130118, China.
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Mao H, Zhang W, Lv J, Yang J, Yang S, Jia B, Song J, Wu M, Pei W, Ma J, Zhang B, Zhang J, Wang L, Yu J. Overexpression of cotton Trihelix transcription factor GhGT-3b_A04 enhances resistance to Verticillium dahliae and affects plant growth in Arabidopsis thaliana. JOURNAL OF PLANT PHYSIOLOGY 2023; 283:153947. [PMID: 36898190 DOI: 10.1016/j.jplph.2023.153947] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/28/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Verticillium wilt is a soil-borne fungal disease that severely affects cotton fiber yield and quality. Herein, a cotton Trihelix family gene, GhGT-3b_A04, was strongly induced by the fungal pathogen Verticillium dahliae. Overexpression of the gene in Arabidopsis thaliana enhanced the plant's resistance to Verticillium wilt but inhibited the growth of rosette leaves. In addition, the primary root length, root hair number, and root hair length increased in GhGT-3b_A04-overexpressing plants. The density and length of trichomes on the rosette leaves also increased. GhGT-3b_A04 localized to the nucleus, and transcriptome analysis revealed that it induced gene expression for salicylic acid synthesis and signal transduction and activated gene expression for disease resistance. The gene expression for auxin signal transduction and trichome development was reduced in GhGT-3b_A04-overexpressing plants. Our results highlight important regulatory genes for Verticillium wilt resistance and cotton fiber quality improvement. The identification of GhGT-3b_A04 and other important regulatory genes can provide crucial reference information for future research on transgenic cotton breeding.
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Affiliation(s)
- Haoming Mao
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Wenqing Zhang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Junyuan Lv
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Jiaxiang Yang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Shuxian Yang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Bing Jia
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Jikun Song
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Man Wu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Wenfeng Pei
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Jianjiang Ma
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Bingbing Zhang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Jinfa Zhang
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, 880033, USA.
| | - Li Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Jiwen Yu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, 450001, China; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
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Li Y, Hu Z, Dong Y, Xie Z. Overexpression of the cotton trihelix transcription factor GhGT23 in Arabidopsis mediates salt and drought stress tolerance by binding to GT and MYB promoter elements in stress-related genes. FRONTIERS IN PLANT SCIENCE 2023; 14:1144650. [PMID: 36938019 PMCID: PMC10017854 DOI: 10.3389/fpls.2023.1144650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Cotton (Gossypium hirsutum L.) is the world's most economically valuable textile crop. However, cotton plants are often subjected to numerous abiotic stresses that can dramatically limit yield. Trihelix transcription factors (TTFs) play important roles in abiotic stress responses in many plant species, and efforts to better understand their roles in cotton abiotic stress responses are ongoing. In this study, a member of the cotton TTF family (GhGT23) was functionally characterized. This protein contains a SANT domain and is a member of the SIP subfamily of TTF proteins. GhGT23 was significantly (p < 0.05) and highly expressed in cotton fiber compared to relatively low expression in other tissues. A significant (p < 0.05) increase in GhGT23 expression occurred in cotton seedlings within 12 hours of drought, salt, and ABA exposure. The GhGT23 protein localized in the nucleus but exhibited no signs of transactivation activity. GhGT23 overexpression in Arabidopsis conferred enhanced drought and salt stress tolerance. The expression of stress-related genes was higher in transgenic Arabidopsis expressing GhGT23 than in wild-type plants subjected to salt stress. The results of electrophoretic mobility shift assay revealed that GhGT23 could bind to the GT cis-elements GT-1Box (Box II), GT2-Box, GT3-Box, GT-3a (Site1-type), GT-3b, and Box as well as the MYB cis-elements MBS1 and MRE4. Our results demonstrate that GhGT23 positively regulates salt and drought stress responses, possibly by enhancing the expression of stress-related genes.
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Affiliation(s)
- Yue Li
- College of Life Science, Xinjiang Agricultural University, Urumqi, China
- Xinjiang Production and Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, China
| | - Ziyao Hu
- College of Life Science, Xinjiang Agricultural University, Urumqi, China
| | - Yongmei Dong
- Xinjiang Production and Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, China
| | - Zongming Xie
- Xinjiang Production and Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, China
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Liu M, Liu T, Liu W, Wang Z, Kong L, Lu J, Zhang Z, Su X, Liu X, Ma W, Ren W. Genome-Wide Identification and Expression Profiling Analysis of the Trihelix Gene Family and response of PgGT1 under Abiotic Stresses in Platycodon grandiflorus. Gene 2023; 869:147398. [PMID: 36990256 DOI: 10.1016/j.gene.2023.147398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/25/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023]
Abstract
The trihelix gene family plays an important role in plant growth and abiotic stress responses. Through the analysis of genomic and transcriptome data, 35 trihelix family members were identified for the first time in Platycodon grandiflorus; they were classified into five subfamilies: GT-1, GT-2, SH4, GTγ, and SIP1. The gene structure, conserved motifs and evolutionary relationships were analyzed. Prediction of physicochemical properties of the 35 trihelix proteins founded, the number of amino acid molecules is between 93 and 960, theoretical isoelectric point is between 4.24 and 9.94, molecular weight is between 9829.77 and 107435.38, 4 proteins among them were stable, and all GRAVY is negative. The full-length cDNA sequence of the PgGT1 gene of the GT-1 subfamily was cloned by PCR. It is a 1165 bp ORF encoding a 387 amino acid protein, with a molecular weight of 43.54 kDa. The predicted subcellular localization of the protein in the nucleus was experimentally verified. After being treated with NaCl, PEG6000, MeJA, ABA, IAA, SA, and ethephon, the expression of PgGT1 gene showed an up-regulated trend except for the roots treated with NaCl and ABA. This study laid a bioinformatics foundation for the research of trihelix gene family and the cultivation of excellent germplasm of P. grandiflorus.
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Liu HF, Zhang TT, Liu YQ, Kang H, Rui L, Wang DR, You CX, Xue XM, Wang XF. Genome-wide analysis of the 6B-INTERACTING PROTEIN1 gene family with functional characterization of MdSIP1-2 in Malus domestica. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 195:89-100. [PMID: 36621305 DOI: 10.1016/j.plaphy.2022.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Trihelix transcription factors consist of five subfamilies, including GT-1, GT-2, SH4, GTγ, and SIP1, which play important roles in the responses to biotic and abiotic stresses, however, seldom is known about the role of the SIP1 genes in apples. In this study, 12 MdSIP1 genes were first identified in apples by genome-wide analysis, and contained conserved MYB/SANT-like domains. Expression patterns analyses showed that the MdSIP1 genes had different tissue expression patterns, and different transcription levels in response to abiotic stresses, indicating that MdSIP1s may play multiple roles under various abiotic stresses. Among them, the MdSIP1-2 gene was cloned and ectopic transformed into Arabidopsis, and its biology function was identified. The subcellular localization showed that MdSIP1-2 protein was specifically localized in the nucleus, and that overexpression of MdSIP1-2 promoted the development of lateral roots, increased abscisic acid (ABA) sensitivity, and improved salt and drought tolerance. These findings suggested that MdSIP1-2 plays an important role in root development, ABA synthesis, and salt and drought stress tolerance. In conclusion, these results lay a solid foundation for determining the role of MdSIP1 in the growth and development and abiotic stress tolerance of apples.
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Affiliation(s)
- Hao-Feng Liu
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Ting-Ting Zhang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Ya-Qi Liu
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Hui Kang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Lin Rui
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Da-Ru Wang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Chun-Xiang You
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Xiao-Min Xue
- Shandong Institute of Pomology, Taian, Shandong, 271000, China.
| | - Xiao-Fei Wang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China.
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Wang Y, Tang M, Zhang Y, Huang M, Wei L, Lin Y, Xie J, Cheng J, Fu Y, Jiang D, Li B, Yu X. Coordinated regulation of plant defense and autoimmunity by paired trihelix transcription factors ASR3/AITF1 in Arabidopsis. THE NEW PHYTOLOGIST 2023; 237:914-929. [PMID: 36266950 DOI: 10.1111/nph.18562] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Plants perceive pathogens and induce robust transcriptional reprogramming to rapidly achieve immunity. The mechanisms of how immune-related genes are transcriptionally regulated remain largely unknown. Previously, the trihelix transcriptional factor ARABIDOPSIS SH4-RELATED 3 (ASR3) was shown to negatively regulate pattern-triggered immunity (PTI) in Arabidopsis thaliana. Here, we identified another trihelix family member ASR3-Interacting Transcriptional Factor 1 (AITF1) as an interacting protein of ASR3. ASR3-Interacting Transcriptional Factor 1 and ASR3 form heterogenous and homogenous dimers in planta. Both aitf1 and asr3 single mutants exhibited increased resistance against the bacterial pathogen Pseudomonas syringae, but the double mutant showed reduced resistance, suggesting AITF1 and ASR3 interdependently regulate immune gene expression and resistance. Overexpression of AITF1 triggered autoimmunity dependently on its DNA-binding ability and the presence of ASR3. Notably, autoimmunity caused by overexpression of AITF1 was dependent on a TIR-NBS-LRR (TNL) protein suppressor of AITF1-induced autoimmunity 1 (SAA1), as well as enhanced disease susceptibility 1 (EDS1), the central regulator of TNL signaling. ASR3-Interacting Transcriptional Factor 1 and ASR3 directly activated SAA1 expression through binding to the GT-boxes in SAA1 promoter. Collectively, our results revealed a mechanism of trihelix transcription factor complex in regulating immune gene expression, thereby modulating plant disease resistance and autoimmunity.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Meng Tang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Ying Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Mengling Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Lan Wei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Yang Lin
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Jiatao Xie
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Jiasen Cheng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Yanping Fu
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Daohong Jiang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Bo Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
| | - Xiao Yu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
- Hubei Hongshan Laboratory, Wuhan, Hubei, 430070, China
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Zhao D, Gao F, Guan P, Gao J, Guo Z, Guo J, Cui H, Li Y, Zhang G, Li Z, Guo L. Identification and analysis of differentially expressed trihelix genes in maize ( Zea mays) under abiotic stresses. PeerJ 2023; 11:e15312. [PMID: 37151290 PMCID: PMC10158769 DOI: 10.7717/peerj.15312] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 04/06/2023] [Indexed: 05/09/2023] Open
Abstract
Background Trihelix transcription factors play important roles in triggering plant growth and imparting tolerance against biotic and abiotic stresses. However, a systematical analysis of the trihelix transcription factor family under heat and drought stresses in maize has not been reported. Methods PlantTFDB and TBtools were employed to identify the trihelix domain-containing genes in the maize genome. The heat-regulated transcriptome data for maize were obtained from NCBI to screen differentially expressed ZmTHs genes through statistical analysis. The basic protein sequences, chromosomal localization, and subcellular localization were analyzed using Maize GDB, Expasy, SOMPA, TBtools, and Plant-mPLoc. The conserved motifs, evolutionary relationships, and cis-elements, were analyzed by MEME, MEGA7.0 and PlantCARE software, respectively. The tissue expression patterns of ZmTHs and their expression profiles under heat and drought stress were detected using quantitative real-time PCR (qRT-PCR). Results A total of 44 trihelix family members were discovered, and members were distributed over 10 chromosomes in the maize genome. A total of 11 genes were identified that were regulated by heat stress; these were unevenly distributed on chromosomes 1, 2, 4, 5, and 10. ZmTHs encoded a total of 16 proteins, all of which were located in the nucleus; however, ZmTH04.1 was also distributed in the chloroplast. The protein length varied from 206 to 725 amino acids; the molecular weight ranged from 22.63 to 76.40 kD; and the theoretical isoelectric point (pI) ranged from 5.24 to 11.2. The protein's secondary structures were mainly found to be random coils and α-helices, with fewer instances of elongation chains and β-rotations. Phylogenetic relationship analysis showed that these can be divided into five sub-groups. The conserved domain of ZmTHs was GT1 or MyB_DNA-Bind_4. The protein and gene structure of ZmTHs differed greatly among the subfamilies, while the structures within the subfamilies were similar. The promoter of ZmTHs contained abundant tissue-specific expression cis-acting elements and abiotic stress response elements. qRT-PCR analysis showed that ZmTHs expression levels were significantly different in different tissues. Furthermore, the expression of ZmTH08 was dramatically up-regulated by heat stress, while the expression of ZmTH03, ZmTH04, ZmTH05, ZmTH06, ZmTH07, ZmTH09, ZmTH10, and ZmTH11 were down-regulated by heat stress. Upon PEG-simulated drought stress, ZmTH06 was significantly up-regulated, while ZmTH01 and ZmTH07 were down-regulated. Conclusions We performed a genome-wide, systematic identification and analysis of differentially expressed trihelix genes under heat and drought stresses in maize.
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Affiliation(s)
- Dongbo Zhao
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Fengju Gao
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | | | - Jiansheng Gao
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Zhihui Guo
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Jianjun Guo
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Huini Cui
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Yongjun Li
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Guijun Zhang
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Zhao Li
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
| | - Lianghai Guo
- Dezhou Academy of Agricultural Science, Dezhou, Shandong, China
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11
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Conservation and Divergence of the Trihelix Genes in Brassica and Expression Profiles of BnaTH Genes in Brassica napus under Abiotic Stresses. Int J Mol Sci 2022; 23:ijms232415766. [PMID: 36555407 PMCID: PMC9779230 DOI: 10.3390/ijms232415766] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Trihelix (TH) proteins are a family of plant-specific transcription factors that play a role in light response and are extensively involved in plant growth and development, as well as in various stress responses. However, the function of TH genes in Brassica napus (B. napus) remains unclear, as does the evolution and differentiation pattern of TH genes in Brassica plants. Here, we identified a total of 455 TH genes in seven species, including six Brassica species and Arabidopsis, which were grouped into five clades, GT-1, GT-2, GTγ, SH4, and SIP1, each with 69, 142, 44, 55, and 145 members, respectively. The types and distributions of motifs of the TH proteins and the structures of the TH genes are conserved in the same subgroup, and some variations in certain amino acid residues occur in B. napus when inheriting motifs from Brassica rapa (B. rapa) and Brassica oleracea (B. oleracea). Collinearity analysis revealed that the massive expansion of TH genes in tetraploid species was attributed to the hetero-tetraploidization of diploid ancestors and gene duplication events within the tetraploid species. Comparative analysis of the membership numbers of five subgroups in different species revealed that the GT-2 and SIP1 genes underwent significant expansion during evolution, possibly to support the better adaptation of plants to their environments. The differential expression of the BnaTH genes under five stresses indicates that the BnaTH genes are involved in plant responses to stresses such as drought, cold, and heat. The presence of different stress-responsive cis-elements in the upstream promoter region of the genes indicated that BnaTH genes have the potential to cope with variable environments. Meanwhile, qRT-PCR analyses also confirmed that five TH genes respond to different abiotic stresses. Our results provide information and candidates for further studies on the role of TH genes in stress resistance of B. napus.
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12
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Li Y, Hu Z, Dong Y, Xie Z. Trihelix Transcriptional Factor GhGT26 of Cotton Enhances Salinity Tolerance in Arabidopsis. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11202694. [PMID: 36297717 PMCID: PMC9610538 DOI: 10.3390/plants11202694] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/29/2022] [Accepted: 10/02/2022] [Indexed: 05/24/2023]
Abstract
Cotton (Gossypium hirsutum L.), the most important textile crop worldwide, often encounters abiotic stress during its growing season and its productivity is significantly limited by adverse factors. Trihelix transcription factors (also known as GT factors) are important proteins involved in the morphological development and responses to abiotic stress in plants. However, their functions and molecular mechanisms in the cotton toward abiotic stress response remain unclear. In this study, a member (GhGT26) of the cotton Trihelix family was functionally characterized in the model plant Arabidopsis. This protein containing a SANT domain belongs to the GT-1 subgroup of trihelix proteins. GhGT26 was widely expressed in tissues (with the highest level in flower) and responded to high salt and ABA treatments at the transcriptional level. Using the Arabidopsis protoplast assay system, we found that the GhGT26 protein was located in the cell nuclei. The EMSA assay revealed that the GhGT26 protein could bind to the Site1-type GT cis elements (GT-3a) and MYB elements MRE3 and MRE4. The overexpression of GhGT26 improved plant tolerance to salt stress in transgenic Arabidopsis plants. Although ABA inhibits root elongation, the statistical analysis revealed that the root lengths of GhGT26-overexpressing Arabidopsis were the same as the wild plants after ABA treatment. Our results demonstrate that GhGT26 positively regulates salt stress via ABA-independent pathways. This evidence suggests that the GhGT26 may participate in the regulation of stress tolerance in cotton.
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Affiliation(s)
- Yue Li
- Xinjiang Production and Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Xinjiang Academy of Agricultural and Reclamation Science, 221 Wuyi Road, Shihezi 832000, China
- College of Life Science, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830001, China
| | - Ziyao Hu
- College of Life Science, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830001, China
| | - Yongmei Dong
- Xinjiang Production and Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Xinjiang Academy of Agricultural and Reclamation Science, 221 Wuyi Road, Shihezi 832000, China
| | - Zongming Xie
- Xinjiang Production and Construction Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization, Xinjiang Academy of Agricultural and Reclamation Science, 221 Wuyi Road, Shihezi 832000, China
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13
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Hui W, Zheng H, Fan J, Wang J, Saba T, Wang K, Wu J, Wu H, Zhong Y, Chen G, Gong W. Genome-wide characterization of the MBF1 gene family and its expression pattern in different tissues and stresses in Zanthoxylum armatum. BMC Genomics 2022; 23:652. [PMID: 36104767 PMCID: PMC9472409 DOI: 10.1186/s12864-022-08863-4] [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: 03/30/2022] [Accepted: 08/31/2022] [Indexed: 11/18/2022] Open
Abstract
Background Multiprotein bridging factor 1 (MBF1) is a crucial transcriptional coactivator in animals, plants, and some microorganisms, that plays a necessary role in growth development and stress tolerance. Zanthoxylum armatum is an important perennial plant for the condiments and pharmaceutical industries, whereas the potential information in the genes related to stress resistance remains poorly understood in Z. armatum. Results Herein, six representative species were selected for use in a genome-wide investigation of the MBF1 family, including Arabidopsis thaliana, Oryza sativa, Populus trichocarpa, Citrus sinensis, Ginkgo biloba, and Z. armatum. The results showed that the MBF1 genes could be divided into two groups: Group I contained the MBF1a and MBF1b subfamilies, and group II was independent of the MBF1c subfamily.. Most species have at least two different MBF1 genes, and MBF1c is usually an essential member. The three ZaMBF1 genes were respectively located on ZaChr26, ZaChr32, and ZaChr4 of Zanthoxylum chromosomes. The collinearity were occurred between three ZaMBF1 genes, and ZaMBF1c showed the collinearity between Z. armatum and both P. trichocarpa and C. sinensis. Moreover, many cis-elements associated with abiotic stress and phytohormone pathways were detected in the promoter regions of MBF1 of six representative species. The ERF binding sites were the most abundant targets in the sequences of the ZaMBF1 family, and some transcription factor sites related to floral differentiation were also identified in ZaMBF1c, such as MADS, LFY, Dof, and AP2. ZaMBF1a was observed to be very highly expressed in 25 different samples except in the seeds, and ZaMBF1c may be associated with the male and female floral initiation processes. In addition, expression in all the ZaMBF1 genes could be significantly induced by water-logging, cold stress, ethephon, methyl jasmonate, and salicylic acid treatments, especially in ZaMBF1c. Conclusion The present study carried out a comprehensive bioinformatic investigation related to the MBF1 family in six representative species, and the responsiveness of ZaMBF1 genes to various abiotic stresses and phytohormone inductions was also revealed. This work not only lays a solid foundation to uncover the biological roles of the ZaMBF1 family in Z. armatum, but also provides some broad references for conducting the MBF1 research in other plants. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08863-4.
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14
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Li K, Fan Y, Zhou G, Liu X, Chen S, Chang X, Wu W, Duan L, Yao M, Wang R, Wang Z, Yang M, Ding Y, Ren M, Fan Y, Zhang L. Genome-wide identification, phylogenetic analysis, and expression profiles of trihelix transcription factor family genes in quinoa (Chenopodium quinoa Willd.) under abiotic stress conditions. BMC Genomics 2022; 23:499. [PMID: 35810309 PMCID: PMC9271251 DOI: 10.1186/s12864-022-08726-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/29/2022] [Indexed: 11/10/2022] Open
Abstract
Background The trihelix family of transcription factors plays essential roles in the growth, development, and abiotic stress response of plants. Although several studies have been performed on the trihelix gene family in several dicots and monocots, this gene family is yet to be studied in Chenopodium quinoa (quinoa). Results In this study, 47 C. quinoa trihelix (CqTH) genes were in the quinoa genome. Phylogenetic analysis of the CqTH and trihelix genes from Arabidopsis thaliana and Beta vulgaris revealed that the genes were clustered into five subfamilies: SIP1, GTγ, GT1, GT2, and SH4. Additionally, synteny analysis revealed that the CqTH genes were located on 17 chromosomes, with the exception of chromosomes 8 and 11, and 23 pairs of segmental duplication genes were detected. Furthermore, expression patterns of 10 CqTH genes in different plant tissues and at different developmental stages under abiotic stress and phytohormone treatment were examined. Among the 10 genes, CqTH02, CqTH25, CqTH18, CqTH19, CqTH25, CqTH31, and CqTH36, were highly expressed in unripe achenes 21 d after flowering and in mature achenes compared with other plant tissues. Notably, the 10 CqTH genes were upregulated in UV-treated leaves, whereas CqTH36 was consistently upregulated in the leaves under all abiotic stress conditions. Conclusions The findings of this study suggest that gene duplication could be a major driver of trihelix gene evolution in quinoa. These findings could serve as a basis for future studies on the roles of CqTH transcription factors and present potential genetic markers for breeding stress-resistant and high-yielding quinoa varieties. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08726-y.
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Affiliation(s)
- Kuiyin Li
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China.,College of Agriculture, Anshun University, Anshun, 561000, P.R. China
| | - Yue Fan
- College of Food Science and Engineering, Xinjiang Institute of Technology, Aksu, 843100, P.R. China
| | - Guangyi Zhou
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Xiaojuan Liu
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Songshu Chen
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Xiangcai Chang
- College of Agriculture, Anshun University, Anshun, 561000, P.R. China
| | - Wenqiang Wu
- Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Huaxi District, Guiyang City, Guizhou Province, 550006, P.R. China
| | - Lili Duan
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Maoxing Yao
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Rui Wang
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Zili Wang
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Mingfang Yang
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China
| | - Yanqing Ding
- Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Huaxi District, Guiyang City, Guizhou Province, 550006, P.R. China
| | - Mingjian Ren
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China.,Guizhou Branch of National Wheat Improvement Center of Guizhou University, Guiyang, 550025, P.R. China
| | - Yu Fan
- College of Agriculture, Guizhou University, Huaxi District, Guiyang City, Guizhou Province, 550025, P.R. China.
| | - Liyi Zhang
- Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Huaxi District, Guiyang City, Guizhou Province, 550006, P.R. China.
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15
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Zhu M, Bin J, Ding H, Pan D, Tian Q, Yang X, Wang L, Yue Y. Insights into the trihelix transcription factor responses to salt and other stresses in Osmanthus fragrans. BMC Genomics 2022; 23:334. [PMID: 35488201 PMCID: PMC9055724 DOI: 10.1186/s12864-022-08569-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/18/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osmanthus fragrans is an evergreen plant with high ornamental and economic values. However, they are easily injured by salt stress, which severely limits their use in high salinity areas. The trihelix transcription factor (TF) family, as one of the earliest discovered TF families in plants, plays an essential part in responses to different abiotic stresses, and it has potential functions in improving the salt-tolerance capability of O. fragrans. RESULTS In this study, 56 trihelix genes (OfGTs) were first identified in O. fragrans and then divided into five subfamilies in accordance with a phylogenetic tree analysis. The OfGTs were found to be located randomly on the 20 O. fragrans chromosomes, and an analysis of gene replication events indicated that the OfGT gene family underwent strong purification selection during the evolutionary process. The analysis of conserved motifs and gene structures implied that the OfGT members in the same subfamily have similar conserved motifs and gene structures. A promoter cis-elements analysis showed that all the OfGT genes contained multiple abiotic and hormonal stress-related cis-elements. The RNA-seq data suggested that the OfGTs have specific expression patterns in different tissues, and some were induced by salt stress. The qRT-PCR analysis of 12 selected OfGTs confirmed that OfGT1/3/21/33/42/45/46/52 were induced, with OfGT3/42/46 being the most highly expressed. In addition, OfGT42/OfGT46 had a co-expression pattern under salt-stress conditions. OfGT3/42/46 were mainly localized in the nuclei and exhibited no transcriptional activities based on the analysis of the subcellular localization and transcriptional activity assay. Furthermore, the expression levels of most of the selected OfGTs were induced by multiple abiotic and hormonal stresses, and the expression patterns of some OfGTs were also highly correlated with gibberellic acid and methyl jasmonate levels. Remarkably, the transient transformation results showed lower MDA content and increased expression of ROS-related genes NbAPX in transgenic plants, which implying OfGT3/42/46 may improve the salt tolerance of tobacco. CONCLUSIONS The results implied that the OfGT genes were related to abiotic and hormonal stress responses in O. fragrans, and that the OfGT3/42/46 genes in particular might play crucial roles in responses to salt stress. This study made a comprehensive summary of the OfGT gene family, including functions and co-expression patterns in response to salt and other stresses, as well as an evolutionary perspective. Consequently, it lays a foundation for further functional characterizations of these genes.
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Affiliation(s)
- Meilin Zhu
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Jing Bin
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Huifen Ding
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Duo Pan
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Qingyin Tian
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Xiulian Yang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Lianggui Wang
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China. .,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Yuanzheng Yue
- Key Laboratory of Landscape Architecture, Jiangsu Province, College of Landscape Architecture, Nanjing Forestry University, Nanjing, 210037, People's Republic of China. .,Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
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Zhang Q, Zhong T, E L, Xu M, Dai W, Sun S, Ye J. GT Factor ZmGT-3b Is Associated With Regulation of Photosynthesis and Defense Response to Fusarium graminearum Infection in Maize Seedling. FRONTIERS IN PLANT SCIENCE 2021; 12:724133. [PMID: 34868109 PMCID: PMC8638620 DOI: 10.3389/fpls.2021.724133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 10/04/2021] [Indexed: 05/24/2023]
Abstract
It is of critical importance for plants to correctly and efficiently allocate their resources between growth and defense to optimize fitness. Transcription factors (TFs) play crucial roles in the regulation of plant growth and defense response. Trihelix TFs display multifaceted functions in plant growth, development, and responses to various biotic and abiotic stresses. In our previous investigation of maize stalk rot disease resistance mechanism, we found a trihelix TF gene, ZmGT-3b, which is primed for its response to Fusarium graminearum challenge by implementing a rapid and significant reduction of its expression to suppress seedling growth and enhance disease resistance. The disease resistance to F. graminearum was consistently increased and drought tolerance was improved, while seedling growth was suppressed and photosynthesis activity was significantly reduced in the ZmGT-3b knockdown seedlings. Thus, the seedlings finally led to show a kind of growth-defense trade-off phenotype. Moreover, photosynthesis-related genes were specifically downregulated, especially ZmHY5, which encodes a conserved central regulator of seedling development and light responses; ZmGT-3b was confirmed to be a novel interacting partner of ZmHY5 in yeast and in planta. Constitutive defense responses were synchronically activated in the ZmGT-3b knockdown seedlings as many defense-related genes were significantly upregulated, and the contents of major cell wall components, such as lignin, were increased in the ZmGT-3b knockdown seedlings. These suggest that ZmGT-3b is involved in the coordination of the metabolism during growth-defense trade-off by optimizing the temporal and spatial expression of photosynthesis- and defense-related genes.
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Li K, Duan L, Zhang Y, Shi M, Chen S, Yang M, Ding Y, Peng Y, Dong Y, Yang H, Li Z, Zhang L, Fan Y, Ren M. Genome-wide identification and expression profile analysis of trihelix transcription factor family genes in response to abiotic stress in sorghum [Sorghum bicolor (L.) Moench]. BMC Genomics 2021; 22:738. [PMID: 34649496 PMCID: PMC8515681 DOI: 10.1186/s12864-021-08000-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 09/08/2021] [Indexed: 12/04/2022] Open
Abstract
Background Transcription factors, including trihelix transcription factors, play vital roles in various growth and developmental processes and in abiotic stress responses in plants. The trihelix gene has been systematically studied in some dicots and monocots, including Arabidopsis, tomato, chrysanthemum, soybean, wheat, corn, rice, and buckwheat. However, there are no related studies on sorghum. Results In this study, a total of 40 sorghum trihelix (SbTH) genes were identified based on the sorghum genome, among which 34 were located in the nucleus, 5 in the chloroplast, 1 (SbTH38) in the cytoplasm, and 1 (SbTH23) in the extracellular membrane. Phylogenetic analysis of the SbTH genes and Arabidopsis and rice trihelix genes indicated that the genes were clustered into seven subfamilies: SIP1, GTγ, GT1, GT2, SH4, GTSb8, and orphan genes. The SbTH genes were located in nine chromosomes and none on chromosome 10. One pair of tandem duplication gene and seven pairs of segmental duplication genes were identified in the SbTH gene family. By qPCR, the expression of 14 SbTH members in different plant tissues and in plants exposed to six abiotic stresses at the seedling stage were quantified. Except for the leaves in which the genes were upregulated after only 2 h exposure to high temperature, the 12 SbTH genes were significantly upregulated in the stems of sorghum seedlings after 24 h under the other abiotic stress conditions. Among the selected genes, SbTH10/37/39 were significantly upregulated, whereas SbTH32 was significantly downregulated under different stress conditions. Conclusions In this study, we identified 40 trihelix genes in sorghum and found that gene duplication was the main force driving trihelix gene evolution in sorghum. The findings of our study serve as a basis for further investigation of the functions of SbTH genes and providing candidate genes for stress-resistant sorghum breeding programmes and increasing sorghum yield. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-08000-7.
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Affiliation(s)
- Kuiyin Li
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China.,College of Agriculture, Anshun University, Anshun, 561000, People's Republic of China
| | - Lili Duan
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Yubo Zhang
- College of Agriculture, Anshun University, Anshun, 561000, People's Republic of China
| | - Miaoxiao Shi
- College of Agriculture, Anshun University, Anshun, 561000, People's Republic of China
| | - Songshu Chen
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Mingfang Yang
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Yanqing Ding
- Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guiyang, 550006, Guizhou, People's Republic of China
| | - Yashu Peng
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Yabing Dong
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Hao Yang
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Zhenhua Li
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China.,Guizhou Branch of National Wheat Improvement Center of Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, People's Republic of China
| | - Liyi Zhang
- Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guiyang, 550006, Guizhou, People's Republic of China
| | - Yu Fan
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Mingjian Ren
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China. .,Guizhou Branch of National Wheat Improvement Center of Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, People's Republic of China.
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18
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Liu X, Wu D, Shan T, Xu S, Qin R, Li H, Negm M, Wu D, Li J. The trihelix transcription factor OsGTγ-2 is involved adaption to salt stress in rice. PLANT MOLECULAR BIOLOGY 2020; 103:545-560. [PMID: 32504260 DOI: 10.1007/s11103-020-01010-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 05/01/2020] [Indexed: 05/21/2023]
Abstract
OsGTγ-2, a trihelix transcription factor, is a positive regulator of rice responses to salt stress by regulating the expression of ion transporters. Salinity stress seriously restricts rice growth and yield. Trihelix transcription factors (GT factors) specifically bind to GT elements and play a diverse role in plant morphological development and responses to abiotic stresses. In our previous study, we found that the GT-1 element (GAAAAA) is a key element in the salinity-induced OsRAV2 promoter. Here, we identified a rice OsGTγ family member, OsGTγ-2, which directly interacted with the GT-1 element in the OsRAV2 promoter. OsGTγ-2 specifically targeted the nucleus, was mainly expressed in roots, sheathes, stems and seeds, and was induced by salinity, osmotic and oxidative stresses and abscisic acid (ABA). The seed germination rate, seedling growth and survival rate under salinity stress was improved in OsGTγ-2 overexpressing lines (PZmUbi::OsGTγ-2). In contrast, CRISPR/Cas9-mediated OsGTγ-2 knockout lines (osgtγ-2) showed salt-hypersensitive phenotypes. In response to salt stress, different Na+ and K+ acclamation patterns were observed in PZmUbi::OsGTγ-2 lines and osgtγ-2 plants were observed. The molecular mechanism of OsGTγ-2 in rice salt adaptation was also investigated. Several major genes responsible for ion transporting, such as the OsHKT2; 1, OsHKT1; 3 and OsNHX1 were transcriptionally regulated by OsGTγ-2. A subsequent yeast one-hybrid assay and EMSA indicated that OsGTγ-2 directly interacted with the promoters of OsHKT2; 1, OsNHX1 and OsHKT1; 3. Taken together, these results suggest that OsGTγ-2 is an important positive regulator involved in rice responses to salt stress and suggest a potential role for OsGTγ-2 in regulating salinity adaptation in rice.
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Affiliation(s)
- Xiaoshuang Liu
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
- Key Laboratory of Rice Genetics & Breeding of Anhui Province, Institute of Rice Research, Anhui Academy of Agricultural Science, Hefei, 230031, China
| | - Dechuan Wu
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Tiaofeng Shan
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Shanbin Xu
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Ruiying Qin
- Key Laboratory of Rice Genetics & Breeding of Anhui Province, Institute of Rice Research, Anhui Academy of Agricultural Science, Hefei, 230031, China
| | - Hao Li
- Key Laboratory of Rice Genetics & Breeding of Anhui Province, Institute of Rice Research, Anhui Academy of Agricultural Science, Hefei, 230031, China
| | - Mahrous Negm
- Rice Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
| | - Dexiang Wu
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China.
| | - Juan Li
- Key Laboratory of Rice Genetics & Breeding of Anhui Province, Institute of Rice Research, Anhui Academy of Agricultural Science, Hefei, 230031, China.
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19
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Liu W, Zhang Y, Li W, Lin Y, Wang C, Xu R, Zhang L. Genome-wide characterization and expression analysis of soybean trihelix gene family. PeerJ 2020; 8:e8753. [PMID: 32206450 PMCID: PMC7075366 DOI: 10.7717/peerj.8753] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 02/14/2020] [Indexed: 01/10/2023] Open
Abstract
Trihelix transcription factors play multiple roles in plant growth, development and various stress responses. In this study, we identified 71 trihelix family genes in the soybean genome. These trihelix genes were located at 19 out of 20 soybean chromosomes unevenly and were classified into six distinct subfamilies: GT-1, GT-2, GTγ, SIP1, SH4 and GTδ. The gene structure and conserved functional domain of these trihelix genes were similar in the same subfamily but diverged between different subfamilies. Thirteen segmental duplicated gene pairs were identified and all of them experienced a strong purifying selective pressure during evolution. Various stress-responsive cis-elements presented in the promoters of soybean trihelix genes, suggesting that the trihelix genes might respond to the environmental stresses in soybean. The expression analysis suggests that trihelix genes are involved in diverse functions during soybean development, flood or salinity tolerance, and plant immunity. Our results provide genomic information of the soybean trihelix genes and a basis for further characterizing their roles in response to environmental stresses.
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Affiliation(s)
- Wei Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.,Shandong Engineering Laboratory of Featured Crops, Jinan, China
| | - Yanwei Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.,Shandong Engineering Laboratory of Featured Crops, Jinan, China
| | - Wei Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.,Shandong Engineering Laboratory of Featured Crops, Jinan, China
| | - Yanhui Lin
- Institute of Food Crops, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Caijie Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.,Shandong Engineering Laboratory of Featured Crops, Jinan, China
| | - Ran Xu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.,Shandong Engineering Laboratory of Featured Crops, Jinan, China
| | - Lifeng Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.,Shandong Engineering Laboratory of Featured Crops, Jinan, China
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20
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Magwanga RO, Kirungu JN, Lu P, Yang X, Dong Q, Cai X, Xu Y, Wang X, Zhou Z, Hou Y, Nyunja R, Agong SG, Hua J, Zhang B, Wang K, Liu F. Genome wide identification of the trihelix transcription factors and overexpression of Gh_A05G2067 (GT-2), a novel gene contributing to increased drought and salt stresses tolerance in cotton. PHYSIOLOGIA PLANTARUM 2019; 167:447-464. [PMID: 30629305 PMCID: PMC6850275 DOI: 10.1111/ppl.12920] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/03/2019] [Accepted: 01/06/2019] [Indexed: 05/20/2023]
Abstract
We identified 102, 51 and 51 proteins encoded by the trihelix genes in Gossypium hirsutum, Gossypium arboreum and Gossypium raimondii, respectively. RNA sequence data and real-time quantitative polymerase chain reaction analysis showed that Gh_A05G2067 (GT-2) was highly upregulated under drought and salt stress conditions. Transient expression of GT-2-green fluorescent protein fusion protein in protoplast showed that GT-2 was localized in the nucleus. The overexpression of GT-2 conferred an enhanced drought tolerance to cotton, with lower malondialdehyde, hydrogen peroxide contents and higher reactive oxygen scavenging enzyme activities. Moreover, chlorophyll content, relative leaf water content (RLWC), excised leaf water loss (ELWL) and cell membrane stability (CMS) were relatively stable in the GT-2-overexpressed lines compared to wild-type (WT). Similarly, stress-responsive genes RD29A, SOS1, ABF4 and CBL1 were highly upregulated in the GT-2-overexpressed lines but were significantly downregulated in WT. In addition, the GT-2-silenced cotton plants exhibited a high level of oxidation injury, due to high levels of oxidant enzymes, in addition to negative effects on CMS, ELWL, RLWC and chlorophyll content. These results mark the foundation for future exploration of the trihelix genes in cotton, with an aim of developing more resilient, versatile and highly tolerant cotton genotypes.
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Affiliation(s)
- Richard O. Magwanga
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
- Jaramogi Oginga OdingaUniversity of Science and TechnologySchool of Biological and Physical Sciences (SBPS), P.O Box 210‐40601, BondoKenya
| | - Joy N. Kirungu
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Pu Lu
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Xiu Yang
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Qi Dong
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Xiaoyan Cai
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Yanchao Xu
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Xingxing Wang
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Zhongli Zhou
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Yuqing Hou
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Regina Nyunja
- Jaramogi Oginga OdingaUniversity of Science and TechnologySchool of Biological and Physical Sciences (SBPS), P.O Box 210‐40601, BondoKenya
| | - Stephen G. Agong
- Jaramogi Oginga OdingaUniversity of Science and TechnologySchool of Biological and Physical Sciences (SBPS), P.O Box 210‐40601, BondoKenya
| | | | - Baohong Zhang
- North Carolina State UniversityRaleighNorth Carolina
| | - Kunbo Wang
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
| | - Fang Liu
- Institute of Cotton ResearchChinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton BiologyAnyang 455000China
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21
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Feng C, Song X, Tang H. Molecular cloning and expression analysis of GT-2-like genes in strawberry. 3 Biotech 2019; 9:105. [PMID: 30800616 PMCID: PMC6387661 DOI: 10.1007/s13205-019-1603-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 02/01/2019] [Indexed: 10/27/2022] Open
Abstract
GT-2 factors are the members of trihelix transcription factors (TFs) which can function in regulating plant development and responding to different abiotic stress. These proteins contain two structural domains composed by three tandem repeats helix-loop-helix-loop-helix. The strawberry (Fragaria × ananassa Duch.) is one of the most prevalent fruit crops due to its high economic and nutritional value. Nevertheless, strawberry production is limited by a range of biotic and abiotic stresses (such as drought, extreme temperature) that cause significant losses every year. Despite the potential roles of GT-2 transcription factor in plants, the functional and systematic analysis of the strawberry GT-2 subfamily has not been reported yet. In this research, we identified six GT-2 factors in 'Benihoppe' strawberry (Fragaria × ananassa) and all the FaGT-2-like proteins contain two trihelix domains. In addition, bioinformatics analysis showed that FaGT-2-like proteins might participate in transcription or transcription regulation. Compared with other reported GT-2 proteins, the similarity between FaGT-2-like and FvGT-2-like amino acid sequences was the highest, which can reach to 100%. Expression of these TFs indicated all of the FaGT-2-like genes could express in different tissues: root, stem, and leaf within distinct expression patterns. Furthermore, quantitative real-time PCR (qRT-PCR) analysis provided us with cues that all the FaGT-2-like genes were downregulated in response to various abiotic stress and hormone treatment. All the gene expressions can be inhibited by salt, drought, cold and ABA treatments, indicating that all the FaGT-2-like genes in 'Benihoppe' strawberry might act as the negative regulatory factors to respond to the abiotic stress. In summary, these results would lay a useful foundation for FaGT-2-like genes on functional study.
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Affiliation(s)
- Chen Feng
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan 611130 China
| | - Xia Song
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan 611130 China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan 611130 China
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22
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Li J, Zhang M, Sun J, Mao X, Wang J, Wang J, Liu H, Zheng H, Zhen Z, Zhao H, Zou D. Genome-Wide Characterization and Identification of Trihelix Transcription Factor and Expression Profiling in Response to Abiotic Stresses in Rice ( Oryza sativa L.). Int J Mol Sci 2019; 20:ijms20020251. [PMID: 30634597 PMCID: PMC6358761 DOI: 10.3390/ijms20020251] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 12/21/2018] [Accepted: 01/06/2019] [Indexed: 12/15/2022] Open
Abstract
Trihelix transcription factors play a role in plant growth, development and various stress responses. Here, we identified 41 trihelix family genes in the rice genome. These OsMSLs (Myb/SANT-LIKE) were located on twelve chromosomes. Synteny analysis indicated only six duplicated gene pairs in the rice trihelix family. Phylogenetic analysis of these OsMSLs and the trihelix genes from other species divided them into five clusters. OsMSLs from different groups significantly diverged in terms of gene structure and conserved functional domains. However, all OsMSLs contained the same five cis-elements. Some of these were responsive to light and dehydration stress. All OsMSLs expressed in four tissues and six developmental stages of rice but with different expression patterns. Quantitative real-time PCR analysis revealed that the OsMSLs responded to abiotic stresses including drought and high salt stress and stress signal molecule including ABA (abscisic acid), hydrogen peroxide. OsMSL39 were simultaneously expressed under all treatments, while OsMSL28 showed high expression under hydrogen peroxide, drought, and high salt treatments. Moreover, OsMSL16/27/33 displayed significant expression under ABA and drought treatments. Nevertheless, their responses were regulated by light. The expression levels of the 12 chosen OsMSLs differed between light and dark conditions. In conclusion, our results helped elucidate the biological functions of rice trihelix genes and provided a theoretical basis for further characterizing their biological roles in responding to abiotic stresses.
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Affiliation(s)
- Jiaming Li
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Minghui Zhang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China.
| | - Jian Sun
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Xinrui Mao
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Jing Wang
- Agriculture Technology and Popularization Center, Jixi 158100, China.
| | - Jingguo Wang
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Hualong Liu
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Hongliang Zheng
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Zhen Zhen
- College of Life Science, Northeast Agricultural University, Harbin 150030, China.
| | - Hongwei Zhao
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Detang Zou
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
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23
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Halpert M, Liveanu V, Glaser F, Schuster G. The Arabidopsis chloroplast RNase J displays both exo- and robust endonucleolytic activities. PLANT MOLECULAR BIOLOGY 2019; 99:17-29. [PMID: 30511330 DOI: 10.1007/s11103-018-0799-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/22/2018] [Indexed: 05/17/2023]
Abstract
Arabidopsis chloroplast RNase J displaces both exo- and endo-ribonucleolytic activities and contains a unique GT-1 DNA binding domain. Control of chloroplast gene expression is predominantly at the post-transcriptional level via the coordinated action of nuclear encoded ribonucleases and RNA-binding proteins. The 5' end maturation of mRNAs ascribed to the combined action of 5'→3' exoribonuclease and gene-specific RNA-binding proteins of the pentatricopeptide repeat family and others that impede the progression of this nuclease. The exo- and endoribonuclease RNase J, the only prokaryotic 5'→3' ribonuclease that is commonly present in bacteria, Archaea, as well as in the chloroplasts of higher plants and green algae, has been implicated in this process. Interestingly, in addition to the metalo-β-lactamase and β-CASP domains, RNase J of plants contains a conserved GT-1 domain that was previously characterized in transcription factors that function in light and stress responding genes. Here, we show that the Arabidopsis RNase J (AtRNase J), when analyzed in vitro with synthetic RNAs, displays both 5'→3' exonucleolytic activity, as well as robust endonucleolytic activity as compared to its bacterial homolog RNase J1 of Bacillus subtilis. AtRNase J degraded single-stranded RNA and DNA molecules but displays limited activity on double stranded RNA. The addition of three guanosines at the 5' end of the substrate significantly inhibited the degradation activity, indicating that the sequence and structure of the RNA substrate modulate the ribonucleolytic activity. Mutation of three amino acid in the catalytic reaction center significantly inhibited both the endonucleolytic and exonucleolytic degradation activities, while deletion of the carboxyl GT-1 domain that is unique to the plant RNAse J proteins, had a little or no significant effect. The robust endonucleolytic activity of AtRNase J suggests its involvement in the processing and degradation of RNA in the chloroplast.
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Affiliation(s)
- Michal Halpert
- Faculty of Biology, Technion-Israel Institute of Technology, 32000, Haifa, Israel
| | - Varda Liveanu
- Faculty of Biology, Technion-Israel Institute of Technology, 32000, Haifa, Israel
| | - Fabian Glaser
- Faculty of Biology, Technion-Israel Institute of Technology, 32000, Haifa, Israel
- Bioinformatics Knowledge Unit, The Lorry I. Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, 32000, Haifa, Israel
| | - Gadi Schuster
- Faculty of Biology, Technion-Israel Institute of Technology, 32000, Haifa, Israel.
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Yu C, Song L, Song J, Ouyang B, Guo L, Shang L, Wang T, Li H, Zhang J, Ye Z. ShCIGT, a Trihelix family gene, mediates cold and drought tolerance by interacting with SnRK1 in tomato. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 270:140-149. [PMID: 29576067 DOI: 10.1016/j.plantsci.2018.02.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 12/09/2017] [Accepted: 02/11/2018] [Indexed: 06/08/2023]
Abstract
Abiotic stress, such as drought and cold stress, have a major impact on plant growth and development. The trihelix transcription factor family plays important roles in plant morphological development and adaptation to abiotic stresses. In this study, we isolated a cold-induced gene named ShCIGT from the wild tomato species Solanum habrochaites and found that it contributes to abiotic stress tolerance. ShCIGT belongs to the GT-1 subfamily of the trihelix transcription factors. It was constitutively expressed in various tissues. Its expression was induced by multiple abiotic stresses and abscisic acid (ABA). Overexpression of ShCIGT in cultivated tomato enhanced cold and drought stress tolerance. In addition, the transgenic plants displayed a reduced sensitivity to ABA during post-germination growth. We found that ShCIGT interacts with SnRK1, an energy sensor in the metabolic signaling network, which controls plant metabolism, growth and development, and stress tolerance. Based on these data, we conclude ShCIGT may improve abiotic-stress tolerance in tomato by interacting with SnRK1.
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Affiliation(s)
- Chuying Yu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Lulu Song
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jianwen Song
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Bo Ouyang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Lijie Guo
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Lele Shang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Taotao Wang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Hanxia Li
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Junhong Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
| | - Zhibiao Ye
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
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25
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Xu H, Shi X, He L, Guo Y, Zang D, Li H, Zhang W, Wang Y. Arabidopsis thaliana Trihelix Transcription Factor AST1 Mediates Salt and Osmotic Stress Tolerance by Binding to a Novel AGAG-Box and Some GT Motifs. PLANT & CELL PHYSIOLOGY 2018; 59:946-965. [PMID: 29420810 DOI: 10.1093/pcp/pcy032] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 02/02/2018] [Indexed: 05/15/2023]
Abstract
Trihelix transcription factors are characterized by containing a conserved trihelix (helix-loop-helix-loop-helix) domain that binds to GT elements required for light response, and they play roles in light stress and in abiotic stress responses. However, only a few of them have been functionally characterized. In the present study, we characterized the function of AST1 (Arabidopsis SIP1 clade Trihelix1) in response to salt and osmotic stress. AST1 shows transcriptional activation activity, and its expression is induced by osmotic and salt stress. A conserved sequence highly present in the promoters of genes regulated by AST1 was identified, which was bound by AST1, and termed the AGAG-box with the sequence [A/G][G/A][A/T]GAGAG. Additionally, AST1 also binds to some GT motifs including the sequence of GGTAATT, TACAGT, GGTAAAT and GGTAAA, but failed in binding to the sequence of GTTAC and GGTTAA. Chromatin immunoprecipitation combined with quantitative real-time reverse transcription-PCR analysis suggested that AST1 binds to the AGAG-box and/or some GT motifs to regulate the expression of stress tolerance genes, resulting in reduced reactive oxygen species, Na+ accumulation, stomatal apertures, lipid peroxidation, cell death and water loss rate, and increased proline content and reactive oxygen species scavenging capability. These physiological changes affected by AST1 finally improve salt and osmotic tolerance.
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Affiliation(s)
- Hongyun Xu
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Xinxin Shi
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Lin He
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Yong Guo
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Dandan Zang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Hongyan Li
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Wenhui Zhang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
| | - Yucheng Wang
- State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), 26 Hexing Road, Harbin 150040, China
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Luo J, Tang S, Mei F, Peng X, Li J, Li X, Yan X, Zeng X, Liu F, Wu Y, Wu G. BnSIP1-1, a Trihelix Family Gene, Mediates Abiotic Stress Tolerance and ABA Signaling in Brassica napus. FRONTIERS IN PLANT SCIENCE 2017; 8:44. [PMID: 28184229 PMCID: PMC5266734 DOI: 10.3389/fpls.2017.00044] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/09/2017] [Indexed: 05/26/2023]
Abstract
The trihelix family genes have important functions in light-relevant and other developmental processes, but their roles in response to adverse environment are largely unclear. In this study, we identified a new gene, BnSIP1-1, which fell in the SIP1 (6b INTERACTING PROTEIN1) clade of the trihelix family with two trihelix DNA binding domains and a fourth amphipathic α-helix. BnSIP1-1 protein specifically targeted to the nucleus, and its expression can be induced by abscisic acid (ABA) and different stresses. Overexpression of BnSIP1-1 improved seed germination under osmotic pressure, salt, and ABA treatments. Moreover, BnSIP1-1 decreased the susceptibility of transgenic seedlings to osmotic pressure and ABA treatments, whereas there was no difference under salt stress between the transgenic and wild-type seedlings. ABA level in the transgenic seedlings leaves was higher than those in the control plants under normal condition. Under exogenous ABA treatment and mannitol stress, the accumulation of ABA in the transgenic plants was higher than that in the control plants; while under salt stress, the difference of ABA content before treatment was gradually smaller with the prolongation of salt treatment time, then after 24 h of treatment the ABA level was similar in transgenic and wild-type plants. The transcription levels of several general stress marker genes (BnRD29A, BnERD15, and BnLEA1) were higher in the transgenic plants than the wild-type plants, whereas salt-responsive genes (BnSOS1, BnNHX1, and BnHKT) were not significantly different or even reduced compared with the wild-type plants, which indicated that BnSIP1-1 specifically exerted different regulatory mechanisms on the osmotic- and salt-response pathways in seedling period. Overall, these findings suggested that BnSIP1-1 played roles in ABA synthesis and signaling, salt and osmotic stress response. To date, information about the involvement of the Brassica napus trihelix gene in abiotic response is scarce. Here, we firstly reported abiotic stress response and possible function mechanisms of a new trihelix gene in B. napus.
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Affiliation(s)
- Junling Luo
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Shaohua Tang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Fengling Mei
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Xiaojue Peng
- Key Laboratory of Molecular Biology and Gene Engineering of Jiangxi Province, College of Life Science, Nanchang UniversityNanchang, China
| | - Jun Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Xiaofei Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Xiaohong Yan
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Xinhua Zeng
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Fang Liu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Yuhua Wu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
| | - Gang Wu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of AgricultureWuhan, China
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Lehti-Shiu MD, Panchy N, Wang P, Uygun S, Shiu SH. Diversity, expansion, and evolutionary novelty of plant DNA-binding transcription factor families. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2016; 1860:3-20. [PMID: 27522016 DOI: 10.1016/j.bbagrm.2016.08.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/21/2016] [Accepted: 08/06/2016] [Indexed: 12/19/2022]
Abstract
Plant transcription factors (TFs) that interact with specific sequences via DNA-binding domains are crucial for regulating transcriptional initiation and are fundamental to plant development and environmental response. In addition, expansion of TF families has allowed functional divergence of duplicate copies, which has contributed to novel, and in some cases adaptive, traits in plants. Thus, TFs are central to the generation of the diverse plant species that we see today. Major plant agronomic traits, including those relevant to domestication, have also frequently arisen through changes in TF coding sequence or expression patterns. Here our goal is to provide an overview of plant TF evolution by first comparing the diversity of DNA-binding domains and the sizes of these domain families in plants and other eukaryotes. Because TFs are among the most highly expanded gene families in plants, the birth and death process of TFs as well as the mechanisms contributing to their retention are discussed. We also provide recent examples of how TFs have contributed to novel traits that are important in plant evolution and in agriculture.This article is part of a Special Issue entitled: Plant Gene Regulatory Mechanisms and Networks, edited by Dr. Erich Grotewold and Dr. Nathan Springer.
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Affiliation(s)
| | - Nicholas Panchy
- The Genetics Graduate Program, Michigan State University, East Lansing, MI 48824, USA
| | - Peipei Wang
- Department of Plant Biology, East Lansing, MI 48824, USA
| | - Sahra Uygun
- The Genetics Graduate Program, Michigan State University, East Lansing, MI 48824, USA
| | - Shin-Han Shiu
- Department of Plant Biology, East Lansing, MI 48824, USA; The Genetics Graduate Program, Michigan State University, East Lansing, MI 48824, USA.
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Zheng X, Liu H, Ji H, Wang Y, Dong B, Qiao Y, Liu M, Li X. The Wheat GT Factor TaGT2L1D Negatively Regulates Drought Tolerance and Plant Development. Sci Rep 2016; 6:27042. [PMID: 27245096 PMCID: PMC4887992 DOI: 10.1038/srep27042] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 05/13/2016] [Indexed: 01/18/2023] Open
Abstract
GT factors are trihelix transcription factors that specifically regulate plant development and stress responses. Recently, several GT factors have been characterized in different plant species; however, little is known about the role of GT factors in wheat. Here, we show that TaGT2L1A, TaGT2L1B, and TaGT2L1D are highly homologous in hexaploid wheat, and are localized to wheat chromosomes 2A, 2B, and 2D, respectively. These TaGT2L1 genes encode proteins containing two SANT domains and one central helix. All three homologs were ubiquitously expressed during wheat development and were responsive to osmotic stress. Functional analyses demonstrated that TaGT2L1D acts as a transcriptional repressor; it was able to suppress the expression of AtSDD1 in Arabidopsis by binding directly to the GT3 box in its promoter that negatively regulates drought tolerance. TaGT2L1D overexpression markedly increased the number of stomata and reduced drought tolerance in gtl1-3 plants. Notably, ectopic expression of TaGT2L1D also affected floral organ development and overall plant growth. These results demonstrate that TaGT2L1 is an ortholog of AtGTL1, and that it plays an evolutionarily conserved role in drought resistance by fine tuning stomatal density in wheat. Our data also highlight the role of TaGT2L1 in plant growth and development.
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Affiliation(s)
- Xin Zheng
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, Hebei 050021, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Haipei Liu
- School of Agriculture, Food and Wine, University of Adelaide, Waite Research Institute, Glen Osmond, SA 5064, Australia
| | - Hongtao Ji
- State Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Youning Wang
- State Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Baodi Dong
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, Hebei 050021, P. R. China
| | - Yunzhou Qiao
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, Hebei 050021, P. R. China
| | - Mengyu Liu
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, Hebei 050021, P. R. China
| | - Xia Li
- State Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
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29
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Genome-wide identification and expression profiling analysis of trihelix gene family in tomato. Biochem Biophys Res Commun 2015; 468:653-9. [DOI: 10.1016/j.bbrc.2015.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 11/03/2015] [Indexed: 12/23/2022]
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30
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García-Cano E, Magori S, Sun Q, Ding Z, Lazarowitz SG, Citovsky V. Interaction of Arabidopsis Trihelix-Domain Transcription Factors VFP3 and VFP5 with Agrobacterium Virulence Protein VirF. PLoS One 2015; 10:e0142128. [PMID: 26571494 PMCID: PMC4646629 DOI: 10.1371/journal.pone.0142128] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 10/16/2015] [Indexed: 02/01/2023] Open
Abstract
Agrobacterium is a natural genetic engineer of plants that exports several virulence proteins into host cells in order to take advantage of the cell machinery to facilitate transformation and support bacterial growth. One of these effectors is the F-box protein VirF, which presumably uses the host ubiquitin/proteasome system (UPS) to uncoat the packaging proteins from the invading bacterial T-DNA. By analogy to several other bacterial effectors, VirF most likely has several functions in the host cell and, therefore, several interacting partners among host proteins. Here we identify one such interactor, an Arabidopsis trihelix-domain transcription factor VFP3, and further show that its very close homolog VFP5 also interacted with VirF. Interestingly, interactions of VirF with either VFP3 or VFP5 did not activate the host UPS, suggesting that VirF might play other UPS-independent roles in bacterial infection. To better understand the potential scope of VFP3 function, we used RNAi to reduce expression of the VFP3 gene. Transcriptome profiling of these VFP3-silenced plants using high-throughput cDNA sequencing (RNA-seq) revealed that VFP3 substantially affected plant gene expression; specifically, 1,118 genes representing approximately 5% of all expressed genes were significantly either up- or down-regulated in the VFP3 RNAi line compared to wild-type Col-0 plants. Among the 507 up-regulated genes were genes implicated in the regulation of transcription, protein degradation, calcium signaling, and hormone metabolism, whereas the 611 down-regulated genes included those involved in redox regulation, light reactions of photosynthesis, and metabolism of lipids, amino acids, and cell wall. Overall, this pattern of changes in gene expression is characteristic of plants under stress. Thus, VFP3 likely plays an important role in controlling plant homeostasis.
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Affiliation(s)
- Elena García-Cano
- Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, New York, United States of America
| | - Shimpei Magori
- Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, New York, United States of America
| | - Qi Sun
- Computational Biology Service Unit, Cornell University, Ithaca, New York, United States of America
| | - Zehong Ding
- Computational Biology Service Unit, Cornell University, Ithaca, New York, United States of America
| | - Sondra G. Lazarowitz
- Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York, United States of America
| | - Vitaly Citovsky
- Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, New York, United States of America
- * E-mail:
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31
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Yang J, Lu C, Shen Q, Yan Y, Xu C, Song C. The complete chloroplast genome sequence of Fagopyrum cymosum. Mitochondrial DNA A DNA Mapp Seq Anal 2015; 27:2410-1. [PMID: 26119127 DOI: 10.3109/19401736.2015.1030619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Fagopyrum cymosum is a traditional medicinal plant. In this study, the complete chloroplast genome of Fagopyrum cymosum is presented. The total genome size is 160,546 bp in length, containing a pair of inverted repeats (IRs) of 32,598 bp, separated by large single copy (LSC) and small single copy (SSC) of 84,237 bp and 11,014 bp, respectively. Overall GC contents of the genome were 36.9%. The chloroplast genome harbors 126 annotated genes, including 91 protein coding genes, 29 tRNA genes, and six rRNA genes. Eighteen genes contain one or two introns. Phylogenetic analyses indicated a clear evolutionary relationship among species of Caryophyllales.
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Affiliation(s)
- Jun Yang
- a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China
| | - Chaolong Lu
- a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China .,b Maize Research Institute, Sichuan Agricultural University , Wenjiang , China
| | - Qi Shen
- a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China .,c Guizhou Rapeseed Institute, Guizhou Province of Academy of Agricultural Sciences , Guiyang , China , and
| | - Yuying Yan
- a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China .,d Research Center of Buckwheat Industry Technology, Guizhou Normal University , Guiyang , China
| | - Changjiang Xu
- a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China .,d Research Center of Buckwheat Industry Technology, Guizhou Normal University , Guiyang , China
| | - Chi Song
- a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China
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32
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Li B, Jiang S, Yu X, Cheng C, Chen S, Cheng Y, Yuan JS, Jiang D, He P, Shan L. Phosphorylation of trihelix transcriptional repressor ASR3 by MAP KINASE4 negatively regulates Arabidopsis immunity. THE PLANT CELL 2015; 27:839-56. [PMID: 25770109 PMCID: PMC4558661 DOI: 10.1105/tpc.114.134809] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 02/21/2015] [Indexed: 05/06/2023]
Abstract
Proper control of immune-related gene expression is crucial for the host to launch an effective defense response. Perception of microbe-associated molecular patterns (MAMPs) induces rapid and profound transcriptional reprogramming via unclear mechanisms. Here, we show that ASR3 (ARABIDOPSIS SH4-RELATED3) functions as a transcriptional repressor and plays a negative role in regulating pattern-triggered immunity (PTI) in Arabidopsis thaliana. ASR3 belongs to a plant-specific trihelix transcription factor family for which functional studies are lacking. MAMP treatments induce rapid phosphorylation of ASR3 at threonine 189 via MPK4, a mitogen-activated protein kinase that negatively regulates PTI responses downstream of multiple MAMP receptors. ASR3 possesses transcriptional repressor activity via its ERF-associated amphiphilic repression motifs and negatively regulates a large subset of flg22-induced genes. Phosphorylation of ASR3 by MPK4 enhances its DNA binding activity to suppress gene expression. Importantly, the asr3 mutant shows enhanced disease resistance to virulent bacterial pathogen infection, whereas transgenic plants overexpressing the wild-type or phospho-mimetic form of ASR3 exhibit compromised PTI responses. Our studies reveal a function of the trihelix transcription factors in plant innate immunity and provide evidence that ASR3 functions as a transcriptional repressor regulated by MAMP-activated MPK4 to fine-tune plant immune gene expression.
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Affiliation(s)
- Bo Li
- Department of Plant Pathology and Microbiology, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843 Provincial Key Laboratory of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R. China
| | - Shan Jiang
- Department of Plant Pathology and Microbiology, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Xiao Yu
- Department of Plant Pathology and Microbiology, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Cheng Cheng
- Department of Biochemistry and Biophysics, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Sixue Chen
- Department of Biology, Genetics Institute, Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, Florida 32610
| | - Yanbing Cheng
- Department of Plant Pathology and Microbiology, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Joshua S Yuan
- Department of Plant Pathology and Microbiology, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Daohong Jiang
- Provincial Key Laboratory of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, P.R. China
| | - Ping He
- Department of Biochemistry and Biophysics, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Libo Shan
- Department of Plant Pathology and Microbiology, Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
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33
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Abstract
Oxygen is an indispensable substrate for many biochemical reactions in plants, including energy metabolism (respiration). Despite its importance, plants lack an active transport mechanism to distribute oxygen to all cells. Therefore, steep oxygen gradients occur within most plant tissues, which can be exacerbated by environmental perturbations that further reduce oxygen availability. Plants possess various responses to cope with spatial and temporal variations in oxygen availability, many of which involve metabolic adaptations to deal with energy crises induced by low oxygen. Responses are induced gradually when oxygen concentrations decrease and are rapidly reversed upon reoxygenation. A direct effect of the oxygen level can be observed in the stability, and thus activity, of various transcription factors that control the expression of hypoxia-induced genes. Additional signaling pathways are activated by the impact of oxygen deficiency on mitochondrial and chloroplast functioning. Here, we describe the molecular components of the oxygen-sensing pathway.
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Affiliation(s)
- Joost T van Dongen
- Institute of Biology I, Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany;
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