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Xu M, Li L, Yan J, Li D, Liu Y, Zhang W, Liu Y. Blocking miR396 activity by overexpression MIM396 improved switchgrass tiller number and biomass yield. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:69. [PMID: 38802880 PMCID: PMC11131217 DOI: 10.1186/s13068-024-02514-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND MicroRNA396 (miR396) plays an important role in the regulation of plant growth and development by repressing the expression level of its target growth-regulating factor (GRF) family genes. In our previous study, we found that overexpression of miR396 negatively regulated both tillering and biomass yield in switchgrass (Panicum virgatum L.). We, therefore, speculated that blocking the expression of miR396 could enhance switchgrass tillering and biomass yield. Here, we produced transgenic switchgrass plants overexpressing a target mimicry form of miR396 (MIM396) in wild type (WT) and Os-MIR319b overexpressing switchgrass plant (with higher enzymatic hydrolysis efficiency, but reduced tillering), in which the expression of miR396 was blocked. The phenotype and biological yields of these plants were analyzed. RESULTS Blocking miR396 to improve its target PvGRFs expression in switchgrass improved the tiller number and dry weight of transgenic plants. Further morphological analysis revealed that MIM396 plants increased the number of aerial branches and basal tillers compared to those of wild-type plants. The enzymatic efficiency of MIM396 plants was reduced; however, the total sugar production per plant was still significantly higher than that of wild-type plants due to the increase in biomass. In addition, blocking miR396 in a transgenic switchgrass plant overexpressing Os-MIR319b (TG21-Ms) significantly increased the PvGRF1/3/5 expression level and tiller number and biomass yield. The miR156-target gene PvSPL4, playing a negative role in aerial and basal buds outgrowth, showed significant downregulated in MIM396 and TG21-Ms. Those results indicate that miR396-PvGRFs, through disrupting the PvSPL4 expression, are involved in miR319-PvPCFs in regulating tiller number, at least partly. CONCLUSIONS MIM396 could be used as a molecular tool to improving tiller number and biomass yield in switchgrass wild type and miR319b transgenic plants. This finding may be applied to other graminaceous plants to regulate plant biological yield.
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Affiliation(s)
- Mingzhi Xu
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Lin Li
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jianping Yan
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Dayong Li
- National Engineering Research Center for Vegetables, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing, 100097, People's Republic of China
| | - Yaling Liu
- National Center of Pratacultural Technology Innovation (Under Preparation), Hohhot, 010010, China
| | - Wanjun Zhang
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yanrong Liu
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China.
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Han X, Tang S, Ma X, Liu W, Yang R, Zhang S, Wang N, Song X, Fu C, Yang R, Cao X. Blocking miR528 function promotes tillering and regrowth in switchgrass. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:712-721. [PMID: 37929781 PMCID: PMC10893936 DOI: 10.1111/pbi.14218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/28/2023] [Accepted: 10/17/2023] [Indexed: 11/07/2023]
Abstract
MiRNAs have been reported to be the key regulators involving a wide range of biological processes in diverse plant species, but their functions in switchgrass, an important biofuel and forage crop, are largely unknown. Here, we reported the novel function of miR528, which has expanded to four copies in switchgrass, in controlling biomass trait of tillering number and regrowth rate after mowing. Blocking miR528 activity by expressing short tandem target mimic (STTM) increased tiller number and regrowth rate after mowing. The quadruple pvmir528 mutant lines derived from genome editing also showed such improved traits. Degradome and RNA-seq analysis, combined with in situ hybridization assay revealed that up-regulation of two miR528 targets coding for Cu/Zn-SOD enzymes, might be responsible for the improved traits of tillering and regrowth in pvmir528 mutant. Additionally, natural variations in the miR528-SOD interaction exist in C3 and C4 monocot species, implying the distinct regulatory strength of the miR528-SOD module during monocot evolution. Overall, our data illuminated a novel role of miR528 in controlling biomass traits and provided a new target for genetic manipulation-mediated crop improvement.
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Affiliation(s)
- Xiangyan Han
- Department of Plant Biology and Ecology, Tianjin Key Laboratory of Protein Sciences, College of Life SciencesNankai UniversityTianjinChina
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Shanjie Tang
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
- College of Life SciencesUniversity of the Chinese Academy of SciencesBeijingChina
| | - Xuan Ma
- College of Life Sciences, Tianjin Key Laboratory of Animal and Plant ResistanceTianjin Normal UniversityTianjinChina
| | - Wenwen Liu
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoChina
- Shandong Energy InstituteQingdaoChina
- Qingdao New Energy Shandong LaboratoryQingdaoChina
| | - Ruijuan Yang
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoChina
- Shandong Energy InstituteQingdaoChina
- Qingdao New Energy Shandong LaboratoryQingdaoChina
| | - Shuaibin Zhang
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Ningning Wang
- Department of Plant Biology and Ecology, Tianjin Key Laboratory of Protein Sciences, College of Life SciencesNankai UniversityTianjinChina
| | - Xianwei Song
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Chunxiang Fu
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoChina
- Shandong Energy InstituteQingdaoChina
- Qingdao New Energy Shandong LaboratoryQingdaoChina
| | - Rongxin Yang
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life ScienceNanchang UniversityJiangxiChina
| | - Xiaofeng Cao
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
- College of Life SciencesUniversity of the Chinese Academy of SciencesBeijingChina
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Chen C, Zhang Y, Chen Y, Chen H, Gong R. Sweet cherry TCP gene family analysis reveals potential functions of PavTCP1, PavTCP2 and PavTCP3 in fruit light responses. BMC Genomics 2024; 25:3. [PMID: 38166656 PMCID: PMC10759647 DOI: 10.1186/s12864-023-09923-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND TCP proteins are plant specific transcription factors that play important roles in plant growth and development. Despite the known significance of these transcription factors in general plant development, their specific role in fruit growth remains largely uncharted. Therefore, this study explores the potential role of TCP transcription factors in the growth and development of sweet cherry fruits. RESULTS Thirteen members of the PavTCP family were identified within the sweet cherry plant, with two, PavTCP1 and PavTCP4, found to contain potential target sites for Pav-miR159, Pav-miR139a, and Pav-miR139b-3p. Analyses of cis-acting elements and Arabidopsis homology prediction analyses that the PavTCP family comprises many light-responsive elements. Homologs of PavTCP1 and PavTCP3 in Arabidopsis TCP proteins were found to be crucial to light responses. Shading experiments showed distinct correlation patterns between PavTCP1, 2, and 3 and total anthocyanins, soluble sugars, and soluble solids in sweet cherry fruits. These observations suggest that these genes may contribute significantly to sweet cherry light responses. In particular, PavTCP1 could play a key role, potentially mediated through Pav-miR159, Pav-miR139a, and Pav-miR139b-3p. CONCLUSION This study is the first to unveil the potential function of TCP transcription factors in the light responses of sweet cherry fruits, paving the way for future investigations into the role of this transcription factor family in plant fruit development.
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Affiliation(s)
- Chaoqun Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, 6111130, China
| | - Yao Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, 6111130, China
| | - Yuanfei Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, 6111130, China
| | - Hongxu Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, 6111130, China
| | - Ronggao Gong
- College of Horticulture, Sichuan Agricultural University, Chengdu, 6111130, China.
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Raza A, Charagh S, Karikari B, Sharif R, Yadav V, Mubarik MS, Habib M, Zhuang Y, Zhang C, Chen H, Varshney RK, Zhuang W. miRNAs for crop improvement. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107857. [PMID: 37437345 DOI: 10.1016/j.plaphy.2023.107857] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/14/2023]
Abstract
Climate change significantly impacts crop production by inducing several abiotic and biotic stresses. The increasing world population, and their food and industrial demands require focused efforts to improve crop plants to ensure sustainable food production. Among various modern biotechnological tools, microRNAs (miRNAs) are one of the fascinating tools available for crop improvement. miRNAs belong to a class of small non-coding RNAs playing crucial roles in numerous biological processes. miRNAs regulate gene expression by post-transcriptional target mRNA degradation or by translation repression. Plant miRNAs have essential roles in plant development and various biotic and abiotic stress tolerance. In this review, we provide propelling evidence from previous studies conducted around miRNAs and provide a one-stop review of progress made for breeding stress-smart future crop plants. Specifically, we provide a summary of reported miRNAs and their target genes for improvement of plant growth and development, and abiotic and biotic stress tolerance. We also highlight miRNA-mediated engineering for crop improvement and sequence-based technologies available for the identification of miRNAs associated with stress tolerance and plant developmental events.
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Affiliation(s)
- Ali Raza
- Center of Legume Crop Genetics and Systems Biology, Oil Crops Research Institute, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 35002, China
| | - Sidra Charagh
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, China
| | - Benjamin Karikari
- Department of Agricultural Biotechnology, Faculty of Agriculture, Food and Consumer Sciences, University for Development Studies, Tamale, Ghana
| | - Rahat Sharif
- Department of Horticulture, College of Horticulture and Landscape Architecture, Yangzhou University, 48 Wenhui East Road, Yangzhou, Jiangsu 225009, China
| | - Vivek Yadav
- College of Horticulture, Northwest Agriculture and Forestry University, Yangling, Shanxi, 712100, China
| | | | - Madiha Habib
- National Institute for Genomics and Advanced Biotechnology (NIGAB), National Agricultural Research Centre (NARC), Park Rd., Islamabad 45500, Pakistan
| | - Yuhui Zhuang
- College of Life Science, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Chong Zhang
- Center of Legume Crop Genetics and Systems Biology, Oil Crops Research Institute, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 35002, China
| | - Hua Chen
- Center of Legume Crop Genetics and Systems Biology, Oil Crops Research Institute, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 35002, China
| | - Rajeev K Varshney
- Center of Legume Crop Genetics and Systems Biology, Oil Crops Research Institute, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 35002, China; WA State Agricultural Biotechnology Centre, Centre for Crop and Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, 6150, Australia.
| | - Weijian Zhuang
- Center of Legume Crop Genetics and Systems Biology, Oil Crops Research Institute, College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, 35002, China.
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Tang Y, Gao X, Cui Y, Xu H, Yu J. 植物TCP转录因子研究进展. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2022-0480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liu Y, Yan J, Wang K, Li D, Yang R, Luo H, Zhang W. MiR396-GRF module associates with switchgrass biomass yield and feedstock quality. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1523-1536. [PMID: 33567151 PMCID: PMC8384596 DOI: 10.1111/pbi.13567] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 05/10/2023]
Abstract
Improving plant biomass yield and/or feedstock quality for highly efficient lignocellulose conversion has been the main research focus in genetic modification of switchgrass (Panicum virgatum L.), a dedicated model plant for biofuel production. Here, we proved that overexpression of miR396 (OE-miR396) leads to reduced plant height and lignin content mainly by reducing G-lignin monomer content. We identified nineteen PvGRFs in switchgrass and proved thirteen of them were cleaved by miR396. MiR396-targeted PvGRF1, PvGRF9 and PvGRF3 showed significantly higher expression in stem. By separately overexpressing rPvGRF1, 3 and 9, in which synonymous mutations abolished the miR396 target sites, and suppression of PvGRF1/3/9 activity via PvGRF1/3/9-SRDX overexpression in switchgrass, we confirmed PvGRF1 and PvGRF9 played positive roles in improving plant height and G-lignin content. Overexpression of PvGRF9 was sufficient to complement the defective phenotype of OE-miR396 plants. MiR396-PvGRF9 modulates these traits partly by interfering GA and auxin biosynthesis and signalling transduction and cell wall lignin, glucose and xylan biosynthesis pathways. Moreover, by enzymatic hydrolysis analyses, we found that overexpression of rPvGRF9 significantly enhanced per plant sugar yield. Our results suggest that PvGRF9 can be utilized as a candidate molecular tool in modifying plant biomass yield and feedstock quality.
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Affiliation(s)
- Yanrong Liu
- College of Grassland Science and technologyChina Agricultural UniversityBeijingChina
| | - Jianping Yan
- College of Grassland Science and technologyChina Agricultural UniversityBeijingChina
| | - Kexin Wang
- College of Grassland Science and technologyChina Agricultural UniversityBeijingChina
| | - Dayong Li
- College of Life SciencesShandong Normal UniversityJinanShandongChina
| | - Rui Yang
- Beijing Key Laboratory of New Technology in Agricultural ApplicationCollege of Plant Science and TechnologyBeijing University of AgricultureBeijingChina
| | - Hong Luo
- Department of Genetics and BiochemistryClemson UniversityClemsonSCUSA
| | - Wanjun Zhang
- College of Grassland Science and technologyChina Agricultural UniversityBeijingChina
- Key Lab of Grassland Science in BeijingChina Agricultural UniversityBeijingChina
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Fang Y, Zheng Y, Lu W, Li J, Duan Y, Zhang S, Wang Y. Roles of miR319-regulated TCPs in plant development and response to abiotic stress. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.cj.2020.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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8
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Wang L, Yin Y, Jing X, Wang M, Zhao M, Yu J, Qiu Z, Li YF. Profiling of MicroRNAs Involved in Mepiquat Chloride-Mediated Inhibition of Internode Elongation in Cotton ( Gossypium hirsutum L.) Seedlings. FRONTIERS IN PLANT SCIENCE 2021; 12:643213. [PMID: 33719323 PMCID: PMC7943613 DOI: 10.3389/fpls.2021.643213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/01/2021] [Indexed: 05/06/2023]
Abstract
Mepiquat chloride (MC) is the most important plant growth retardant that is widely used in cotton (Gossypium hirsutum L.) production to suppress excessive vegetative growth and improve plant architecture. MicroRNAs (miRNAs) are important gene expression regulators that control plant growth and development. However, miRNA-mediated post-transcriptional regulation in MC-induced growth inhibition remains unclear. In this study, the dynamic expression profiles of miRNAs responsive to MC in cotton internodes were investigated. A total of 508 known miRNAs belonging to 197 families and five novel miRNAs were identified. Among them, 104 miRNAs were differentially expressed at 48, 72, or 96 h post MC treatment compared with the control (0 h); majority of them were highly conserved miRNAs. The number of differentially expressed miRNAs increased with time after treatment. The expression of 14 known miRNAs was continuously suppressed, whereas 12 known miRNAs and one novel miRNA were continuously induced by MC. The expression patterns of the nine differentially expressed miRNAs were verified using qRT-PCR. The targets of the known and novel miRNAs were predicted. Four conserved and six novel targets were validated using the RLM-5' RACE assay. This study revealed that miRNAs play crucial regulatory roles in the MC-induced inhibition of internode elongation. It can improve our understanding of post-transcriptional gene regulation in MC-mediated growth inhibition and could potentially facilitate the breeding of dwarf cotton.
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Affiliation(s)
- Li Wang
- College of Life Sciences, Henan Normal University, Xinxiang, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang, China
- Li Wang,
| | - Ying Yin
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Xiuxiu Jing
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Menglei Wang
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Miao Zhao
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Juanjuan Yu
- College of Life Sciences, Henan Normal University, Xinxiang, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang, China
| | - Zongbo Qiu
- College of Life Sciences, Henan Normal University, Xinxiang, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang, China
| | - Yong-Fang Li
- College of Life Sciences, Henan Normal University, Xinxiang, China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang, China
- *Correspondence: Yong-Fang Li,
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