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He DY, Liang QY, Xiang CB, Xia JQ. Loss of OsSPL8 Function Confers Improved Resistance to Glufosinate and Abiotic Stresses in Rice. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39323026 DOI: 10.1111/pce.15168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/31/2024] [Accepted: 09/09/2024] [Indexed: 09/27/2024]
Abstract
Weeds are among the most significant factors contributing to decreases in crop yield and quality. Glufosinate, a nonselective, broad-spectrum herbicide, has been extensively utilized for weed control in recent decades. However, crops are usually sensitive to glufosinate. Therefore, the development of glufosinate-resistant crops is crucial for effective weed management in agriculture. In this study, we characterized a SQUAMOSA promoter-binding-like (SPL) factor, OsSPL8, which acts as a negative regulator of glufosinate resistance by inhibiting the transcription of OsGS1;1 and OsGS2 and consequently reducing GS activity. Furthermore, the loss of OsSPL8 function enhanced tolerance to drought and salt stresses. Transcriptomic comparisons between the gar18-3 mutant and wild type revealed that OsSPL8 largely downregulates stress-responsive genes and upregulates growth-related genes. We demonstrated that OsSPL8 directly regulates OsOMTN6 and OsNAC17, which influence drought tolerance. In addition, OsSPL8 directly represses the expression of salt stress tolerance-related genes such as OsHKT1.1 and OsTPP1. Collectively, our results demonstrate that OsSPL8 is a negative regulator of both glufosinate resistance and abiotic stress tolerance.
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Affiliation(s)
- Da-Yu He
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui, China
| | - Qin-Yu Liang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui, China
| | - Cheng-Bin Xiang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui, China
| | - Jin-Qiu Xia
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, University of Science and Technology of China, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Hefei, Anhui, China
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2
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Zeng X, Fan K, Shi Y, Chen R, Liu W, Wang X, Ye G, Lin W, Li Z. OsSPL11 positively regulates grain size by activating the expression of GW5L in rice. PLANT CELL REPORTS 2024; 43:228. [PMID: 39237771 DOI: 10.1007/s00299-024-03315-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 08/26/2024] [Indexed: 09/07/2024]
Abstract
KEY MESSAGE Rice OsSPL11 activates the expression of GW5L through binding to its promoter and positively regulates grain size. Grain size (GS) is an important determinant of grain weight and yield potential in cereal. Here, we report the functional analysis of OsSPL11 in grain length (GL), grain width (GW), and 1000-grain weight (TGW). OsSPL11 mutant plants, osspl11 lines, exhibited a decrease in GL, GW, and TGW, and OsSPL11-OE lines showed an increase in GL and TGW. Expression analysis revealed that OsSPL11 was located in the nucleus and highly expressed in spikelet hull and young development grains, consistent with its function in determining GS. Further analysis confirmed that OsSPL11 directly activates the expression of GW5L to regulate GS, meanwhile OsSPL11 expression is negatively regulated by OsGBP3. Taken together, our findings demonstrate that OsSPL11 could be a key regulator of affecting GS during the spikelet hull development and facilitate the process of improving grain yield by GS modification in rice.
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Affiliation(s)
- Xinhai Zeng
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Kai Fan
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Yu Shi
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Rui Chen
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Wanyu Liu
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Xin Wang
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Guixiang Ye
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Wenxiong Lin
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China
| | - Zhaowei Li
- College of Juncao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
- Key Laboratory of Crop Ecology and Molecular Physiology of Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou, 35002, Fujian, China.
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3
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Li K, Cheng Y, Fang C. OsDWARF10, transcriptionally repressed by OsSPL3, regulates the nutritional metabolism of polished rice. FRONTIERS IN PLANT SCIENCE 2023; 14:1322463. [PMID: 38130489 PMCID: PMC10733476 DOI: 10.3389/fpls.2023.1322463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023]
Abstract
Strigolactone (SL) plays essential roles in plant development and the metabolism of rice leaves. However, the impact of SL on the accumulation of nutritional metabolites in polished rice, as well as the transcription factors directly involved in SL synthesis, remains elusive. In this study, we performed a metabolome analysis on polished rice samples from mutants of an SL biosynthetic gene, OsDWARF10 (OsD10). Compared with those in the wild type plants, primary and secondary metabolites exhibited a series of alterations in the d10 mutants. Notably, the d10 mutants showed a substantial increase in the amino acids and vitamins content. Through a yeast one-hybridization screening assay, we identified OsSPL3 as a transcription factor that binds to the OsD10 promoter, thereby inhibiting OsD10 transcription in vivo and in vitro. Furthermore, we conducted a metabolic profiling analysis in polished rice from plants that overexpressed OsSPL3 and observed enhanced levels of amino acids and vitamins. This study identified a novel transcriptional repressor of the SL biosynthetic gene and elucidated the regulatory roles of OsSPL3 and OsD10 on the accumulation of nutritional metabolites in polished rice.
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Affiliation(s)
- Kang Li
- Hainan Yazhou Bay Seed Laboratory, Scool of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, China
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Yan Cheng
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Chuanying Fang
- Hainan Yazhou Bay Seed Laboratory, Scool of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, China
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, China
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4
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De Paola C, Garcia-Carpintero V, Vazquez-Vilar M, Kaminski K, Fernandez-Del-Carmen A, Sierro N, Ivanov NV, Giuliano G, Waterhouse P, Orzaez D. Comparative analysis of the Squamosa Promoter Binding-Like (SPL) gene family in Nicotiana benthamiana and Nicotiana tabacum. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 335:111797. [PMID: 37467788 DOI: 10.1016/j.plantsci.2023.111797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/14/2023] [Accepted: 07/16/2023] [Indexed: 07/21/2023]
Abstract
SQUAMOSA PROMOTER BINDING-LIKE (SPL) proteins constitute a large family of transcription factors known to play key roles in growth and developmental processes, including juvenile-to-adult and vegetative-to-reproductive phase transitions. This makes SPLs interesting targets for precision breeding in plants of the Nicotiana genus used as e.g. recombinant biofactories. We report the identification of 49 SPL genes in Nicotiana tabacum cv. K326 and 43 SPL genes in Nicotiana benthamiana LAB strain, which were classified into eight phylogenetic groups according to the SPL classification in Arabidopsis. Exon-intron gene structure and DNA-binding domains were highly conserved between homeologues and orthologues. Thirty of the NbSPL genes and 33 of the NtSPL genes were found to be possible targets of microRNA 156. The expression of SPL genes in leaves was analysed by RNA-seq at three different stages, revealing that genes not under miR156 control were in general constitutively expressed at high levels, whereas miR156-regulated genes showed lower expression, often developmentally regulated. We selected the N. benthamiana SPL13_1a gene as target for a CRISPR/Cas9 knock-out experiment. We show here that a full knock-out in this single gene leads to a significant delay in flowering time, a trait that could be exploited to increase biomass for recombinant protein production.
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Affiliation(s)
- Carmine De Paola
- Instituto de Biología Molecular y Celular de Plantas (CSIC-UPV), Valencia, Spain
| | | | - Marta Vazquez-Vilar
- Instituto de Biología Molecular y Celular de Plantas (CSIC-UPV), Valencia, Spain
| | | | | | - Nicolas Sierro
- PMI R&D, Philip Morris Products S.A, Neuchâtel, Switzerland
| | | | | | | | - Diego Orzaez
- Instituto de Biología Molecular y Celular de Plantas (CSIC-UPV), Valencia, Spain.
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Wang Y, Zeng J, Su P, Zhao H, Li L, Xie X, Zhang Q, Wu Y, Wang R, Zhang Y, Yu B, Chen M, Wang Y, Yang G, He G, Chang J, Li Y. An established protocol for generating transgenic wheat for wheat functional genomics via particle bombardment. FRONTIERS IN PLANT SCIENCE 2022; 13:979540. [PMID: 36570946 PMCID: PMC9772560 DOI: 10.3389/fpls.2022.979540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Wheat is one of the most important food crops in the world and is considered one of the top targets in crop biotechnology. With the high-quality reference genomes of wheat and its relative species and the recent burst of genomic resources in Triticeae, demands to perform gene functional studies in wheat and genetic improvement have been rapidly increasing, requiring that production of transgenic wheat should become a routine technique. While established for more than 20 years, the particle bombardment-mediated wheat transformation has not become routine yet, with only a handful of labs being proficient in this technique. This could be due to, at least partly, the low transformation efficiency and the technical difficulties. Here, we describe the current version of this method through adaptation and optimization. We report the detailed protocol of producing transgenic wheat by the particle gun, including several critical steps, from the selection of appropriate explants (i.e., immature scutella), the preparation of DNA-coated gold particles, and several established strategies of tissue culture. More importantly, with over 20 years of experience in wheat transformation in our lab, we share the many technical details and recommendations and emphasize that the particle bombardment-mediated approach has fewer limitations in genotype dependency and vector construction when compared with the Agrobacterium-mediated methods. The particle bombardment-mediated method has been successful for over 30 wheat genotypes, from the tetraploid durum wheat to the hexaploid common wheat, from modern elite varieties to landraces. In conclusion, the particle bombardment-mediated wheat transformation has demonstrated its potential and wide applications, and the full set of protocol, experience, and successful reports in many wheat genotypes described here will further its impacts, making it a routine and robust technique in crop research labs worldwide.
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Affiliation(s)
- Yaqiong Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Jian Zeng
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, Guangdong, China
| | - Peipei Su
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Hongyan Zhao
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Li Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Xiaoxue Xie
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Qian Zhang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Ya’nan Wu
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Ruibin Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Yufan Zhang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Boju Yu
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Mingjie Chen
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Yuesheng Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Junli Chang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
| | - Yin Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, China
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Yao W, Li C, Fu H, Yang M, Wu H, Ding Y, Li L, Lin S. Genome-Wide Analysis of SQUAMOSA-Promoter-Binding Protein-like Family in Flowering Pleioblastus pygmaeus. Int J Mol Sci 2022; 23:ijms232214035. [PMID: 36430513 PMCID: PMC9695801 DOI: 10.3390/ijms232214035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
SQUAMOSA Promoter-Binding Protein-Like (SPL) family is well-known for playing an important role in plant growth and development, specifically in the reproductive process. Bamboo plants have special reproductive characteristics with a prolonged vegetative phase and uncertain flowering time. However, the underlying functions of SPL genes in reproductive growth are undisclosed in bamboo plants. In the study, a total of 28 SPLs were screened from an ornamental dwarf bamboo species, Pleioblastus pygmaeus. Phylogenetic analysis indicates that 183 SPLs from eight plant species can be classified into nine subfamilies, and the 28 PpSPLs are distributed among eight subfamilies. Homologous analysis shows that as many as 32 pairs of homologous genes were found between P. pygmaeus and rice, and 83 pairs were found between P. pygmaeus and Moso bamboo, whose Ka/Ks values are all <1. MiRNA target prediction reveals that 13 out of the 28 PpSPLs have recognition sites complementary to miRNA156. To screen the SPLs involved in the reproductive growth of bamboo plants, the mRNA abundance of the 28 PpSPLs was profiled in the different tissues of flowering P. pygmaeus and non-flowering plants by RNA-Seq. Moreover, the relative expression level of eight PpSPLs is significantly higher in flowering P. pygmaeus than that in non-flowering plants, which was also validated by RT-qPCR. Combined with phylogenetic analysis and homologous analysis, the eight significant, differentially expressed PpSPLs were identified to be associated with the reproductive process and flower organ development. Among them, there are four potential miRNA156-targeting PpSPLs involved in the flowering process. Of significant interest in the study is the identification of 28 SPLs and the exploration of four key flowering-related SPLs from P. pygmaeus, which provides a theoretic basis for revealing the underlying functions of SPLs in the reproductive growth of bamboo plants.
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Affiliation(s)
- Wenjing Yao
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Chuanzhe Li
- Huaiyin Institute of Agricultural Sciences of Xuhuai Region, Jiangsu Academy of Agricultural Sciences, Huaian 223001, China
| | - Huajun Fu
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Meng Yang
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Hongyu Wu
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Yulong Ding
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Long Li
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
- Correspondence: (L.L.); (S.L.)
| | - Shuyan Lin
- Co-Innovation Center for Sustainable Forestry in Southern China/Bamboo Research Institute, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
- Correspondence: (L.L.); (S.L.)
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7
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Zhang L, Huang Y, Zheng Y, Liu X, Zhou S, Yang X, Liu S, Li Y, Li J, Zhao S, Wang H, Ji Y, Zhang J, Pu M, Zhao Z, Fan J, Wang W. Osa-miR535 targets SQUAMOSA promoter binding protein-like 4 to regulate blast disease resistance in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 110:166-178. [PMID: 34997660 PMCID: PMC9305248 DOI: 10.1111/tpj.15663] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 01/02/2022] [Indexed: 06/14/2023]
Abstract
Many rice microRNAs have been identified as fine-tuning factors in the regulation of agronomic traits and immunity. Among them, Osa-miR535 targets SQUAMOSA promoter binding protein-like 14 (OsSPL14) to positively regulate tillers but negatively regulate yield and immunity. Here, we uncovered that Osa-miR535 targets another SPL gene, OsSPL4, to suppress rice immunity against Magnaporthe oryzae. Overexpression of Osa-miR535 significantly decreased the accumulation of the fusion protein SPL4TBS -YFP that contains the target site of Osa-miR535 in OsSPL4. Consistently, Osa-miR535 mediated the cleavage of OsSPL4 mRNA between the 10th and 11th base pair of the predicted binding site at the 3' untranslated region. Transgenic rice lines overexpressing OsSPL4 (OXSPL4) displayed enhanced blast disease resistance accompanied by enhanced immune responses, including increased expression of defense-relative genes and up-accumulated H2 O2 . By contrast, the knockout mutant osspl4 exhibited susceptibility. Moreover, OsSPL4 binds to the promoter of GH3.2, an indole-3-acetic acid-amido synthetase, and promotes its expression. Together, these data indicate that Os-miR535 targets OsSPL4 and OsSPL4-GH3.2, which may parallel the OsSPL14-WRKY45 module in rice blast disease resistance.
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Affiliation(s)
- Ling‐Li Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
- College of Environmental Science & EngineeringChina West Normal University1 Shida RoadNanchongSichuan637002China
| | - Yan‐Yan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Ya‐Ping Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Xin‐Xian Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Shi‐Xin Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Xue‐Mei Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Shou‐Lan Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Yan Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Jin‐Lu Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
- Present address:
College of Plant ProtectionYunnan Agricultural University95 Jinhei RoadKunmingYunnan650201China
| | - Sheng‐Li Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
- Institute of South Subtropical CropsChinese Academy of Tropical Agricultural SciencesZhanjiangGuangdong524013China
| | - He Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Yun‐Peng Ji
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Ji‐Wei Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Mei Pu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Zhi‐Xue Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Jing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
| | - Wen‐Ming Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural University at Wenjiang211 Huimin RoadChengduSichuan611130China
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8
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Sun Y, Fu M, Wang L, Bai Y, Fang X, Wang Q, He Y, Zeng H. OsSPLs Regulate Male Fertility in Response to Different Temperatures by Flavonoid Biosynthesis and Tapetum PCD in PTGMS Rice. Int J Mol Sci 2022; 23:ijms23073744. [PMID: 35409103 PMCID: PMC8998824 DOI: 10.3390/ijms23073744] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/21/2022] [Accepted: 03/28/2022] [Indexed: 01/19/2023] Open
Abstract
Photoperiod and thermo-sensitive genic male sterile (PTGMS) rice is an important resource for two line hybrid rice production. The SQUAMOSA–promoter binding, such as the (SPL) gene family, encode the plant specific transcription factors that regulate development and defense responses in plants. However, the reports about SPLs participating in male fertility regulation are limited. Here, we identified 19 OsSPL family members and investigated their involvement in the fertility regulation of the PTGMS rice lines, PA2364S and PA2864S, with different fertility transition temperatures. The results demonstrated that OsSPL2, OsSPL4, OsSPL16 and OsSPL17 affect male fertility in response to temperature changes through the MiR156-SPL module. WGCNA (weighted gene co-expression network analysis) revealed that CHI and APX1 were co-expressed with OsSPL17. Targeted metabolite and flavonoid biosynthetic gene expression analysis revealed that OsSPL17 regulates the expression of flavonoid biosynthesis genes CHI, and the up regulation of flavanones (eriodictvol and naringenin) and flavones (apigenin and luteolin) content contributed to plant fertility. Meanwhile, OsSPL17 negatively regulates APX1 to affect APX (ascorbate peroxidase) activity, thereby regulating ROS (reactive oxygen species) content in the tapetum, controlling the PCD (programmed cell death) process and regulating male fertility in rice. Overall, this report highlights the potential role of OsSPL for the regulation of male fertility in rice and provides a new insight for the further understanding of fertility molecular mechanisms in PTGMS rice.
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Affiliation(s)
| | | | | | | | | | | | - Ying He
- Correspondence: (Y.H.); (H.Z.)
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9
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Li L, Shi F, Wang G, Guan Y, Zhang Y, Chen M, Chang J, Yang G, He G, Wang Y, Li Y. Conservation and Divergence of SQUAMOSA-PROMOTER BINDING PROTEIN-LIKE ( SPL) Gene Family between Wheat and Rice. Int J Mol Sci 2022; 23:2099. [PMID: 35216210 PMCID: PMC8874652 DOI: 10.3390/ijms23042099] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/28/2022] [Accepted: 01/30/2022] [Indexed: 11/22/2022] Open
Abstract
The SQUAMOSA-PROMOTER BINDING PROTEIN-LIKE (SPL) gene family affects plant architecture, panicle structure, and grain development, representing key genes for crop improvements. The objective of the present study is to utilize the well characterized SPLs' functions in rice to facilitate the functional genomics of TaSPL genes. To achieve these goals, we combined several approaches, including genome-wide analysis of TaSPLs, comparative genomic analysis, expression profiling, and functional study of TaSPL3 in rice. We established the orthologous relationships of 56 TaSPL genes with the corresponding OsSPLs, laying a foundation for the comparison of known SPL functions between wheat and rice. Some TaSPLs exhibited different spatial-temporal expression patterns when compared to their rice orthologs, thus implicating functional divergence. TaSPL2/6/8/10 were identified to respond to different abiotic stresses through the combination of RNA-seq and qPCR expression analysis. Additionally, ectopic expression of TaSPL3 in rice promotes heading dates, affects leaf and stem development, and leads to smaller panicles and decreased yields per panicle. In conclusion, our work provides useful information toward cataloging of the functions of TaSPLs, emphasized the conservation and divergence between TaSPLs and OsSPLs, and identified the important SPL genes for wheat improvement.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Yuesheng Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (L.L.); (F.S.); (G.W.); (Y.G.); (Y.Z.); (M.C.); (J.C.); (G.Y.) ; (G.H.)
| | - Yin Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (L.L.); (F.S.); (G.W.); (Y.G.); (Y.Z.); (M.C.); (J.C.); (G.Y.) ; (G.H.)
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10
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Yu L, Ma S, Zhang X, Tian D, Yang S, Jia X, Traw MB. Ancient rapid functional differentiation and fixation of the duplicated members in rice Dof genes after whole genome duplication. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 108:1365-1381. [PMID: 34585814 DOI: 10.1111/tpj.15516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/03/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Whole genome duplication (WGD) in plants is typically followed by genomic downsizing, where large portions of the new genome are lost. Whether this downsizing is accompanied by increased or decreased evolutionary rates of the remaining genes is poorly known, not least because homeolog pairings are often obscured by chromosomal rearrangement. Here, we use the newly published genome from a sedge, namely Kobresia littledalei, and CRISPR/Cas-9 editing to investigate how the Rho WGD event 70 million years ago (MYA) affected transcription factor evolutionary rates, fates, and function in rice (Oryza sativa) and sorghum (Sorghum bicolor). We focus on the 30-member DNA-binding with one zinc finger (Dof) transcription factor family in both crops due to their agronomic importance. Using the known speciation dates of rice from Kobresia (97 MYA) and sorghum (50 MYA), we find that rates of amino acid substitution in the critical Dof domain region were over twofold higher during the 20-million-year period following the WGD than before or afterward. Through comparison of synteny blocks, we report that at least 11% of Dof genes were purged from 70 to 50 MYA, while only 6% have been lost in the most recent 50-million-year interval. CRISPR/Cas9 editing revealed widespread fitness-related defects in flowering and lack of redundancy of paired members, as well as significant differences in expression between gene pairs. Together these findings demonstrate the strength of Dof genes as a model for deep evolutionary study and offer one of the most detailed portraits yet of the Rho WGD impact on a gene lineage.
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Affiliation(s)
- Luyao Yu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Shiying Ma
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Xiaohui Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Dacheng Tian
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Sihai Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Xianqing Jia
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
- Key Laboratory of Plant Nutrition and Fertilizers, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Milton Brian Traw
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
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11
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Hu J, Huang L, Chen G, Liu H, Zhang Y, Zhang R, Zhang S, Liu J, Hu Q, Hu F, Wang W, Ding Y. The Elite Alleles of OsSPL4 Regulate Grain Size and Increase Grain Yield in Rice. RICE (NEW YORK, N.Y.) 2021; 14:90. [PMID: 34727228 PMCID: PMC8563897 DOI: 10.1186/s12284-021-00531-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 10/16/2021] [Indexed: 05/18/2023]
Abstract
Grain weight and grain number, the two important yield traits, are mainly determined by grain size and panicle architecture in rice. Herein, we report the identification and functional analysis of OsSPL4 in panicle and grain development of rice. Using CRISPR/Cas9 system, two elite alleles of OsSPL4 were obtained, which exhibited an increasing number of grains per panicle and grain size, resulting in increase of rice yield. Cytological analysis showed that OsSPL4 could regulate spikelet development by promoting cell division. The results of RNA-seq and qRT-PCR validations also demonstrated that several MADS-box and cell-cycle genes were up-regulated in the mutation lines. Co-expression network revealed that many yield-related genes were involved in the regulation network of OsSPL4. In addition, OsSPL4 could be cleaved by the osa-miR156 in vivo, and the OsmiR156-OsSPL4 module might regulate the grain size in rice. Further analysis indicated that the large-grain allele of OsSPL4 in indica rice might introgress from aus varieties under artificial selection. Taken together, our findings suggested that OsSPL4 could be as a key regulator of grain size by acting on cell division control and provided a strategy for panicle architecture and grain size modification for yield improvement in rice.
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Affiliation(s)
- Jihong Hu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Liyu Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming, 650500, China
| | - Guanglong Chen
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Hui Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yesheng Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China
- BGI-Baoshan, Baoshan, 678004, Yunnan, China
| | - Ru Zhang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Shilai Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming, 650500, China
| | - Jintao Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming, 650500, China
| | - Qingyi Hu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming, 650500, China
| | - Fengyi Hu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Agriculture, Yunnan University, Kunming, 650500, China.
| | - Wen Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Yi Ding
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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12
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Yan Y, Wei M, Li Y, Tao H, Wu H, Chen Z, Li C, Xu JH. MiR529a controls plant height, tiller number, panicle architecture and grain size by regulating SPL target genes in rice (Oryza sativa L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 302:110728. [PMID: 33288029 DOI: 10.1016/j.plantsci.2020.110728] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/18/2020] [Accepted: 10/21/2020] [Indexed: 05/02/2023]
Abstract
Rice is one of the most important food crops in the world. Breeding high-yield, multi-resistant and high-quality varieties has always been the goal of rice breeding. Rice tiller, panicle architecture and grain size are the constituent factors of yield, which are regulated by both genetic and environmental factors, including miRNAs, transcription factors, and downstream target genes. Previous studies have shown that SPL (SQUAMOSA PROMOTER BINDING-LIKE) transcription factors can control rice tiller, panicle architecture and grain size, which were regulated by miR156, miR529 and miR535. In this study, we obtained miR529a target mimicry (miR529a-MIMIC) transgenic plants to investigate plant phenotypes, physiological and molecular characteristics together with miR529a overexpression (miR529a-OE) and wild type (WT) to explore the function of miR529a and its SPL target genes in rice. We found that OsSPL2, OsSPL17 and OsSPL18 at seedling stage were regulated by miR529a, but there had complicated mechanism to control plant height. OsSPL2, OsSPL16, OsSPL17 and SPL18 at tillering stage were regulated by miR529a to control plant height and tiller number. And panicle architecture and grain size were controlled by miR529a through altering the expression of all five target genes OsSPL2, OsSPL7, OsSPL14, OsSPL16, OsSPL17 and OsSPL18. Our study suggested that miR529a might control rice growth and development by regulating different SPL target genes at different stages, which could provide a new method to improve rice yield by regulating miR529a and its SPL target genes.
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Affiliation(s)
- Yan Yan
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Mingxiao Wei
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Yu Li
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Hua Tao
- Henan Agricultural Radio and Television School, Zhengzhou, 450008, China
| | - Haoyu Wu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Zhufeng Chen
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China
| | - Can Li
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Jian-Hong Xu
- Institute of Crop Science, Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, 310058, China.
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