Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Rge1-1, retarded growth of embryo mutant vs wild-type Col-0

ABSTRACT: The loss-of-function mutation of the RGE1 (retarded growth of embryo) gene, which is expressed during seed development, caused small and shriveled seeds. The embryo of the loss-of-function mutant showed retarded growth after the heart stage although abnormal morphogenesis and pattern formation of the embryo and endosperm was not observed. RGE1 expression was determined in endosperm cells using the β-glucuronidase reporter gene and RT-PCR. The differences of expression profile between rge1-1 and wild type Col-0 was examined to know the functions of RGE1. The result of Microarray analysis showed specific down-regulation of putative GDSL motif lipase genes in the rge1-1 mutant indicating possible involvement of these genes in seed morphology.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE11616 | GEO | 2008/07/01

SECONDARY ACCESSION(S): PRJNA106241

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Transcription profiling of Arabidopsis rge1-1, retarded growth of embryo mutant vs wild-type Col-0

Project description:The loss-of-function mutation of the RGE1 (retarded growth of embryo) gene, which is expressed during seed development, caused small and shriveled seeds. The embryo of the loss-of-function mutant showed retarded growth after the heart stage although abnormal morphogenesis and pattern formation of the embryo and endosperm was not observed. RGE1 expression was determined in endosperm cells using the Î²-glucuronidase reporter gene and RT-PCR. The differences of expression profile between rge1-1 and wild type Col-0 was examined to know the functions of RGE1. The result of Microarray analysis showed specific down-regulation of putative GDSL motif lipase genes in the rge1-1 mutant indicating possible involvement of these genes in seed morphology. Experiment Overall Design: Total RNA was isolated from siliques of rge1-1 and wild type at 12 DAF using an RNAqueous Kit (Ambion, Inc, USA).

2008-10-21 | E-GEOD-11616 | biostudies-arrayexpress

The Arabidopsis mature endosperm promotes seedling cuticle formation via release of sulfated peptides

Project description:In Arabidopsis mature seeds, the onset of the embryo-to-seedling transition is nonautonomously controlled, being blocked by endospermic abscisic acid (ABA) release under unfavorable conditions. Mature embryos lack an impermeable cuticle, unlike seedlings, consistent with their endospermic ABA uptake capability. Seedling cuticle formation occurs after germination rather than during embryogenesis. Mature endosperm removal prevents seedling cuticle formation and seed reconstitution by endosperm grafting onto embryos shows that the endosperm promotes seedling cuticle development. Grafting different endosperm and embryo mutant combinations, together with biochemical, microscopy and mass spectrometry approaches, reveals that endospermic release of Tyrosyl Sulfate Transferase (TPST)-sulfated CIF2 and PSY1 peptides promotes seedling cuticle development. Endosperm-deprived embryos produced nonviable seedlings bearing numerous developmental defects, in a manner unrelated to embryo nourishment, all restored by exogenously provided endosperm. Hence, seedling establishment is nonautonomous, requiring the mature endosperm.

2021-11-10 | PXD028576 | Pride

Specialized metabolome seed coat/endosperm and seed embryo of Arabidopsis thaliana

Project description:Untargeted metabolomic analyses were carried out on seed coat/endosperm and seed embryo (dry seeds) of Arabidopsis thaliana Columbia-0 genotype. Three biological replicates were analyzed for each sample.

| MSV000095844 | MassIVE

Tissue specific transcriptome atlas of early Brassica napus seed development

Project description:Tissues were isolated from the globular seed using laser microdissection. At least two bioreplicates are included for each tissue. Tissues examined are : the embryo proper (EP), micropylar endosperm (MCE), peripheral endosperm (PEN), chalazal endosperm (CZE), chalazal proliferating tissue (CPT), chalazal seed coat (CZSC), inner seed coat (ISC), and outer seed coat (OSC).

2019-01-15 | GSE120360 | GEO

Transcription profiling of Arabidopsis thaliana seed compartments at the globular embryo stage.

Project description:We collected globular stage seed compartments from 5 or 7-micron paraffin sections using the Leica LMD6000 system in order to identify the mRNAs present in different compartments of an Arabidopsis seed containing a globular stage embryo. For the purposes of this study we broke down the seed into 7 capturable compartments: embyro proper, suspensor, micropylar endosperm, peripheral endosperm, chalazal endosperm, chalazal seed coat and general seed coat. Experiment Overall Design: Globular stage seed compartments were isolated using the LMD6000 system. Total RNA was amplified and hybridized with Affymetrix ATH1 Arabidopsis array for 15 samples (Embryo Proper, Micropylar Endosperm, Peripheral Endosperm, General Seed Coat and Chalazal Seed Coat, 2 biological replicates each and Chalazal Endosperm with 3 biological replicates).

2008-06-11 | E-GEOD-11262 | biostudies-arrayexpress

affy_compartimentation_rice_albumen_embryon-Transcriptomic study of the rice seed compartimentation during germination

Project description:affy_rice_2011_03 - affy_compartimentation_rice_albumen_embryon - During germination, the rice seed goes from a dry quiescent state to an active metabolism. As with all cereals, the rice seed is highly differentiated between the embryo (that will give rise to the future plantlet) and the endosperm (that contains the seed storage compounds and that will degenerate). The molecular mechanisms operating in the rice seed embryo have begun to be described. Yet, very few studies have focused specifically on the endosperm during the germination process. In particular, the endosperm is mostly addressed with regards to its storage proteins but we have detected a large protein diversity by two-dimensional electrophoresis. Similarly, the endosperm is rich in total RNA which suggest that gene expression coming from seed maturation could play a role during the germination process. In this context, we want to compare the transcriptome of the embryo and the endosperm during rice seed germination. -We germinate rice seeds of the first sequenced rice cultivar i.e. Nipponbare during 0, 4, 8, 12, 16 and 24h of imbibition in sterile distilled water. Germination occurs under constant air bubbling, in the dark at 30°C. These rice seeds are then manually dissected into embryo and endosperm fractions. -The embryo-derived samples are abbreviated in “E” while the endosperm samples are abbreviated “A”. The germination time-point is indicated after the letter (e.g. E8 for embryo samples harvested after 8 hours of germination). Finally, the biological repetition number is indicated before the letter and the time digit (e.g. 1-E8 for an embryo sample from the first repetition at 8 hours of imbibition).

2013-07-01 | GSE43780 | GEO

Methylation Changes in Arabidopsis Mature Green Seed Parts

Project description:Seeds are comprised of three major parts of distinct parental origin: the seed coat, embryo, and endosperm. The maternally-derived seed coat is important for nurturing and protecting the seeds during development. By contrast, the embryo and the endosperm are derived from a double fertilization event, where one sperm fertilizes the egg to form the diploid zygote and the other sperm fertilizes the central cell to form the triploid endosperm. Each seed part undergoes distinct developmental programs during seed development. What methylation changes occur in the different seed parts, if any, remains unknown. To uncover the possible role of DNA methylation in different parts of the seed, we characterized the methylome of two major parts of Arabidopsis mature green stage seeds, the seed coat and embryo, using Illumina sequencing.

2014-05-17 | GSE57755 | GEO

Transcription profiling of Arabidopsis seed compartments at the mature green stage.

Project description:We collected mature green seed compartments from 7 micron paraffin sections using the Leica LMD6000 system in order to identify the mRNAs present in different compartments from seeds containing mature green-stage embryos. For the purposes of this study we captured 6 compartments: embryo proper, micropylar endosperm, cellularized peripherial endosperm, chalazal endosperm, chalazal seed coat and seed coat, as well sets of serial sections encompassing the entire mature green stage seed. Experiment Overall Design: Mature green stage seed compartments were isolated using the LMD6000 system. Total RNA was amplified and hybridized with Affymetrix ATH1 Arabidopsis array for 14 samples (embryo proper, micropylar endosperm, peripherial endosperm, chalazal endosperm, chalazal seed coat, seed coat and whole seeds, 2 biological replicates each).

2009-03-21 | E-GEOD-15165 | biostudies-arrayexpress

Transcription profiling of Arabidopsis seed compartments at the heart stage.

Project description:We collected heart stage seed compartments from 7 micron paraffin sections using the Leica LMD6000 system in order to identify the mRNAs present in different compartments from seeds containing heart stage embryos. For the purposes of this study we captured 6 compartments: embryo proper, micropylar endosperm, peripheral endosperm, chalazal endosperm, chalazal seed coat and seed coat, as well sets of serial sections encompassing the entire heart stage seed. Experiment Overall Design: Heart stage seed compartments were isolated using the LMD6000 system. Total RNA was amplified and hybridized with Affymetrix ATH1 Arabidopsis array for 16 samples (embryo proper, micropylar endosperm, peripheral endosperm, seed coat and whole seeds, 2 biological replicates each; chalazal endosperm, chalazal seed coat, 3 biological replicates each).

2009-03-21 | E-GEOD-15160 | biostudies-arrayexpress

Comparative transcriptome analysis of wheat embryo and endosperm response to ABA and H2O2 stresses during seed germination

Project description:Wheat seed germination directly affects wheat yield and quality. The wheat grains mainly include embryo and endosperm, and both play important roles in seed germination, seedling survival and subsequent vegetative growth. ABA can positively regulate dormancy induction and then negatively regulates seed germination at low concentrations. H2O2 treatment with low concentration can promote seed germination of cereal plants. Although various transcriptomics and proteomics approaches have been used to investigate the seed germination mechanisms and response to various abiotic stresses in different plant species, an integrative transcriptome analysis of wheat embryo and endosperm response to ABA and H2O2 stresses has not reported so far. We used the elite Chinese bread wheat cultivar Zhenmai 9023 as material and performed the first comparative transcriptome microarray analysis between embryo and endosperm response to ABA and H2O2 treatments during seed germination using the GeneChip® Wheat Genome Array Wheat seed germination includes a great amount of regulated genes which belong to many functional groups. ABA/H2O2 can repress/promote seed germination through coordinated regulating related genes expression. Our results provide new insights into the transcriptional regulation mechanisms of embryo and endosperm response to ABA and H2O2 treatments during seed germination

2014-12-11 | GSE64030 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data