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ENF1 (enlarged fil expression domain1) vs wild-type Col.

ABSTRACT: ENF1 gene (AT1G79440) encodes succinic semialdehyde dehydrogenase. Loss-of-function mutant of ENF1 shows pleiotropic phenotypes, including abnormal gene expression along the adaxial-abaxial axis in leaf development. enf1-1 allele has a point mutation in the splicing accepter site of 11th intron of ENF1. enf1-6 allele has T-DNA insertion in 5th exon of ENF1.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE24895 | GEO | 2013/10/21

SECONDARY ACCESSION(S): PRJNA132075

REPOSITORIES: GEO

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ENF1 (enlarged fil expression domain1) vs wild-type Col.

Project description:ENF1 gene (AT1G79440) encodes succinic semialdehyde dehydrogenase. Loss-of-function mutant of ENF1 shows pleiotropic phenotypes, including abnormal gene expression along the adaxial-abaxial axis in leaf development. enf1-1 allele has a point mutation in the splicing accepter site of 11th intron of ENF1. enf1-6 allele has T-DNA insertion in 5th exon of ENF1. Differential gene expression between in enf1 and in wild type was measured at shoot apex of six-day-after-sowing seedlings. Independent experiments for wild type, enf1-1, and enf1-6 were performed four, three, and three times, respectively.

2013-10-21 | E-GEOD-24895 | biostudies-arrayexpress

CRABS CLAW positively regulates genes involved in the establishment of both abaxial and adaxial identity in Arabidopsis

Project description:CRABS CLAW (CRC) encodes a transcription factor of the plant-specific YABBY class in the model plant Arabidopsis thaliana. This gene is highly expressed in the abaxial (external) domain of the gynoecium wall and contributes to the establishment of abaxial-adaxial (external-internal) polarity in that tissue. Here we derive a list of putative target genes of CRC, which include AUXIN RESPONSE FACTOR4 (ARF4) and ASSYMETRIC LEAVES1 (AS1), both of which are known to be involved in the establishment of abaxial-adaxial polarity in lateral organs. ETTIN (ETT), which is partially redundant with ARF4, was not identified as a direct target of CRC, and this observation led us to predict that crc/ett double mutants might resemble ett/arf4 double mutants, which show a very strong breakdown of abaxial-adaxial polarity in the gynoecium wall. We have confirmed this prediction by constructing double mutants using several available mutant alleles of crc, ett and arf4. Interestingly, AS1 plays a role in the establishment of adaxial tissue identity in lateral organs, though its expression is not restricted to the adaxial domain. The observed positive regulation of AS1 by CRC may thus occur very early in gynoecium development, before CRC expression becomes polarised, or at later stages of development, specifically in the abaxial domain.

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Expression profiling of shoot apices of 35S::WOX1:GR seedlings transiently treated with DEX

Project description:The WOX1 transcription factor is a multifunctional regulator of lateral-organ development that acts as a transcriptional repressor. WOX1 promotes lamina growth, controls marginal tissue differentiation and is involved in establishment and maintenance of the adaxial-abaxial pattern from the middle domain of leaf primordia. To identify the WOX1 downstream genes, we performed a microarray analysis of shoot apices of transgenic Arabidopsis thaliana lines harboring 35S::WOX1:glucocorticoid receptor (GR) in which the WOX1 function was temporarily enhanced by dexamethasone (DEX).

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Methylation Changes in Soybean Early Maturation Seed Compartments Using Laser Capture Microdissection (LCM)

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