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Tytuł:
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Arabidopsis PEAPODs function with LIKE HETEROCHROMATIN PROTEIN1 to regulate lateral organ growth.
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Autorzy:
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Zhu Y; National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
Luo X; National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.
Liu X; National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
Wu W; Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences,, Shanghai Normal University,, Shanghai, 200234, China.
Cui X; National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
He Y; National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.
Huang J; Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences,, Shanghai Normal University,, Shanghai, 200234, China.
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Źródło:
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Journal of integrative plant biology [J Integr Plant Biol] 2020 Jun; Vol. 62 (6), pp. 812-831. Date of Electronic Publication: 2019 Sep 25.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: [China] : Wiley-Blackwell Pub
Original Publication: [Carlton South, Victoria] : Blackwell Pub., 2005-
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MeSH Terms:
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Organ Specificity*
Arabidopsis/*growth & development
Arabidopsis/*metabolism
Arabidopsis Proteins/*metabolism
DNA-Binding Proteins/*metabolism
Transcription Factors/*metabolism
Alleles ; Arabidopsis/cytology ; Arabidopsis/genetics ; Arabidopsis Proteins/genetics ; Cell Cycle/genetics ; Cell Proliferation/genetics ; Co-Repressor Proteins/metabolism ; DNA-Binding Proteins/genetics ; Epistasis, Genetic ; Flowers/growth & development ; Gene Expression Regulation, Plant ; Gene Silencing ; Morphogenesis ; Mutation/genetics ; Plant Leaves/growth & development ; Polycomb-Group Proteins/metabolism ; Protein Binding ; Transcription Factors/genetics ; Transcriptome/genetics
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Substance Nomenclature:
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0 (Arabidopsis Proteins)
0 (Co-Repressor Proteins)
0 (DNA-Binding Proteins)
0 (LHP1 protein, Arabidopsis)
0 (PEAPOD protein, Arabidopsis)
0 (Polycomb-Group Proteins)
0 (Transcription Factors)
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Entry Date(s):
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Date Created: 20190518 Date Completed: 20210122 Latest Revision: 20210122
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Update Code:
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20240104
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DOI:
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10.1111/jipb.12841
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PMID:
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31099089
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In higher plants, lateral organs are usually of determinate growth. It remains largely elusive how the determinate growth is achieved and maintained. Previous reports have shown that Arabidopsis PEAPOD (PPD) proteins suppress proliferation of dispersed meristematic cells partly through a TOPLESS corepressor complex. Here, we identified a new PPD-interacting partner, LIKE HETEROCHROMATIN PROTEIN1 (LHP1), using the yeast two-hybrid system, and their interaction is mediated by the chromo shadow domain and the Jas domain in LHP1 and PPD2, respectively. Our genetic data demonstrate that the phenotype of ppd2 lhp1 is more similar to lhp1 than to ppd2, indicating epistasis of lhp1 to ppd2. Microarray analysis reveals that PPD2 and LHP1 can regulate expression of a common set of genes directly or indirectly. Consistently, chromatin immunoprecipitation results confirm that PPD2 and LHP1 are coenriched at the promoter region of their targets such as D3-TYPE CYCLINS and HIGH MOBILITY GROUP A, which are upregulated in ppd2, lhp1 and ppd2 lhp1 mutants, and that PPDs mediate repressive histone 3 lysine-27 trimethylation at these loci. Taken together, our data provide evidence that PPD and LHP1 form a corepressor complex that regulates lateral organ growth.
(© 2019 Institute of Botany, Chinese Academy of Sciences.)
