1
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Cai Q, Wang JJ, Xie JT, Jiang DH. Functional characterization of BbEaf6 in Beauveria bassiana: Implications for fungal virulence and stress response. Virulence 2024; 15:2387172. [PMID: 39082211 DOI: 10.1080/21505594.2024.2387172] [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: 02/27/2024] [Revised: 06/26/2024] [Accepted: 07/28/2024] [Indexed: 08/03/2024] Open
Abstract
The Eaf6 protein, a conserved component of the NuA4 and NuA3 complexes in yeast and MOZ/MORF complexes in humans, plays crucial roles in transcriptional activation, gene regulation, and cell cycle control. Despite its significance in other organisms, the functional role of Eaf6 in entomopathogenic fungi (EPF) remained unexplored. Here, we investigate the function of BbEaf6, the Eaf6 homolog in the entomopathogenic fungus Beauveria bassiana. We demonstrate that BbEaf6 is predominantly localized in nuclei, similar to its counterpart in other fungi. Deletion of BbEaf6 resulted in delayed conidiation, reduced conidial yield, and altered conidial properties. Transcriptomic analysis revealed dysregulation of the genes involved in asexual development and cell cycle progression in the ΔBbEaf6 mutant. Furthermore, the ΔBbEaf6 mutant exhibited decreased tolerance to various stresses, including ionic stress, cell wall perturbation, and DNA damage stress. Notably, the ΔBbEaf6 mutant displayed attenuated virulence in insect bioassays, accompanied by dysregulation of genes associated with cuticle penetration and haemocoel infection. Overall, our study elucidates the multifaceted role of BbEaf6 in stress response, development, and virulence in B. bassiana, providing valuable insights into the molecular mechanisms governing fungal pathogenesis and potential targets for pest management strategies.
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Affiliation(s)
- Qing Cai
- State Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Juan-Juan Wang
- School of Biological Science and Biotechnology, University of Jinan, Jinan, Shandong, China
| | - Jia-Tao Xie
- State Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Dao-Hong Jiang
- State Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
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2
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Wang J, Liu X, Chen Y, Zhu FL, Sheng J, Diao Y. Physiological and transcriptomic analyses reveal the cadmium tolerance mechanism of Miscanthus lutarioriparia. PLoS One 2024; 19:e0302940. [PMID: 38748679 PMCID: PMC11095687 DOI: 10.1371/journal.pone.0302940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 04/15/2024] [Indexed: 05/19/2024] Open
Abstract
Miscanthus lutarioriparia is a promising energy crop that is used for abandoned mine soil phytoremediation because of its high biomass yield and strong tolerance to heavy metals. However, the biological mechanism of heavy metal resistance is limited, especially for applications in the soil restoration of mining areas. Here, through the investigation of soil cadmium(Cd) in different mining areas and soil potted under Cd stress, the adsorption capacity of Miscanthus lutarioriparia was analyzed. The physiological and transcriptional effects of Cd stress on M. lutarioriparia leaves and roots under hydroponic conditions were analyzed. The results showed that M. lutarioriparia could reduce the Cd content in mining soil by 29.82%. Moreover, different Cd varieties have different Cd adsorption capacities in soils with higher Cd concentration. The highest cadmium concentrations in the aboveground and belowground parts of the plants were 185.65 mg/kg and 186.8 mg/kg, respectively. The total chlorophyll content, superoxide dismutase and catalase activities all showed a trend of increasing first and then decreasing. In total, 24,372 differentially expressed genes were obtained, including 7735 unique to leaves, 7725 unique to roots, and 8912 unique to leaves and roots, which showed differences in gene expression between leaves and roots. These genes were predominantly involved in plant hormone signal transduction, glutathione metabolism, flavonoid biosynthesis, ABC transporters, photosynthesis and the metal ion transport pathway. In addition, the number of upregulated genes was greater than the number of downregulated genes at different stress intervals, which indicated that M. lutarioriparia adapted to Cd stress mainly through positive regulation. These results lay a solid foundation for breeding excellent Cd resistant M. lutarioriparia and other plants. The results also have an important theoretical significance for further understanding the detoxification mechanism of Cd stress and the remediation of heavy metal pollution in mining soil.
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Affiliation(s)
- Jia Wang
- Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining, Anhui University of Science and Technology, Huainan, 232001, P. R. China
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Safety and Health of the Ministry of Education, Anhui University of Science and Technology, Huainan, 232001, P. R. China
- State Key Laboratory of Hybrid Rice, Hubei Lotus Engineering Center, College of Life Sciences, Wuhan University, Wuhan, 430023, P. R. China
| | - Xinyu Liu
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Safety and Health of the Ministry of Education, Anhui University of Science and Technology, Huainan, 232001, P. R. China
| | - Yiran Chen
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Safety and Health of the Ministry of Education, Anhui University of Science and Technology, Huainan, 232001, P. R. China
| | - Feng lin Zhu
- Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining, Anhui University of Science and Technology, Huainan, 232001, P. R. China
- Key Laboratory of Industrial Dust Prevention and Control & Occupational Safety and Health of the Ministry of Education, Anhui University of Science and Technology, Huainan, 232001, P. R. China
| | - Jiajing Sheng
- State Key Laboratory of Hybrid Rice, Hubei Lotus Engineering Center, College of Life Sciences, Wuhan University, Wuhan, 430023, P. R. China
| | - Ying Diao
- School of life science and technology, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
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3
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Li J, Gu W, Yang Z, Chen J, Yi F, Li T, Li J, Zhou Y, Guo Y, Song W, Lai J, Zhao H. ZmELP1, an Elongator complex subunit, is required for the maintenance of histone acetylation and RNA Pol II phosphorylation in maize kernels. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1251-1268. [PMID: 38098341 PMCID: PMC11022810 DOI: 10.1111/pbi.14262] [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: 09/14/2023] [Revised: 11/20/2023] [Accepted: 11/26/2023] [Indexed: 01/26/2024]
Abstract
The Elongator complex was originally identified as an interactor of hyperphosphorylated RNA polymerase II (RNAPII) in yeast and has histone acetyltransferase (HAT) activity. However, the genome-wide regulatory roles of Elongator on transcriptional elongation and histone acetylation remain unclear. We characterized a maize miniature seed mutant, mn7 and map-based cloning revealed that Mn7 encodes one of the subunits of the Elongator complex, ZmELP1. ZmELP1 deficiency causes marked reductions in the kernel size and weight. Molecular analyses showed that ZmELP1 interacts with ZmELP3, which is required for H3K14 acetylation (H3K14ac), and Elongator complex subunits interact with RNA polymerase II (RNAPII) C-terminal domain (CTD). Genome-wide analyses indicated that loss of ZmELP1 leads to a significant decrease in the deposition of H3K14ac and the CTD of phosphorylated RNAPII on Ser2 (Ser2P). These chromatin changes positively correlate with global transcriptomic changes. ZmELP1 mutation alters the expression of genes involved in transcriptional regulation and kernel development. We also showed that the decrease of Ser2P depends on the deposition of Elongator complex-mediated H3K14ac. Taken together, our results reveal an important role of ZmELP1 in the H3K14ac-dependent transcriptional elongation, which is critical for kernel development.
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Affiliation(s)
- Jianrui Li
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
| | - Wei Gu
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
- Crop Breeding, Cultivation Research Institution/CIMMYT‐China Specialty Maize Research Center, Shanghai Engineering Research Center of Specialty Maize, Shanghai Key Laboratory of Agricultural Genetics and BreedingShanghai Academy of Agricultural SciencesShanghaiChina
| | - Zhijia Yang
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
| | - Jian Chen
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
| | - Fei Yi
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
- Engineering Research Center of Plant Growth Regulator, Ministry of Education, College of Agronomy and BiotechnologyChina Agricultural UniversityBeijingChina
| | - Tong Li
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
| | - Jingrui Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Yue Zhou
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking‐Tsinghua Center for Life SciencesPeking UniversityBeijingChina
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Weibin Song
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
| | - Jinsheng Lai
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
| | - Haiming Zhao
- State Key Laboratory of Maize Bio‐breeding, National Maize Improvement Center, Frontiers Science Center for Molecular Design Breeding, Department of Plant Genetics and BreedingChina Agricultural UniversityBeijingChina
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4
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Chen Y, Guo P, Dong Z. The role of histone acetylation in transcriptional regulation and seed development. PLANT PHYSIOLOGY 2024; 194:1962-1979. [PMID: 37979164 DOI: 10.1093/plphys/kiad614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/09/2023] [Accepted: 10/29/2023] [Indexed: 11/20/2023]
Abstract
Histone acetylation is highly conserved across eukaryotes and has been linked to gene activation since its discovery nearly 60 years ago. Over the past decades, histone acetylation has been evidenced to play crucial roles in plant development and response to various environmental cues. Emerging data indicate that histone acetylation is one of the defining features of "open chromatin," while the role of histone acetylation in transcription remains controversial. In this review, we briefly describe the discovery of histone acetylation, the mechanism of histone acetylation regulating transcription in yeast and mammals, and summarize the research progress of plant histone acetylation. Furthermore, we also emphasize the effect of histone acetylation on seed development and its potential use in plant breeding. A comprehensive knowledge of histone acetylation might provide new and more flexible research perspectives to enhance crop yield and stress resistance.
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Affiliation(s)
- Yan Chen
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Peiguo Guo
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Zhicheng Dong
- Guangdong Provincial Key Laboratory of Plant Adaptation and Molecular Design, Guangzhou Key Laboratory of Crop Gene Editing, Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou 510006, China
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5
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Candela-Ferre J, Diego-Martin B, Pérez-Alemany J, Gallego-Bartolomé J. Mind the gap: Epigenetic regulation of chromatin accessibility in plants. PLANT PHYSIOLOGY 2024; 194:1998-2016. [PMID: 38236303 PMCID: PMC10980423 DOI: 10.1093/plphys/kiae024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/07/2023] [Accepted: 11/23/2023] [Indexed: 01/19/2024]
Abstract
Chromatin plays a crucial role in genome compaction and is fundamental for regulating multiple nuclear processes. Nucleosomes, the basic building blocks of chromatin, are central in regulating these processes, determining chromatin accessibility by limiting access to DNA for various proteins and acting as important signaling hubs. The association of histones with DNA in nucleosomes and the folding of chromatin into higher-order structures are strongly influenced by a variety of epigenetic marks, including DNA methylation, histone variants, and histone post-translational modifications. Additionally, a wide array of chaperones and ATP-dependent remodelers regulate various aspects of nucleosome biology, including assembly, deposition, and positioning. This review provides an overview of recent advances in our mechanistic understanding of how nucleosomes and chromatin organization are regulated by epigenetic marks and remodelers in plants. Furthermore, we present current technologies for profiling chromatin accessibility and organization.
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Affiliation(s)
- Joan Candela-Ferre
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022Spain
| | - Borja Diego-Martin
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022Spain
| | - Jaime Pérez-Alemany
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022Spain
| | - Javier Gallego-Bartolomé
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022Spain
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6
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Liao B, Xiang YH, Li Y, Yang KY, Shan JX, Ye WW, Dong NQ, Kan Y, Yang YB, Zhao HY, Yu HX, Lu ZQ, Zhao Y, Zhao Q, Guo D, Guo SQ, Lei JJ, Mu XR, Cao YJ, Han B, Lin HX. Dysfunction of duplicated pair rice histone acetyltransferases causes segregation distortion and an interspecific reproductive barrier. Nat Commun 2024; 15:996. [PMID: 38307858 PMCID: PMC10837208 DOI: 10.1038/s41467-024-45377-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/21/2024] [Indexed: 02/04/2024] Open
Abstract
Postzygotic reproductive isolation, which results in the irreversible divergence of species, is commonly accompanied by hybrid sterility, necrosis/weakness, or lethality in the F1 or other offspring generations. Here we show that the loss of function of HWS1 and HWS2, a couple of duplicated paralogs, together confer complete interspecific incompatibility between Asian and African rice. Both of these non-Mendelian determinants encode the putative Esa1-associated factor 6 (EAF6) protein, which functions as a characteristic subunit of the histone H4 acetyltransferase complex regulating transcriptional activation via genome-wide histone modification. The proliferating tapetum and inappropriate polar nuclei arrangement cause defective pollen and seeds in F2 hybrid offspring due to the recombinant HWS1/2-mediated misregulation of vitamin (biotin and thiamine) metabolism and lipid synthesis. Evolutionary analysis of HWS1/2 suggests that this gene pair has undergone incomplete lineage sorting (ILS) and multiple gene duplication events during speciation. Our findings have not only uncovered a pair of speciation genes that control hybrid breakdown but also illustrate a passive mechanism that could be scaled up and used in the guidance and optimization of hybrid breeding applications for distant hybridization.
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Affiliation(s)
- Ben Liao
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - You-Huang Xiang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yan Li
- China National Center for Gene Research, National Key Laboratory of Plant Molecular Genetics, CAS Center of Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200233, China
| | - Kai-Yang Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun-Xiang Shan
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Wang-Wei Ye
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Nai-Qian Dong
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Yi Kan
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Yi-Bing Yang
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Huai-Yu Zhao
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong-Xiao Yu
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Zi-Qi Lu
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yan Zhao
- China National Center for Gene Research, National Key Laboratory of Plant Molecular Genetics, CAS Center of Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200233, China
| | - Qiang Zhao
- China National Center for Gene Research, National Key Laboratory of Plant Molecular Genetics, CAS Center of Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200233, China
| | - Dongling Guo
- China National Center for Gene Research, National Key Laboratory of Plant Molecular Genetics, CAS Center of Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200233, China
| | - Shuang-Qin Guo
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Jie-Jie Lei
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Rui Mu
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying-Jie Cao
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Han
- China National Center for Gene Research, National Key Laboratory of Plant Molecular Genetics, CAS Center of Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200233, China.
| | - Hong-Xuan Lin
- National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
- University of the Chinese Academy of Sciences, Beijing, 100049, China.
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China.
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7
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Zheng SY, Guan BB, Yuan DY, Zhao QQ, Ge W, Tan LM, Chen SS, Li L, Chen S, Xu RM, He XJ. Dual roles of the Arabidopsis PEAT complex in histone H2A deubiquitination and H4K5 acetylation. MOLECULAR PLANT 2023; 16:1847-1865. [PMID: 37822080 DOI: 10.1016/j.molp.2023.10.006] [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: 05/18/2023] [Revised: 09/06/2023] [Accepted: 10/08/2023] [Indexed: 10/13/2023]
Abstract
Histone H2A monoubiquitination is associated with transcriptional repression and needs to be removed by deubiquitinases to facilitate gene transcription in eukaryotes. However, the deubiquitinase responsible for genome-wide H2A deubiquitination in plants has yet to be identified. In this study, we found that the previously identified PWWP-EPCR-ARID-TRB (PEAT) complex components interact with both the ubiquitin-specific protease UBP5 and the redundant histone acetyltransferases HAM1 and HAM2 (HAM1/2) to form a larger version of PEAT complex in Arabidopsis thaliana. UBP5 functions as an H2A deubiquitinase in a nucleosome substrate-dependent manner in vitro and mediates H2A deubiquitination at the whole-genome level in vivo. HAM1/2 are shared subunits of the PEAT complex and the conserved NuA4 histone acetyltransferase complex, and are responsible for histone H4K5 acetylation. Within the PEAT complex, the PWWP components (PWWP1, PWWP2, and PWWP3) directly interact with UBP5 and are necessary for UBP5-mediated H2A deubiquitination, while the EPCR components (EPCR1 and EPCR2) directly interact with HAM1/2 and are required for HAM1/2-mediated H4K5 acetylation. Collectively, our study not only identifies dual roles of the PEAT complex in H2A deubiquitination and H4K5 acetylation but also illustrates how these processes collaborate at the whole-genome level to regulate the transcription and development in plants.
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Affiliation(s)
- Si-Yao Zheng
- College of Life Sciences, Beijing Normal University, Beijing, China; National Institute of Biological Sciences, Beijing, China
| | - Bin-Bin Guan
- National Institute of Biological Sciences, Beijing, China
| | - Dan-Yang Yuan
- National Institute of Biological Sciences, Beijing, China
| | | | - Weiran Ge
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Lian-Mei Tan
- National Institute of Biological Sciences, Beijing, China
| | - Shan-Shan Chen
- National Institute of Biological Sciences, Beijing, China
| | - Lin Li
- National Institute of Biological Sciences, Beijing, China
| | - She Chen
- National Institute of Biological Sciences, Beijing, China
| | - Rui-Ming Xu
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; School of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xin-Jian He
- National Institute of Biological Sciences, Beijing, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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8
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Chen L, Li Q, Wang M, Xiao F, Li K, Yang R, Sun M, Zhang H, Guo J, Chen J, Jiao F. ZmCOP1 Regulates Maize Mesocotyl Length and Plant Height through the Phytohormone Pathways. Life (Basel) 2023; 13:1522. [PMID: 37511897 PMCID: PMC10381158 DOI: 10.3390/life13071522] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
The morphogenesis of crops is critical to their yield performance. COP1 (constitutively photomorphogenic1) is one of the core regulators in plant morphogenesis and has been deeply studied in Arabidopsis thaliana. However, the function of COP1 in maize is still unclear. Here, we found that the mesocotyl lengths of zmcop1 loss-of-function mutants were shorter than those of wild-type B73 in darkness, while the mesocotyl lengths of lines with ZmCOP1 overexpression were longer than those of wild-type B104. The plant height with zmcop1 was shorter than that of B73 in both short- and long-day photoperiods. Using transcriptome RNA sequencing technology, we identified 33 DEGs (differentially expressed genes) between B73's etiolated seedlings and those featuring zmcop1, both in darkness. The DEGs were mainly enriched in the plant phytohormone pathways. Our results provide direct evidence that ZmCOP1 functions in the elongation of etiolated seedlings in darkness and affects plant height in light. Our data can be applied in the improvement of maize plant architecture.
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Affiliation(s)
- Liping Chen
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Qiuhua Li
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Ming Wang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Feng Xiao
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Kangshi Li
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Ran Yang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Meng Sun
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Haiyan Zhang
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Jinjie Guo
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Sub-Center for National Maize Improvement Center, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Jingtang Chen
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Fuchao Jiao
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- The Characteristic Laboratory of Crop Germplasm Innovation and Application, Provincial Department of Education, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
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9
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Li L, Li Q, Chen B, Wang J, Ding F, Wang P, Zhang X, Hou J, Luo R, Li X, Zheng J, Yang S, Yang L, Zhu L, Sun S, Ma C, Li Q, Li Y, Hu J. Identification of candidate genes that regulate the trade-off between seedling cold tolerance and fruit quality in melon ( Cucumis melo L.). HORTICULTURE RESEARCH 2023; 10:uhad093. [PMID: 37416729 PMCID: PMC10321389 DOI: 10.1093/hr/uhad093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 05/01/2023] [Indexed: 07/08/2023]
Abstract
Trade-offs between survival and growth are widely observed in plants. Melon is an annual, trailing herb that produces economically valuable fruits that are traditionally cultivated in early spring in China. Melon seedlings are sensitive to low temperatures, and thus usually suffer from cold stress during the early growth period. However, little is known about the mechanism behind the trade-offs between seedling cold tolerance and fruit quality in melon. In this study, a total of 31 primary metabolites were detected from the mature fruits of eight melon lines that differ with respect to seedling cold tolerance; these included 12 amino acids, 10 organic acids, and 9 soluble sugars. Our results showed that concentrations of most of the primary metabolites in the cold-resistant melons were generally lower than in the cold-sensitive melons; the greatest difference in metabolite levels was observed between the cold-resistant line H581 and the moderately cold-resistant line HH09. The metabolite and transcriptome data for these two lines were then subjected to weighted correlation network analysis, resulting in the identification of five key candidate genes underlying the balancing between seedling cold tolerance and fruit quality. Among these genes, CmEAF7 might play multiple roles in regulating chloroplast development, photosynthesis, and the ABA pathway. Furthermore, multi-method functional analysis showed that CmEAF7 can certainly improve both seedling cold tolerance and fruit quality in melon. Our study identified an agriculturally important gene, CmEAF7, and provides a new insight into breeding methods to develop melon cultivars with seedling cold tolerance and high fruit quality.
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Affiliation(s)
- Lili Li
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Qiong Li
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Bin Chen
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Jiyu Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Fei Ding
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Panqiao Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiuyue Zhang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Juan Hou
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Renren Luo
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiang Li
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Jingwen Zheng
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Sen Yang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Luming Yang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Lei Zhu
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Shouru Sun
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Changsheng Ma
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Qin Li
- The Seed Management Station of Zhengzhou City, Zhengzhou 450001, China
| | - Ying Li
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
| | - Jianbin Hu
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
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10
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Wu CJ, Yuan DY, Liu ZZ, Xu X, Wei L, Cai XW, Su YN, Li L, Chen S, He XJ. Conserved and plant-specific histone acetyltransferase complexes cooperate to regulate gene transcription and plant development. NATURE PLANTS 2023; 9:442-459. [PMID: 36879016 DOI: 10.1038/s41477-023-01359-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 01/30/2023] [Indexed: 05/18/2023]
Abstract
Although a conserved SAGA complex containing the histone acetyltransferase GCN5 is known to mediate histone acetylation and transcriptional activation in eukaryotes, how to maintain different levels of histone acetylation and transcription at the whole-genome level remains to be determined. Here we identify and characterize a plant-specific GCN5-containing complex, which we term PAGA, in Arabidopsis thaliana and Oryza sativa. In Arabidopsis, the PAGA complex consists of two conserved subunits (GCN5 and ADA2A) and four plant-specific subunits (SPC, ING1, SDRL and EAF6). We find that PAGA and SAGA can independently mediate moderate and high levels of histone acetylation, respectively, thereby promoting transcriptional activation. Moreover, PAGA and SAGA can also repress gene transcription via the antagonistic effect between PAGA and SAGA. Unlike SAGA, which regulates multiple biological processes, PAGA is specifically involved in plant height and branch growth by regulating the transcription of hormone biosynthesis and response related genes. These results reveal how PAGA and SAGA cooperate to regulate histone acetylation, transcription and development. Given that the PAGA mutants show semi-dwarf and increased branching phenotypes without reduction in seed yield, the PAGA mutations could potentially be used for crop improvement.
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Affiliation(s)
- Chan-Juan Wu
- National Institute of Biological Sciences, Beijing, China
| | - Dan-Yang Yuan
- National Institute of Biological Sciences, Beijing, China
| | - Zhen-Zhen Liu
- National Institute of Biological Sciences, Beijing, China
| | - Xin Xu
- National Institute of Biological Sciences, Beijing, China
| | - Long Wei
- National Institute of Biological Sciences, Beijing, China
| | - Xue-Wei Cai
- National Institute of Biological Sciences, Beijing, China
| | - Yin-Na Su
- National Institute of Biological Sciences, Beijing, China
| | - Lin Li
- National Institute of Biological Sciences, Beijing, China
| | - She Chen
- National Institute of Biological Sciences, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Xin-Jian He
- National Institute of Biological Sciences, Beijing, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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11
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Zhao H, Ge Z, Zhou M, Bai R, Zeng H, Wei Y, He C, Shi H. Histone acetyltransferase HAM1 interacts with molecular chaperone DNAJA2 and confers immune responses through salicylic acid biosynthetic genes in cassava. PLANT, CELL & ENVIRONMENT 2023; 46:635-649. [PMID: 36451539 DOI: 10.1111/pce.14501] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Cassava bacterial blight (CBB) is one of the most serious diseases in cassava production, so it is essential to explore the underlying mechanism of immune responses. Histone acetylation is an important epigenetic modification, however, its relationship with cassava disease resistance remains unclear. Here, we identified 10 histone acetyltransferases in cassava and found that the transcript of MeHAM1 showed the highest induction to CBB. Functional analysis showed that MeHAM1 positively regulated disease resistance to CBB through modulation of salicylic acid (SA) accumulation. Further investigation revealed that MeHAM1 directly activated SA biosynthetic genes' expression via promoting lysine 9 of histone 3 (H3K9) acetylation and lysine 5 of histone 4 (H4K5) acetylation of these genes. In addition, molecular chaperone MeDNAJA2 physically interacted with MeHAM1, and MeDNAJA2 also regulated plant immune responses and SA biosynthetic genes. In conclusion, this study illustrates that MeHAM1 and MeDNAJA2 confer immune responses through transcriptional programming of SA biosynthetic genes via histone acetylation. The MeHAM1 & MeDNAJA2-SA biosynthesis module not only constructs the direct relationship between histone acetylation and cassava disease resistance, but also provides gene network with potential value for genetic improvement of cassava disease resistance.
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Affiliation(s)
- Huiping Zhao
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
| | - Zhongyuan Ge
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
| | - Mengmeng Zhou
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
| | - Ruoyu Bai
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
| | - Hongqiu Zeng
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Yunxie Wei
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Chaozu He
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
| | - Haitao Shi
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), Sanya Nanfan Research Institute-College of Tropical Crops, Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, Hainan, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, China
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12
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Ding B, Xie H, Zhang K, Li H, Gao Y, Zhang J, Xu B, Peng L, Yang G, Wang GL, Gill U, Wang ZY, Chai M. Nuclear EPL-HAM complex is essential for the development of chloroplasts. J Genet Genomics 2022; 49:1165-1168. [PMID: 35489697 DOI: 10.1016/j.jgg.2022.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/14/2022] [Accepted: 04/14/2022] [Indexed: 01/18/2023]
Affiliation(s)
- Bo Ding
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Hongli Xie
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Kangning Zhang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - He Li
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Yushi Gao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Jing Zhang
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Bin Xu
- College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Lianwei Peng
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Guofeng Yang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Guo-Liang Wang
- Department of Plant Pathology, Ohio State University, Columbus, OH, 43210, USA
| | - Upinder Gill
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108, USA
| | - Zeng-Yu Wang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong 266109, China
| | - Maofeng Chai
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, Shandong 266109, China.
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13
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Barrero-Gil J, Bouza-Morcillo L, Espinosa-Cores L, Piñeiro M, Jarillo JA. H4 acetylation by the NuA4 complex is required for plastid transcription and chloroplast biogenesis. NATURE PLANTS 2022; 8:1052-1063. [PMID: 36038656 DOI: 10.1038/s41477-022-01229-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Chloroplast biogenesis is crucial in plant development, as it is essential for the transition to autotrophic growth. This process is light-induced and relies on the orchestrated transcription of nuclear and plastid genes, enabling the effective assembly and regulation of the photosynthetic machinery. Here we reveal a new regulation level for this process by showing the involvement of chromatin remodelling in the nuclear control of plastid gene expression for proper chloroplast biogenesis and function. The two Arabidopsis homologues of yeast EPL1 protein, components of the NuA4 histone acetyltransferase complex, are essential for plastid transcription and correct chloroplast development and performance. We show that EPL1 proteins are light-regulated and necessary for concerted expression of nuclear genes encoding most components of chloroplast transcriptional machinery, directly mediating H4K5ac deposition at these loci and promoting the expression of plastid genes required for chloroplast biogenesis. These data unveil a NuA4-mediated mechanism regulating chloroplast biogenesis that links the transcription of nuclear and plastid genomes during chloroplast development.
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Affiliation(s)
- Javier Barrero-Gil
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)/CSIC, Campus Montegancedo UPM, Pozuelo de Alarcón (Madrid), Madrid, Spain
| | - Laura Bouza-Morcillo
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)/CSIC, Campus Montegancedo UPM, Pozuelo de Alarcón (Madrid), Madrid, Spain
| | - Loreto Espinosa-Cores
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)/CSIC, Campus Montegancedo UPM, Pozuelo de Alarcón (Madrid), Madrid, Spain
| | - Manuel Piñeiro
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)/CSIC, Campus Montegancedo UPM, Pozuelo de Alarcón (Madrid), Madrid, Spain.
| | - José A Jarillo
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)/CSIC, Campus Montegancedo UPM, Pozuelo de Alarcón (Madrid), Madrid, Spain.
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14
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Wang JL, Di DW, Luo P, Zhang L, Li XF, Guo GQ, Wu L. The roles of epigenetic modifications in the regulation of auxin biosynthesis. FRONTIERS IN PLANT SCIENCE 2022; 13:959053. [PMID: 36017262 PMCID: PMC9396225 DOI: 10.3389/fpls.2022.959053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/15/2022] [Indexed: 06/01/2023]
Abstract
Auxin is one of the most important plant growth regulators of plant morphogenesis and response to environmental stimuli. Although the biosynthesis pathway of auxin has been elucidated, the mechanisms regulating auxin biosynthesis remain poorly understood. The transcription of auxin biosynthetic genes is precisely regulated by complex signaling pathways. When the genes are expressed, epigenetic modifications guide mRNA synthesis and therefore determine protein production. Recent studies have shown that different epigenetic factors affect the transcription of auxin biosynthetic genes. In this review, we focus our attention on the molecular mechanisms through which epigenetic modifications regulate auxin biosynthesis.
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Affiliation(s)
- Jun-Li Wang
- Ministry of Education (MOE) Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
- Gansu Province Key Laboratory of Gene Editing for Breeding, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Dong-Wei Di
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Pan Luo
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Li Zhang
- Basic Forestry and Proteomics Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xiao-Feng Li
- Ministry of Education (MOE) Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
- Gansu Province Key Laboratory of Gene Editing for Breeding, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Guang-Qin Guo
- Ministry of Education (MOE) Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
- Gansu Province Key Laboratory of Gene Editing for Breeding, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Lei Wu
- Ministry of Education (MOE) Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
- Gansu Province Key Laboratory of Gene Editing for Breeding, School of Life Sciences, Lanzhou University, Lanzhou, China
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15
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Kubo T, Yoshimura A, Kurata N. Loss of OsEAF6, a Subunit of the Histone Acetyltransferase Complex, Causes Hybrid Breakdown in Intersubspecific Rice Crosses. FRONTIERS IN PLANT SCIENCE 2022; 13:866404. [PMID: 35350298 PMCID: PMC8957887 DOI: 10.3389/fpls.2022.866404] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Gene duplication plays an important role in genetic diversification, adaptive evolution, and speciation. Understanding the mechanisms and effects of postzygotic isolation genes is important for further studies of speciation and crop breeding. The duplicate recessive genes hwe1 and hwe2 cause hybrid breakdown, characterized by poor vegetative growth and reproductive dysgenesis in intersubspecific crosses between Oryza sativa ssp. indica and japonica. Using a map-based cloning strategy, we found that HWE1 and HWE2 encode the Esa1-associated factor 6 (EAF6) protein, a component of histone acetyltransferase complexes. The indica hwe1 and japonica hwe2 alleles lacked functional EAF6, demonstrating that the double recessive homozygote causes hybrid breakdown. Morphological and physiological observations showed that weak plants with double recessive homozygotes had serious morphological defects with a wide range of effects on development and organs, leading to leaves with reduced chlorophyll content, flower and pistil malformation, and anomalies of gametogenesis. These findings suggest that EAF6 plays a pivotal role in the transcriptional regulation of essential genes during the vegetative and reproductive development of rice.
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Affiliation(s)
- Takahiko Kubo
- Plant Genetics Laboratory, National Institute of Genetics, Mishima, Japan
| | - Atsushi Yoshimura
- Plant Breeding Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Nori Kurata
- Plant Genetics Laboratory, National Institute of Genetics, Mishima, Japan
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