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Lu Y, Wang K, Ngea GLN, Godana EA, Ackah M, Dhanasekaran S, Zhang Y, Su Y, Yang Q, Zhang H. Recent advances in the multifaceted functions of Cys2/His2-type zinc finger proteins in plant growth, development, and stress responses. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:5501-5520. [PMID: 38912636 DOI: 10.1093/jxb/erae278] [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: 12/26/2023] [Accepted: 06/21/2024] [Indexed: 06/25/2024]
Abstract
Recent research has highlighted the importance of Cys2/His2-type zinc finger proteins (C2H2-ZFPs) in plant growth and in responses to various stressors, and the complex structures of C2H2-ZFP networks and the molecular mechanisms underlying their responses to stress have received considerable attention. Here, we review the structural characteristics and classification of C2H2-ZFPs, and consider recent research advances in their functions. We systematically introduce the roles of these proteins across diverse aspects of plant biology, encompassing growth and development, and responses to biotic and abiotic stresses, and in doing so hope to lay the foundations for further functional studies of C2H2-ZFPs in the future.
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Affiliation(s)
- Yuchun Lu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Kaili Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | | | - Esa Abiso Godana
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Michael Ackah
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Solairaj Dhanasekaran
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Yu Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Yingying Su
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Qiya Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Hongyin Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China
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Benyó D, Bató E, Faragó D, Rigó G, Domonkos I, Labhane N, Zsigmond L, Prasad M, Nagy I, Szabados L. The zinc finger protein 3 of Arabidopsis thaliana regulates vegetative growth and root hair development. FRONTIERS IN PLANT SCIENCE 2024; 14:1221519. [PMID: 38250442 PMCID: PMC10796524 DOI: 10.3389/fpls.2023.1221519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/07/2023] [Indexed: 01/23/2024]
Abstract
Introduction Zinc finger protein 3 (ZFP3) and closely related C2H2 zinc finger proteins have been identified as regulators of abscisic acid signals and photomorphogenic responses during germination. Whether ZFP3 and related ZFP factors regulate plant development is, however, not known. Results ZFP3 overexpression reduced plant growth, limited cell expansion in leaves, and compromised root hair development. The T-DNA insertion zfp3 mutant and transgenic lines with silenced ZFP1, ZFP3, ZFP4, and ZFP7 genes were similar to wild-type plants or had only minor differences in plant growth and morphology, probably due to functional redundancy. RNAseq transcript profiling identified ZFP3-controlled gene sets, including targets of ABA signaling with reduced transcript abundance. The largest gene set that was downregulated by ZFP3 encoded regulatory and structural proteins in cell wall biogenesis, cell differentiation, and root hair formation. Chromatin immunoprecipitation confirmed ZFP3 binding to several target promoters. Discussion Our results suggest that ZFP3 and related ZnF proteins can modulate cellular differentiation and plant vegetative development by regulating the expression of genes implicated in cell wall biogenesis.
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Affiliation(s)
- Dániel Benyó
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Emese Bató
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Dóra Faragó
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Gábor Rigó
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Ildikó Domonkos
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Nitin Labhane
- Department of Botany, Bhavan’s College, Mumbai, Maharashtra, India
| | - Laura Zsigmond
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Melvin Prasad
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - István Nagy
- Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
- SeqOmics Biotechnology Ltd, Mórahalom, Hungary
| | - László Szabados
- Instiute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
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Bogomolov A, Zolotareva K, Filonov S, Chadaeva I, Rasskazov D, Sharypova E, Podkolodnyy N, Ponomarenko P, Savinkova L, Tverdokhleb N, Khandaev B, Kondratyuk E, Podkolodnaya O, Zemlyanskaya E, Kolchanov NA, Ponomarenko M. AtSNP_TATAdb: Candidate Molecular Markers of Plant Advantages Related to Single Nucleotide Polymorphisms within Proximal Promoters of Arabidopsis thaliana L. Int J Mol Sci 2024; 25:607. [PMID: 38203780 PMCID: PMC10779315 DOI: 10.3390/ijms25010607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/18/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
The mainstream of the post-genome target-assisted breeding in crop plant species includes biofortification such as high-throughput phenotyping along with genome-based selection. Therefore, in this work, we used the Web-service Plant_SNP_TATA_Z-tester, which we have previously developed, to run a uniform in silico analysis of the transcriptional alterations of 54,013 protein-coding transcripts from 32,833 Arabidopsis thaliana L. genes caused by 871,707 SNPs located in the proximal promoter region. The analysis identified 54,993 SNPs as significantly decreasing or increasing gene expression through changes in TATA-binding protein affinity to the promoters. The existence of these SNPs in highly conserved proximal promoters may be explained as intraspecific diversity kept by the stabilizing natural selection. To support this, we hand-annotated papers on some of the Arabidopsis genes possessing these SNPs or on their orthologs in other plant species and demonstrated the effects of changes in these gene expressions on plant vital traits. We integrated in silico estimates of the TBP-promoter affinity in the AtSNP_TATAdb knowledge base and showed their significant correlations with independent in vivo experimental data. These correlations appeared to be robust to variations in statistical criteria, genomic environment of TATA box regions, plants species and growing conditions.
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Affiliation(s)
- Anton Bogomolov
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Karina Zolotareva
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Sergey Filonov
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
- Natural Science Department, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Irina Chadaeva
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Dmitry Rasskazov
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Ekaterina Sharypova
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Nikolay Podkolodnyy
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
- Institute of Computational Mathematics and Mathematical Geophysics, Novosibirsk 630090, Russia
| | - Petr Ponomarenko
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Ludmila Savinkova
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Natalya Tverdokhleb
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Bato Khandaev
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
- Natural Science Department, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Ekaterina Kondratyuk
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
- Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences, Krasnoobsk 630501, Novosibirsk Region, Russia
| | - Olga Podkolodnaya
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
| | - Elena Zemlyanskaya
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
- Natural Science Department, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Nikolay A. Kolchanov
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
- Natural Science Department, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Mikhail Ponomarenko
- Institute of Cytology and Genetics, Novosibirsk 630090, Russia; (A.B.); (K.Z.); (S.F.); (I.C.); (D.R.); (E.S.); (N.P.); (P.P.); (L.S.); (N.T.); (B.K.); (E.K.); (O.P.); (E.Z.); (N.A.K.)
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Segura M, García A, Benítez Á, Martínez C, Jamilena M. Comparative RNA-Seq Analysis between Monoecious and Androecious Plants Reveals Regulatory Mechanisms Controlling Female Flowering in Cucurbita pepo. Int J Mol Sci 2023; 24:17195. [PMID: 38139023 PMCID: PMC10743737 DOI: 10.3390/ijms242417195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
In the monoecious Cucurbita pepo, the transition to female flowering is the time at which the plant starts the production of female flowers after an initial male phase of development. Ethylene plays an essential role in this process since some ethylene deficient and ethylene-insensitive mutants are androecious and only produce male flowers. To gain insight into the molecular mechanisms regulating the specification and early development of female flowers, we have compared the transcriptomic changes occurring in the shoot apices of WT and androecious ethylene-insensitive etr1b mutant plants upon female flowering transition. There were 1160 female flowering-specific DEGs identified in WT plants upon female flowering, and 284 of them were found to be modulated by the ethylene-insensitive etr1b mutation. The function of these DEGs indicated that female flower specification depends on the adoption of a transcriptional program that includes previously identified sex-determining genes in the ethylene pathway, but also genes controlling the biosynthesis and signaling pathways of other phytohormones, and those encoding for many different transcription factors. The transcriptomic changes suggested that gibberellins play a negative role in female flowering, while ethylene, auxins, ABA and cytokinins are positive regulators. Transcription factors from 34 families, including NAC, ERF, bHLH, bZIP, MYB and C2H2/CH3, were found to be regulating female flowering in an ethylene-dependent or -independent manner. Our data open a new perspective of the molecular mechanisms that control the specification and development of female flowers in C. pepo.
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Affiliation(s)
| | | | | | - Cecilia Martínez
- Department of Biology and Geology, Agri-Food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120 Almería, Spain; (M.S.); (A.G.); (Á.B.)
| | - Manuel Jamilena
- Department of Biology and Geology, Agri-Food Campus of International Excellence (CeiA3) and Research Center CIAIMBITAL, University of Almería, 04120 Almería, Spain; (M.S.); (A.G.); (Á.B.)
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Zhang M, Zhou E, Li M, Tian S, Xiao H. A SUPERMAN-like Gene Controls the Locule Number of Tomato Fruit. PLANTS (BASEL, SWITZERLAND) 2023; 12:3341. [PMID: 37765505 PMCID: PMC10535046 DOI: 10.3390/plants12183341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
Tomato (Solanum lycopersicum) fruits are derived from fertilized ovaries formed during flower development. Thus, fruit morphology is tightly linked to carpel number and identity. The SUPERMAN (SUP) gene is a key transcription repressor to define the stamen-carpel boundary and to control floral meristem determinacy. Despite SUP functions having been characterized in a few plant species, its functions have not yet been explored in tomato. In this study, we identified and characterized a fascinated and multi-locule fruit (fmf) mutant in Solanum pimpinellifolium background harboring a nonsense mutation in the coding sequence of a zinc finger gene orthologous to SUP. The fmf mutant produces supersex flowers containing increased numbers of stamens and carpels and sets malformed seedless fruits with complete flowers frequently formed on the distal end. fmf alleles in cultivated tomato background created by CRISPR-Cas9 showed similar floral and fruit phenotypes. Our results provide insight into the functional conservation and diversification of SUP members in different species. We also speculate the FMF gene may be a potential target for yield improvement in tomato by genetic engineering.
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Affiliation(s)
- Mi Zhang
- University of Chinese Academy of Sciences, 19A Yuquan Rd, Beijing 100049, China; (M.Z.); (E.Z.); (S.T.)
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Rd., Shanghai 200032, China;
| | - Enbai Zhou
- University of Chinese Academy of Sciences, 19A Yuquan Rd, Beijing 100049, China; (M.Z.); (E.Z.); (S.T.)
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Rd., Shanghai 200032, China;
| | - Meng Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Rd., Shanghai 200032, China;
| | - Shenglan Tian
- University of Chinese Academy of Sciences, 19A Yuquan Rd, Beijing 100049, China; (M.Z.); (E.Z.); (S.T.)
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Rd., Shanghai 200032, China;
| | - Han Xiao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Rd., Shanghai 200032, China;
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Lavagi-Craddock I, Dang T, Comstock S, Osman F, Bodaghi S, Vidalakis G. Transcriptome Analysis of Citrus Dwarfing Viroid Induced Dwarfing Phenotype of Sweet Orange on Trifoliate Orange Rootstock. Microorganisms 2022; 10:microorganisms10061144. [PMID: 35744662 PMCID: PMC9228058 DOI: 10.3390/microorganisms10061144] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/25/2022] [Accepted: 05/30/2022] [Indexed: 01/27/2023] Open
Abstract
Dwarfed citrus trees for high-density plantings or mechanized production systems will be key for future sustainable citrus production. Citrus trees consist of two different species of scion and rootstock. Therefore, any observed phenotype results from gene expression in both species. Dwarfed sweet orange trees on trifoliate rootstock have been produced using citrus dwarfing viroid (CDVd). We performed RNA-seq transcriptome analysis of CDVd-infected stems and roots and compared them to non-infected controls. The identified differentially expressed genes validated with RT-qPCR corresponded to various physiological and developmental processes that could be associated with the dwarfing phenotype. For example, the transcription factors MYB13 and MADS-box, which regulate meristem functions and activate stress responses, were upregulated in the stems. Conversely, a calcium-dependent lipid-binding protein that regulates membrane transporters was downregulated in the roots. Most transcriptome reprogramming occurred in the scion rather than in the rootstock; this agrees with previous observations of CDVd affecting the growth of sweet orange stems while not affecting the trifoliate rootstock. Furthermore, the lack of alterations in the pathogen defense transcriptome supports the term “Transmissible small nuclear ribonucleic acid,” which describes CDVd as a modifying agent of tree performance with desirable agronomic traits rather than a disease-causing pathogen.
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Affiliation(s)
- Irene Lavagi-Craddock
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Tyler Dang
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Stacey Comstock
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Fatima Osman
- Department of Plant Pathology, University of California, Davis, CA 95616, USA;
| | - Sohrab Bodaghi
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
| | - Georgios Vidalakis
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (I.L.-C.); (T.D.); (S.C.); (S.B.)
- Correspondence:
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Bai G, Yang DH, Cao P, Yao H, Zhang Y, Chen X, Xiao B, Li F, Wang ZY, Yang J, Xie H. Genome-Wide Identification, Gene Structure and Expression Analysis of the MADS-Box Gene Family Indicate Their Function in the Development of Tobacco ( Nicotiana tabacum L.). Int J Mol Sci 2019; 20:E5043. [PMID: 31614589 PMCID: PMC6829366 DOI: 10.3390/ijms20205043] [Citation(s) in RCA: 15] [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: 07/12/2019] [Revised: 10/06/2019] [Accepted: 10/09/2019] [Indexed: 12/14/2022] Open
Abstract
MADS-box genes play a pivotal role in various processes, including floral and seed development, controlling flowering time, regulation of fruits ripening, and respond to abiotic and biotic stressors in planta. Tobacco (Nicotiana tabacum) has been widely used as a model plant for analyzing the gene function, however, there has been less information on the regulation of flowering, and the associated genes. In the present study, a total of 168 NtMADS-box genes were identified from tobacco, and their phylogenetic relationship, chromosome locations, and gene structures were further analyzed. NtMADS-box genes can be clustered into four sub-families of Mα, Mγ, MIKC*, and MIKCC. A total of 111 NtMADS-box genes were distributed on 20 chromosomes, and 57 NtMADS-box genes were located on the unanchored scaffolds due to the complex and incomplete assembly of the tobacco genome. Expression profiles of NtMADS-box genes by microarray from 23 different tissues indicated that members in different NtMADS-box gene subfamilies might play specific roles in the growth and flower development, and the transcript levels of 24 NtMADS-box genes were confirmed by quantitative real-time PCR. Importantly, overexpressed NtSOC1/NtMADS133 could promote early flowering and dwarfism in transgenic tobacco plants. Therefore, our findings provide insights on the characterization of NtMADS-box genes to further study their functions in plant development.
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Affiliation(s)
- Ge Bai
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
| | - Da-Hai Yang
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
| | - Peijian Cao
- China Tobacco Gene Research Centre, Zhengzhou Tobacco Research Institute, Zhengzhou, 450001, China.
| | - Heng Yao
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
| | - Yihan Zhang
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
| | - Xuejun Chen
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
| | - Bingguang Xiao
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
| | - Feng Li
- China Tobacco Gene Research Centre, Zhengzhou Tobacco Research Institute, Zhengzhou, 450001, China.
| | - Zhen-Yu Wang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China.
| | - Jun Yang
- China Tobacco Gene Research Centre, Zhengzhou Tobacco Research Institute, Zhengzhou, 450001, China.
| | - He Xie
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
- Key Laboratory of Tobacco Biotechnological Breeding, Kunming, 650021, China.
- National Tobacco Genetic Engineering Research Center, Kunming, 650021, China.
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The Roles of Arabidopsis C1-2i Subclass of C2H2-type Zinc-Finger Transcription Factors. Genes (Basel) 2019; 10:genes10090653. [PMID: 31466344 PMCID: PMC6770587 DOI: 10.3390/genes10090653] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/19/2019] [Accepted: 08/27/2019] [Indexed: 01/07/2023] Open
Abstract
The Cys2His2 (C2H2)-type zinc-finger protein (ZFP) family, which includes 176 members in Arabidopsis thaliana, is one of the largest families of putative transcription factors in plants. Of the Arabidopsis ZFP members, only 33 members are conserved in other eukaryotes, with 143 considered to be plant specific. C2H2-type ZFPs have been extensively studied and have been shown to play important roles in plant development and environmental stress responses by transcriptional regulation. The ethylene-responsive element binding-factor-associated amphiphilic repression (EAR) domain (GCC box) has been found to have a critical role in the tolerance response to abiotic stress. Many of the plant ZFPs containing the EAR domain, such as AZF1/2/3, ZAT7, ZAT10, and ZAT12, have been shown to function as transcriptional repressors. In this review, we mainly focus on the C1-2i subclass of C2H2 ZFPs and summarize the latest research into their roles in various stress responses. The role of C2H2-type ZFPs in response to the abiotic and biotic stress signaling network is not well explained, and amongst them, C1-2i is one of the better-characterized classifications in response to environmental stresses. These studies of the C1-2i subclass ought to furnish the basis for future studies to discover the pathways and receptors concerned in stress defense. Research has implied possible protein-protein interactions between members of C1-2i under various stresses, for which we have proposed a hypothetical model.
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Shi X, Wu Y, Dai T, Gu Y, Wang L, Qin X, Xu Y, Chen F. JcZFP8 , a C2H2 zinc finger protein gene from Jatropha curcas , influences plant development in transgenic tobacco. ELECTRON J BIOTECHN 2018. [DOI: 10.1016/j.ejbt.2018.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Xu K, Wang L, Liu N, Xie X, Zhu Y. Characterization of a SUPERMAN-like Gene, MdSUP11, in apple (Malus × domestica Borkh.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 125:136-142. [PMID: 29448155 DOI: 10.1016/j.plaphy.2017.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 12/03/2017] [Accepted: 12/03/2017] [Indexed: 06/08/2023]
Abstract
Arabidopsis SUPERMAN and its family members of its family play important roles in plant growth and floral organ development; yet much less is known about their functions expanding in apple tree development. Previous work has identified 12 SUP-like genes in the apple (Malus × domestica Borkh.) genome, and the MdSUP11 which is expressed in both vegetative and reproductive organs of apple. However, the function of MdSUP11 remains obscure. In this study, the β-glucuronidase expression driven by the MdSUP11 native promoter was detected in roots, young leaves, and floral organs of transgenic Arabidopsis. In transgenic tobacco, overexpression of MdSUP11 lead to dwarfism, aberrant leaf shapes, and morphological changes of floral organs. Endogenous concentrations of auxin (indole-3-acetic acid), abscisic acid, isopentenyl adenosine and zeatin riboside were significantly higher in young MdSUP11-transformed tobacco plants than in non-transformed plants. Gene expression analysis using real-time quantitative PCR showed up-regulation of NtDFR2 and NtANS1 expression in unopened transgenic flowers, whereas NtCHS expression was not changed significantly. Together, these results suggest that MdSUP11 is associated with apple's vegetative and reproductive development. Its overexpression in tobacco affects leaf and flower organ development and plant height; potentially by changing NtDFR2 and NtANS1 expression and endogenous levels of indole-3-acetic acid, cytokinins and abscisic acid.
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Affiliation(s)
- Ke Xu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, PR China.
| | - LiMin Wang
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, PR China.
| | - Na Liu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, PR China.
| | - Xuan Xie
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, PR China.
| | - YuanDi Zhu
- Department of Pomology, College of Horticulture, China Agricultural University, Yuanmingyuan West Road No. 2, Haidian District, Beijing 100193, PR China.
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Li J, Zhang J, Jia H, Liu B, Sun P, Hu J, Wang L, Lu M. The WUSCHEL-related homeobox 5a (PtoWOX5a) is involved in adventitious root development in poplar. TREE PHYSIOLOGY 2018; 38:139-153. [PMID: 29036435 DOI: 10.1093/treephys/tpx118] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 08/31/2017] [Indexed: 05/24/2023]
Abstract
Adventitious rooting is an essential step in vegetative propagation. Currently, the mechanism that regulates adventitious root (AR) development in woody plants is poorly understood. This work demonstrates that Populus tomentosa WUSCHEL-related homeobox 5a (PtoWOX5a) transcription factor is involved in AR development in poplar. PtoWOX5a was specifically expressed in the AR tip and lateral root tip during AR and lateral root regeneration from the stem segment. Phenotypic complementation experiments indicated that the PtoWOX5a can functionally complement AtWOX5 in quiescent center (QC) cells. Overexpression of PtoWOX5a introduces significant developmental phenotypes in roots and leaves, such as increased AR number, decreased AR length, swollen AR tip and lateral root tip, and decreased leaf number and area. The conserved mechanism of D-type cyclins (CYCD) repression mediated by WOX5 was confirmed in poplar. The co-expression network of PtWOX5a was constructed, which provided clues to reveal the molecular mechanism of PtoWOX5a in AR development in poplar. Taken together, our results suggest that the PtoWOX5a is involved in AR development though cooperating with a series of functional genes.
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Affiliation(s)
- Jianbo Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
- Experimental Center of Forestry in North China, Chinese Academy of Forestry, Beijing 100091, China
| | - Jin Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Huixia Jia
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Bobin Liu
- Basic Forestry and Proteomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350000, China
| | - Pei Sun
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Jianjun Hu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Lijuan Wang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Mengzhu Lu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
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Malgieri G, Palmieri M, Russo L, Fattorusso R, Pedone PV, Isernia C. The prokaryotic zinc-finger: structure, function and comparison with the eukaryotic counterpart. FEBS J 2015; 282:4480-96. [PMID: 26365095 DOI: 10.1111/febs.13503] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/23/2015] [Accepted: 08/24/2015] [Indexed: 01/18/2023]
Abstract
Classical zinc finger (ZF) domains were thought to be confined to the eukaryotic kingdom until the transcriptional regulator Ros protein was identified in Agrobacterium tumefaciens. The Ros Cys2 His2 ZF binds DNA in a peculiar mode and folds in a domain significantly larger than its eukaryotic counterpart consisting of 58 amino acids (the 9-66 region) arranged in a βββαα topology, and stabilized by a conserved, extensive, 15-residue hydrophobic core. The prokaryotic ZF domain, then, shows some intriguing new features that make it interestingly different from its eukaryotic counterpart. This review will focus on the prokaryotic ZFs, summarizing and discussing differences and analogies with the eukaryotic domains and providing important insights into their structure/function relationships.
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Affiliation(s)
- Gaetano Malgieri
- Department of Environmental, Biological and Pharmaceutical Science and Technology, II University of Naples, Caserta, Italy
| | - Maddalena Palmieri
- Department of Environmental, Biological and Pharmaceutical Science and Technology, II University of Naples, Caserta, Italy
| | - Luigi Russo
- Department of Environmental, Biological and Pharmaceutical Science and Technology, II University of Naples, Caserta, Italy
| | - Roberto Fattorusso
- Department of Environmental, Biological and Pharmaceutical Science and Technology, II University of Naples, Caserta, Italy.,Interuniversity Research Centre on Bioactive Peptides, University of Naples 'Federico II', Naples, Italy
| | - Paolo V Pedone
- Department of Environmental, Biological and Pharmaceutical Science and Technology, II University of Naples, Caserta, Italy.,Interuniversity Research Centre on Bioactive Peptides, University of Naples 'Federico II', Naples, Italy
| | - Carla Isernia
- Department of Environmental, Biological and Pharmaceutical Science and Technology, II University of Naples, Caserta, Italy.,Interuniversity Research Centre on Bioactive Peptides, University of Naples 'Federico II', Naples, Italy
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Joseph MP, Papdi C, Kozma-Bognár L, Nagy I, López-Carbonell M, Rigó G, Koncz C, Szabados L. The Arabidopsis ZINC FINGER PROTEIN3 Interferes with Abscisic Acid and Light Signaling in Seed Germination and Plant Development. PLANT PHYSIOLOGY 2014; 165:1203-1220. [PMID: 24808098 PMCID: PMC4081332 DOI: 10.1104/pp.113.234294] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 05/04/2014] [Indexed: 05/18/2023]
Abstract
Seed germination is controlled by environmental signals, including light and endogenous phytohormones. Abscisic acid (ABA) inhibits, whereas gibberellin promotes, germination and early seedling development, respectively. Here, we report that ZFP3, a nuclear C2H2 zinc finger protein, acts as a negative regulator of ABA suppression of seed germination in Arabidopsis (Arabidopsis thaliana). Accordingly, regulated overexpression of ZFP3 and the closely related ZFP1, ZFP4, ZFP6, and ZFP7 zinc finger factors confers ABA insensitivity to seed germination, while the zfp3 zfp4 double mutant displays enhanced ABA susceptibility. Reduced expression of several ABA-induced genes, such as RESPONSIVE TO ABSCISIC ACID18 and transcription factor ABSCISIC ACID-INSENSITIVE4 (ABI4), in ZFP3 overexpression seedlings suggests that ZFP3 negatively regulates ABA signaling. Analysis of ZFP3 overexpression plants revealed multiple phenotypic alterations, such as semidwarf growth habit, defects in fertility, and enhanced sensitivity of hypocotyl elongation to red but not to far-red or blue light. Analysis of genetic interactions with phytochrome and abi mutants indicates that ZFP3 enhances red light signaling by photoreceptors other than phytochrome A and additively increases ABA insensitivity conferred by the abi2, abi4, and abi5 mutations. These data support the conclusion that ZFP3 and the related ZFP subfamily of zinc finger factors regulate light and ABA responses during germination and early seedling development.
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Affiliation(s)
- Mary Prathiba Joseph
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - Csaba Papdi
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - László Kozma-Bognár
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - István Nagy
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - Marta López-Carbonell
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - Gábor Rigó
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - Csaba Koncz
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
| | - László Szabados
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary (M.P.J., C.P., L.K.-B., I.N., G.R., C.K., L.S.);Department of Plant Biology, University of Barcelona, 08028 Barcelona, Spain (M.L.-C.);Max-Planck-Institut für Züchtungsforschung, 50829 Cologne, Germany (C.K.); andRoyal Holloway, University of London, Surrey TW20 0EX, United Kingdom (C.P.)
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Hichri I, Muhovski Y, Žižková E, Dobrev PI, Franco-Zorrilla JM, Solano R, Lopez-Vidriero I, Motyka V, Lutts S. The Solanum lycopersicum Zinc Finger2 cysteine-2/histidine-2 repressor-like transcription factor regulates development and tolerance to salinity in tomato and Arabidopsis. PLANT PHYSIOLOGY 2014; 164:1967-90. [PMID: 24567191 PMCID: PMC3982756 DOI: 10.1104/pp.113.225920] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 02/19/2014] [Indexed: 05/07/2023]
Abstract
The zinc finger superfamily includes transcription factors that regulate multiple aspects of plant development and were recently shown to regulate abiotic stress tolerance. Cultivated tomato (Solanum lycopersicum Zinc Finger2 [SIZF2]) is a cysteine-2/histidine-2-type zinc finger transcription factor bearing an ERF-associated amphiphilic repression domain and binding to the ACGTCAGTG sequence containing two AGT core motifs. SlZF2 is ubiquitously expressed during plant development, and is rapidly induced by sodium chloride, drought, and potassium chloride treatments. Its ectopic expression in Arabidopsis (Arabidopsis thaliana) and tomato impaired development and influenced leaf and flower shape, while causing a general stress visible by anthocyanin and malonyldialdehyde accumulation. SlZF2 enhanced salt sensitivity in Arabidopsis, whereas SlZF2 delayed senescence and improved tomato salt tolerance, particularly by maintaining photosynthesis and increasing polyamine biosynthesis, in salt-treated hydroponic cultures (125 mm sodium chloride, 20 d). SlZF2 may be involved in abscisic acid (ABA) biosynthesis/signaling, because SlZF2 is rapidly induced by ABA treatment and 35S::SlZF2 tomatoes accumulate more ABA than wild-type plants. Transcriptome analysis of 35S::SlZF2 revealed that SlZF2 both increased and reduced expression of a comparable number of genes involved in various physiological processes such as photosynthesis, polyamine biosynthesis, and hormone (notably ABA) biosynthesis/signaling. Involvement of these different metabolic pathways in salt stress tolerance is discussed.
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Affiliation(s)
- Imène Hichri
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Yordan Muhovski
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Eva Žižková
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Petre I. Dobrev
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Jose Manuel Franco-Zorrilla
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Roberto Solano
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Irene Lopez-Vidriero
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
| | - Vaclav Motyka
- Groupe de Recherche en Physiologie Végétale, Earth and Life Institute-Agronomy, Université Catholique de Louvain, B–1348 Louvain-la-Neuve, Belgium (I.H., S.L.)
- Département Sciences du Vivant, Centre Wallon de Recherches Agronomiques, B–5030 Gembloux, Belgium (Y.M.)
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02 Prague 6, Czech Republic (E.Z., P.I.D., V.M.)
- and Genomics Unit (J.M.F-Z., I.L.-V.) and Departamento de Genética Molecular de Plantas (R.S.), Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, Spain
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Liu QL, Xu KD, Ma N, Zhao LJ, Xi L. Overexpression of a novel chrysanthemum SUPERMAN-like gene in tobacco affects lateral bud outgrowth and flower organ development. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 77:1-6. [PMID: 24509006 DOI: 10.1016/j.plaphy.2014.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 01/20/2014] [Indexed: 06/03/2023]
Abstract
Previous studies have shown that the SUP genes play important roles in flower development and plant growth and morphogenesis. In this study, we isolated and characterized a SUPERMAN-like gene DgSZFP from chrysanthemum. DgSZFP contains one conserved Cys2/His2-type zinc finger motifs in the N-terminal region and an EAR-box in C-terminus. Its expression was significantly higher in nodes, flower buds, disc stamens, and petals than in the other tissues. Overexpression of DgSZFP in tobacco resulted in enhanced branching, reduced plant height, increased the width of petal tubes, produced the staminoid petals and petaloid stamens in flowers, and enhanced the seed weight and size. In addition, DgSZFP-overexpression tobacco plants accumulated high concentrations of cytokinin and chlorophyll. These results suggest that DgSZFP may be the candidate gene for regulating branching and floral organ development in chrysanthemum.
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Affiliation(s)
- Qing-Lin Liu
- Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, PR China; Department of Ornamental Horticulture, Sichuan Agricultural University, 555 Northeast Road, Wenjiang District, Chengdu, Sichuan 611130, PR China.
| | - Ke-Dong Xu
- Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, PR China; Key Lab of Plant Genetics & Molecular Breeding of Department of Life Science, Zhoukou Normal University, East Wenchang Street, Chuanhui District, Zhoukou, Henan 466001, PR China
| | - Nan Ma
- Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, PR China
| | - Liang-Jun Zhao
- Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, PR China.
| | - Lin Xi
- Department of Ornamental Horticulture and Landscape Architecture, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, PR China
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Singh A, Giri J, Kapoor S, Tyagi AK, Pandey GK. Protein phosphatase complement in rice: genome-wide identification and transcriptional analysis under abiotic stress conditions and reproductive development. BMC Genomics 2010. [PMID: 20637108 DOI: 10.1186/1471–2164–11-435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Protein phosphatases are the key components of a number of signaling pathways where they modulate various cellular responses. In plants, protein phosphatases constitute a large gene family and are reportedly involved in the regulation of abiotic stress responses and plant development. Recently, the whole complement of protein phosphatases has been identified in Arabidopsis genome. While PP2C class of serine/threonine phosphatases has been explored in rice, the whole complement of this gene family is yet to be reported. RESULTS In silico investigation revealed the presence of 132-protein phosphatase-coding genes in rice genome. Domain analysis and phylogenetic studies of evolutionary relationship categorized these genes into PP2A, PP2C, PTP, DSP and LMWP classes. PP2C class represents a major proportion of this gene family with 90 members. Chromosomal localization revealed their distribution on all the 12 chromosomes, with 42 genes being present on segmentally duplicated regions and 10 genes on tandemly duplicated regions of chromosomes. The expression profiles of 128 genes under salinity, cold and drought stress conditions, 11 reproductive developmental (panicle and seed) stages along with three stages of vegetative development were analyzed using microarray expression data. 46 genes were found to be differentially expressing in 3 abiotic stresses out of which 31 were up-regulated and 15 exhibited down-regulation. A total of 82 genes were found to be differentially expressing in different developmental stages. An overlapping expression pattern was found for abiotic stresses and reproductive development, wherein 8 genes were up-regulated and 7 down-regulated. Expression pattern of the 13 selected genes was validated employing real time PCR, and it was found to be in accordance with the microarray expression data for most of the genes. CONCLUSIONS Exploration of protein phosphatase gene family in rice has resulted in the identification of 132 members, which can be further divided into different classes phylogenetically. Expression profiling and analysis indicate the involvement of this large gene family in a number of signaling pathways triggered by abiotic stresses and their possible role in plant development. Our study will provide the platform from where; the expression pattern information can be transformed into molecular, cellular and biochemical characterization of members belonging to this gene family.
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Affiliation(s)
- Amarjeet Singh
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi-110021, India
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Singh A, Giri J, Kapoor S, Tyagi AK, Pandey GK. Protein phosphatase complement in rice: genome-wide identification and transcriptional analysis under abiotic stress conditions and reproductive development. BMC Genomics 2010; 11:435. [PMID: 20637108 PMCID: PMC3091634 DOI: 10.1186/1471-2164-11-435] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Accepted: 07/16/2010] [Indexed: 11/12/2022] Open
Abstract
Background Protein phosphatases are the key components of a number of signaling pathways where they modulate various cellular responses. In plants, protein phosphatases constitute a large gene family and are reportedly involved in the regulation of abiotic stress responses and plant development. Recently, the whole complement of protein phosphatases has been identified in Arabidopsis genome. While PP2C class of serine/threonine phosphatases has been explored in rice, the whole complement of this gene family is yet to be reported. Results In silico investigation revealed the presence of 132-protein phosphatase-coding genes in rice genome. Domain analysis and phylogenetic studies of evolutionary relationship categorized these genes into PP2A, PP2C, PTP, DSP and LMWP classes. PP2C class represents a major proportion of this gene family with 90 members. Chromosomal localization revealed their distribution on all the 12 chromosomes, with 42 genes being present on segmentally duplicated regions and 10 genes on tandemly duplicated regions of chromosomes. The expression profiles of 128 genes under salinity, cold and drought stress conditions, 11 reproductive developmental (panicle and seed) stages along with three stages of vegetative development were analyzed using microarray expression data. 46 genes were found to be differentially expressing in 3 abiotic stresses out of which 31 were up-regulated and 15 exhibited down-regulation. A total of 82 genes were found to be differentially expressing in different developmental stages. An overlapping expression pattern was found for abiotic stresses and reproductive development, wherein 8 genes were up-regulated and 7 down-regulated. Expression pattern of the 13 selected genes was validated employing real time PCR, and it was found to be in accordance with the microarray expression data for most of the genes. Conclusions Exploration of protein phosphatase gene family in rice has resulted in the identification of 132 members, which can be further divided into different classes phylogenetically. Expression profiling and analysis indicate the involvement of this large gene family in a number of signaling pathways triggered by abiotic stresses and their possible role in plant development. Our study will provide the platform from where; the expression pattern information can be transformed into molecular, cellular and biochemical characterization of members belonging to this gene family.
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Affiliation(s)
- Amarjeet Singh
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi-110021, India
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Huai J, Wang M, He J, Zheng J, Dong Z, Lv H, Zhao J, Wang G. Cloning and characterization of the SnRK2 gene family from Zea mays. PLANT CELL REPORTS 2008; 27:1861-8. [PMID: 18797872 DOI: 10.1007/s00299-008-0608-8] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Revised: 07/29/2008] [Accepted: 08/29/2008] [Indexed: 05/19/2023]
Abstract
The SnRK2 gene family is a group of plant-specific protein kinases that has been implicated in ABA and abiotic stress signaling. We found 11 SnRK2s in maize, assigned names from ZmSnRK2.1 to ZmSnRK2.11 and cloned ten of them. By analyzing the gene structure of all the SnRK2s from Arabidopsis, rice, and maize, we found seven exons that were conserved in length among most of the SnRK2s. Although the C-terminus was divergent, we found seven conserved motifs. Of these, motif 1 was common to all of the SnRK2 genes. Based on phylogenetic analysis using the kinase domain and motif 1, the SnRK2s were divided into three groups. Motifs 4 and 5 were found specifically in group I, and many genes of this group have been confirmed to be induced by ABA. This result suggests that these two motifs mediate the ABA response. The expression patterns of ZmSnRK2 genes were characterized by using quantitative real-time RCR, which revealed that ZmSnRK2 genes were induced by one or more abiotic stress treatments and therefore may play important roles in maize stress responses.
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Affiliation(s)
- Junling Huai
- State Key Laboratory of Agrobiotecnology, China Agricultural University, 100094 Beijing, China
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Jiang CJ, Aono M, Tamaoki M, Maeda S, Sugano S, Mori M, Takatsuji H. SAZ, a new SUPERMAN-like protein, negatively regulates a subset of ABA-responsive genes in Arabidopsis. Mol Genet Genomics 2007; 279:183-92. [DOI: 10.1007/s00438-007-0306-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Accepted: 11/03/2007] [Indexed: 11/29/2022]
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Agarwal P, Arora R, Ray S, Singh AK, Singh VP, Takatsuji H, Kapoor S, Tyagi AK. Genome-wide identification of C2H2 zinc-finger gene family in rice and their phylogeny and expression analysis. PLANT MOLECULAR BIOLOGY 2007; 65:467-85. [PMID: 17610133 DOI: 10.1007/s11103-007-9199-y] [Citation(s) in RCA: 156] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2007] [Accepted: 05/27/2007] [Indexed: 05/02/2023]
Abstract
Transcription factors regulate gene expression in response to various external and internal cues by activating or suppressing downstream genes in a pathway. In this study, we provide a complete overview of the genes encoding C(2)H(2) zinc-finger transcription factors in rice, describing the gene structure, gene expression, genome localization, and phylogenetic relationship of each member. The genome of Oryza sativa codes for 189 C(2)H(2) zinc-finger transcription factors, which possess two main types of zinc-fingers (named C and Q). The Q-type zinc fingers contain a conserved motif, QALGGH, and are plant specific, whereas C type zinc fingers are found in other organisms as well. A genome-wide microarray based gene expression analysis involving 14 stages of vegetative and reproductive development along with 3 stress conditions has revealed that C(2)H(2) gene family in indica rice could be involved during all the stages of reproductive development from panicle initiation till seed maturation. A total of 39 genes are up-regulated more than 2-fold, in comparison to vegetative stages, during reproductive development of rice, out of which 18 are specific to panicle development and 12 genes are seed-specific. Twenty-six genes have been found to be up-regulated during three abiotic stresses and of these, 14 genes express specifically during the stress conditions analyzed while 12 are also up-regulated during reproductive development, suggesting that some components of the stress response pathways are also involved in reproduction.
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Affiliation(s)
- Pinky Agarwal
- Interdisciplinary Centre for Plant Genomics and Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi 110021, India
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Seong ES, Lee JY, Yu CY, Yang DC, Eom SH, Cho DH. Lycopersicon Eculentum C2H2-type Zinc Finger Protein Induced by Oxidative Stress Especially. ACTA ACUST UNITED AC 2007. [DOI: 10.5010/jpb.2007.34.3.167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Huang F, Chi Y, Meng Q, Gai J, Yu D. GmZFP1 encoding a single zinc finger protein is expressed with enhancement in reproductive organs and late seed development in soybean (Glycine max). Mol Biol Rep 2006; 33:279-85. [PMID: 17077988 DOI: 10.1007/s11033-006-9012-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2006] [Accepted: 07/28/2006] [Indexed: 11/24/2022]
Abstract
The plant TFIIIA zinc finger proteins play important roles in plant growth and development. In this report, we isolated a single zinc finger gene, designated as GmZFP1, from soybean flowers by in silico mRNA subtraction strategy and RT-PCR. GmZFP1 is an intronless gene and encodes a protein of 210 amino acid residues with a predicted molecular mass of 23.5 KDa. GmZFP1 contains a single zinc finger domain and a DLN-box/EAR-motif at the C-terminus. To localize GmZFP1 mRNA in various tissues, semi-quantative RT-PCR assay was performed. GmZFP1 is expressed in all detected reproductive organs including flowers, developing seeds, pods, sepals, pistils with a low level, and more accumulated in petals, stamens, but not found in all detected vegetative organs with except of stem tips. Further, we found that the expression of GmZFP1 was higher in late seed development than in early seed development. To our knowledge, GmZFP1 is the first characterized gene encoding for single zinc finger protein in soybean, and may play a role as a transcriptional factor in reproductive organs development, especially functioning in petals, stamens and late developing seeds.
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Affiliation(s)
- Fang Huang
- National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
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Oh SK, Park JM, Joung YH, Lee S, Chung E, Kim SY, Yu SH, Choi D. A plant EPF-type zinc-finger protein, CaPIF1, involved in defence against pathogens. MOLECULAR PLANT PATHOLOGY 2005; 6:269-85. [PMID: 20565656 DOI: 10.1111/j.1364-3703.2005.00284.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
SUMMARY To understand better the defence responses of plants to pathogen attack, we challenged hot pepper plants with bacterial pathogens and identified transcription factor-encoding genes whose expression patterns were altered during the subsequent hypersensitive response. One of these genes, CaPIF1 (Capsicum annuum Pathogen-Induced Factor 1), was characterized further. This gene encodes a plant-specific EPF-type protein that contains two Cys(2)/His(2) zinc fingers. CaPIF1 expression was rapidly and specifically induced when pepper plants were challenged with bacterial pathogens to which they are resistant. In contrast, challenge with a pathogen to which the plants are susceptible only generated weak CaPIF1 expression. CaPIF1 expression was also strongly induced in pepper leaves by the exogenous application of ethephon, an ethylene-releasing compound, and salicylic acid, whereas methyl jasmonate had only moderate effects. CaPIF1 localized to the nuclei of onion epidermis when expressed as a CaPIF1-smGFP fusion protein. Transgenic tobacco plants over-expressing CaPIF1 driven by the CaMV 35S promoter showed increased resistance to challenge with a tobacco-specific pathogen or non-host bacterial pathogens. These plants also showed constitutive up-regulation of multiple defence-related genes. Moreover, virus-induced silencing of the CaPIF1 orthologue in Nicotiana benthamiana enhanced susceptibility to the same host or non-host bacterial pathogens. These observations provide evidence that an EPF-type Cys(2)/His(2) zinc-finger protein plays a crucial role in the activation of the pathogen defence response in plants.
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Affiliation(s)
- Sang-Keun Oh
- Plant Genomics Laboratory, Genome Research Center, KRIBB, PO Box 115, Yusung, Taejon, 305-600, Republic of Korea
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Nakagawa H, Jiang CJ, Sakakibara H, Kojima M, Honda I, Ajisaka H, Nishijima T, Koshioka M, Homma T, Mander LN, Takatsuji H. Overexpression of a petunia zinc-finger gene alters cytokinin metabolism and plant forms. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2005; 41:512-23. [PMID: 15686516 DOI: 10.1111/j.1365-313x.2004.02316.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Shoot branching and plant height are among the key factors that define the overall architecture of plants. We found that overexpression of a cDNA for a zinc-finger protein of petunia, designated Lateral shoot-Inducing Factor (LIF), in transgenic petunia plants resulted in a dramatic increase in lateral shoots and reduced plant height. LIF overexpression also caused a decrease in the number of cells in the stem, leaf, and flower, accompanied by enlargement of cells. trans-Zeatin was decreased while N6-(Delta2-isopentenyl)adenine was increased in the leaves of LIF-overexpressed petunia. Most of the riboside, ribotide, and glucoside forms were also increased. Expression analysis using a LIF::GUS fusion gene and RT-PCR suggested that LIF is specifically expressed around the bases of axillary buds and weakly in basal part of flowers in wild-type petunia. GFP-LIF-GUS fusion proteins were translocated into the nucleus when transiently expressed in onion epidermal cells. LIF overexpression resulted in enhanced branching also in tobacco and Arabidopsis, indicating the conservation of the response to LIF overexpression among dicotyledonous plants. On the basis of these results we discuss about possible functions of LIF.
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Affiliation(s)
- Hitoshi Nakagawa
- Developmental Biology Laboratory, Plant Physiology Department, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
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Payne T, Johnson SD, Koltunow AM. KNUCKLES (KNU) encodes a C2H2 zinc-finger protein that regulates development of basal pattern elements of the Arabidopsis gynoecium. Development 2004; 131:3737-49. [PMID: 15240552 DOI: 10.1242/dev.01216] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Flowers of the parthenocarpic knuckles mutant are conditionally male sterile and contain ectopic stamens and carpels that originate from placental tissue within developing gynoecia. The mutation was mapped to a 123 Kb interval on chromosome 5 using molecular markers. All aspects of the knuckles phenotype could be complemented by a genomic fragment from the region which contained the annotated MAC12.2 gene. A guanine to adenine transition within a predicted C2H2 zinc finger-encoding region of MAC12.2 causes the second of two critical zinc-binding cysteine residues to be replaced by a tyrosine. Transgenic plants in which translational fusions of the GUS reporter to KNUCKLES were driven by the presumptive KNUCKLES promoter indicate that the gene is expressed first in developing carpel primordia, and later in stamens and ovules of flower buds. In situ hybridization experiments showed a broader pattern of transcript localization, suggesting that post-transcriptional regulatory mechanisms may limit KNUCKLES protein accumulation and localization. Based on genetic evidence and the presence of a carboxy-terminal motif demonstrated by others to function as an active repression domain, we propose that KNUCKLES might function as a transcriptional repressor of cellular proliferation that regulates floral determinacy and relative size of basal pattern elements along the proximo-distal axis of the developing Arabidopsis gynoecium.
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Affiliation(s)
- Thomas Payne
- Commonwealth Scientific and Industrial Research Organization, Division of Plant Industry, Horticulture Unit, PO Box 350, Glen Osmond, SA 5064, Australia.
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Takeda S, Matsumoto N, Okada K. RABBIT EARS, encoding a SUPERMAN-like zinc finger protein,regulates petal development inArabidopsis thaliana. Development 2004; 131:425-34. [PMID: 14681191 DOI: 10.1242/dev.00938] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Floral organs usually initiate at fixed positions in concentric whorls within a flower. Although it is understood that floral homeotic genes determine the identity of floral organs, the mechanisms of position determination and the development of each organ have not been clearly explained. We isolated a novel mutant, rabbit ears (rbe),with defects in petal development. In rbe, under-developed petals are formed at the correct position in a flower, and the initiation of petal primordia is altered. The rbe mutation affects the second whorl organ shapes independently of the organ identity. RBE encodes a SUPERMAN-like protein and is located in the nucleus, and thus may be a transcription factor. RBE transcripts are expressed in petal primordia and their precursor cells, and disappeared at later stages. When cells that express RBE are ablated genetically, no petal primordia arise. RBE is not expressed in ap1-1 and ptl-1mutants, indicating that RBE acts downstream of AP1 and PTL genes. These characteristics suggest that RBE is required for the early development of the organ primordia of the second whorl.
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Affiliation(s)
- Seiji Takeda
- Department of Botany, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
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