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Dynamic and specificity of CUC transcription factors during leaf development : Towards a high-resolution Gene Regulatory Network model

ABSTRACT: Define the regulatory network involved in leaf development 3-weeks old plants grown in short condition from each genotype (cuc2-3, WT and CUC2gm-4 lines) were dissected and meristem tissue and young leaf primordia were collected and snap frozen in liquid nitrogen. Total RNA were extracted using miRVANA kit following manufacturers instructions. 3 biological repeats were performed for each genotype.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE72134 | GEO | 2016/09/01

SECONDARY ACCESSION(S): PRJNA293163

REPOSITORIES: GEO

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Dynamic and specificity of CUC transcription factors during leaf development : Towards a high-resolution Gene Regulatory Network model

Project description:Define the regulatory network involved in leaf development 3-weeks old plants grown in short condition from each genotype (cuc2-3, WT and CUC2gm-4 lines) were dissected and meristem tissue and young leaf primordia were collected and snap frozen in liquid nitrogen. Total RNA were extracted using miRVANA kit following manufacturers instructions. 3 biological repeats were performed for each genotype. mRNA seq on wild-type Col0 and two CUC mutants knock out.

2016-09-01 | E-GEOD-72134 | biostudies-arrayexpress

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Project description:gnp07_regeneome_cuc2 - cuc2 - CUC2 is expressed in meristem. It permits to create organs boundaries. It is also expressed in leave margins. Is there a mecanism meristem like in leave margins? - To compare wt and cuc2 leaf margins. And compare teeth and hollow inside the arabidopsis leaf margin.

2012-06-01 | GSE30260 | GEO

CUC2 mutant tissues vs. wild type cuc2-Gnp07_Regeneome_cuc2

2012-05-31 | E-GEOD-30260 | biostudies-arrayexpress

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Project description:au13-03_cuc2 - identification of target genes regulated by cuc2 in a.thaliana shoot apical meristem. - Identification of genes specifically targeted by the CUC2 transcription factor that defines the margins of the floral meristem of Arabidopsis thaliana. - identify genes specifically targeted by CUP-SHAPED COTYLEDON 2 (CUC2), a transcription factor required for embryonic shoot meristem formation and specification of the organ boundary in A.thaliana

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Expression data from BIG LEAF

Project description:We study differences in gene expression between Populus P35S::BL (BL-oe) lines and control, affecting plant growth and differentiation, and dormancy. We used microarrays to detail the global program of gene expression underlying morphological and developmental changes droved by overexpression of BL gene. We identified an activation tagging mutant with increased leaf size and correspondingly name it BIG LEAF (BL). We positioned the tag, localized a putative candidate gene and verified transcription activation. The activated gene encodes a WD40 putative transcription regulator similar to the Arabidopsis thaliana STERILE APETALA (SAP). We recapitulated the phenotype by overexpression of the gene into the same genotype under strong constitutive promoter (P35S::BL, BL-oe). Transgenic up-regulation of the BL gene caused enhanced leaf size, early bud-break, and suppression of secondary growth. BL transcript abundance in wild type plants is in apical tissues, mostly in shoot meristem, leaf primordia and axillary meristem. Our data indicates that BL plays an important role in the process of tree growth.

2017-05-11 | GSE68859 | GEO

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Project description:Ovule development is a key process for plant reproduction that ensures correct seed production. Understanding the molecular mechanisms that control ovule formation will also provide new approaches to increase crop yield for breeding. Several molecular factors and plant hormones, including gibberellins, are involved in ovule initiation and development. Gibberellins control ovule development by the destabilization of DELLA proteins, whereas DELLA activity has been proved to act as a positive factor for ovule primordia emergence. But the molecular mechanism by which DELLA act remained unknown. Here we have proved that DELLA proteins control ovule initiation by the formation of a protein complex with the CUC2 transcription factor. The DELLA protein GAI requires CUC2 to promote ovule primordia formation, thus GAI would function by its direct protein-protein interaction with CUC2 in cells of the placenta that determine the boundary regions between ovules during pistil development. Analysis of GAI-CUC2 interaction and colocalization in placenta support this hypothesis. Moreover, molecular analysis of the loci at which GAI protein may act as transcriptional co-regulators in a CUC2-dependent manner identified a subset of target genes that would be regulated by the GAI-CUC2 complex and contribute to regulate ovule primordia emergence.

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Arabidopsis thaliana embryos: wild type vs cuc1 cuc2 double mutant

Project description:Transcriptional profiling of Arabidopsis embryos comparing cuc1-1 cuc2-1 mutant (test) and wild type Ler (reference). Goal was to screen genes regulated by CUC1 and CUC2 transcription factors, which are required for shoot meristem formation and cotyledon separation.

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Expression data from BIG LEAF

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Project description:Kidneys were snap frozen from 2 month old wild type, Col4a3-/-, or Col4a3-/-OPN-/- mice. RNA was isolated using Mirvana Paris kit.

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Alport (Col4a3-/-) Mouse Recapitulates Heart Failure with Preserved Ejection Fraction Pathologies Driven by Osteopontin-Mitochondria Axis

Project description:Hearts were snap frozen from 2 month old wild type, Col4a3-/-, or Col4a3-/-OPN-/- mice. RNA was isolated using Mirvana Paris kit.

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