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Methylation Changes in Arabidopsis seed development

ABSTRACT: There are four major seed developmental phases in Arabidopsis seed development: morphogenesis, maturation, dormancy and germination. What methylation changes occurring in the different phases, if any, remains unknown. To uncover the possible role of DNA methylation in different parts of the seed, we characterized the methylome of four major seed developmental phases of Arabidopsis using Illumina sequencing: global stage (glob) and linear cotyledon stage (lcot) for morphogenesis phase; mature green stage (mg) and post mature green stage (pmg) for maturation phase; dry seed (dry) for dormancy phase; leaves (leaf) from 4 week plant for vegetative tissues.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE68132 | GEO | 2015/04/22

SECONDARY ACCESSION(S): PRJNA281872

REPOSITORIES: GEO

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Methylation Changes in Arabidopsis seed development

Project description:There are four major seed developmental phases in Arabidopsis seed development: morphogenesis, maturation, dormancy and germination. What methylation changes occurring in the different phases, if any, remains unknown. To uncover the possible role of DNA methylation in different parts of the seed, we characterized the methylome of four major seed developmental phases of Arabidopsis using Illumina sequencing: global stage (glob) and linear cotyledon stage (lcot) for morphogenesis phase; mature green stage (mg) and post mature green stage (pmg) for maturation phase; dry seed (dry) for dormancy phase; leaves (leaf) from 4 week plant for vegetative tissues. Illumina sequencing of bisulfite-converted genomic DNA from six seed developmental stages in Arabidopsis: global stage (glob), linear cotyledon stage (lcot), mature green stage (mg), post mature green stage (pmg), dry seed (dry) and leaves (leaf) from 4 week plant.

2015-04-22 | E-GEOD-68132 | biostudies-arrayexpress

Methylation Changes During Soybean Seed Development

Project description:What methylation changes are occurring during seed development largely remains unknown. To uncover the possible role of DNA methylation during the transition from seed differentiation to maturation and dormany in soybean, we characterized the methylome of whole seeds representing the differentiation (GLOB stage), maturation (early- (EM), mid- (B1) and late- (AA1) maturation stages), and dormancy (DRY stage) phases of soybean seed development using Illumina sequencing. In addition, we characterized the methylome of the mid-maturation stage embryonic axis (B1-AX) to examine methylation differences, if any, between an embryonic region compared to the whole seed. Illumina sequencing of bisulfite-converted genomic DNA from globular stage (GLOB), early-maturation stage (EM), mid-maturation stage (B1), and late-maturation stage (AA1) seeds, dormancy stage (DRY) and mid-maturation embryonic axis (B1-AX).

2011-12-22 | E-GEOD-34637 | biostudies-arrayexpress

Methylation Changes During Soybean Seed Development

Project description:What methylation changes are occurring during seed development largely remains unknown. To uncover the possible role of DNA methylation throughout all of seed development - from fertilization through dormancy and post-germination in soybean, we characterized the methylome of whole seeds representing the differentiation (GLOB and COT stages), maturation (early- [EM], mid- [B1] and late- [AA1] maturation stages), dormancy (DRY stage), and post-germination (seedling) phases of soybean seed development using Illumina sequencing. In addition, we characterized the methylome of the cotyledons of germinated seedling to examine methylation differences before and after germination.

2011-12-22 | GSE34637 | GEO

Methylation Profile of postmature-green-stage seed and dry seed from Arabidopsis ddcc mutant

Project description:The role of non-CG methylation in seed development and dormancy remains unknown. There are four genes in charge of non-CG methylation in Arabidopsis: drm1, drm2, cmt2 and cmt3. The majority of non-CG methylation in vegetative tissues, leaf, is gone in homozygous ddcc mutant line (Hume et al., 2014). To uncover the possible role of non-CG DNA methylation in seed development and dormancy, we characterized the methylome of ddcc mutant in Arabidopsis postmature-green-stage seed and dry seed using Illumina sequencing. Meanwhile, vegetative tissue, leaves from 3 week plant with ddcc mutant and from wild-type, and postmature-green-stage seed and dry seed from wild-type plant were used as control.

2015-04-22 | GSE68131 | GEO

SCL15 is a critical regulator for plant development, germination, seed dormancy and seed vigor in Arabidopsis thaliana

Project description:Seed maturation, dormancy and germination are distinct physiological processes. Transition from maturation to dormancy, and from dormancy into germination are not only critical developmental phases in the plant life cycle but are also important agricultural traits. These developmental processes and their phase transitions are fine determined and coordinately regulated by genetic makeup and environmental cues. SCARECROW-LIKE15 (SCL15) has been demonstrated to be essential for repressing the seed maturation programme in vegetative tissues (Gao et al., Nat Commun, 2015, 6:7243). Here we report that SCL15 is also important for seed dormancy maintenance, germination timing and seed vigor performance based on the effects of SCL15 mutation on plant germination, growth and reproduction when compared with wild type Arabidopsis and over-expression lines 35S:SCL15 and Napin:SCL15. Seed dormancy is enhanced by the mutation of SCL15 in a GA signaling dependent way, indicating that SCL15 plays a negative role for primary dormancy release. Seed germination is positively regulated by SCL15 through interaction with ABA, GA and auxin signaling. SCL15 acts as positive regulator of seed vigor and effect of SCL15 mRNA abundance on seed reserve accumulation and seed development during late embryogenesis may contribute to the seed vigor performance.

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Expression data from 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.

2009-03-12 | GSE15165 | GEO

Gene Expression Changes during embryo and seed maturation, quiescence and germination in soybean

Project description:To understand the molecular events underlying seed maturation, quiescence and germination, we performed transcriptome analysis of soybean (Glycine max) embryos at four seed developmental stages (cotyledon, early, mid and late maturation), mature dry seeds, and seedlings, eight days after seed sowing.

2017-07-12 | GSE99571 | GEO

Transcriptome profiling of post-mature green seeds from Arabidopsis ddcc mutant and wild-type

Project description:The role of on-CG methylation in seed development and dormancy remains unknown. There are four genes in charge of non-CG methylation in Arabidopsis: drm1, drm2, cmt2 and cmt3. The majority of non-CG methylation in vegetative tissues, leaf, is gone in homozygous ddcc mutant line (Hume et al., 2014). To uncover the possible role of non-CG DNA methylation in seed development and dormancy, we characterized the transcriptome of ddcc mutant in Arabidopsis post-mature green seeds using Illumina sequencing. Meanwhile, post-mature green seeds from wild type were used as control.

2016-01-01 | GSE76447 | GEO

Transcriptome profiling of post-mature green seeds from Arabidopsis ddcc mutant and wild-type

2016-07-03 | E-GEOD-76447 | biostudies-arrayexpress

Transcript Profiling of Arabidopsis Plant Life Cycle

Project description:This series contain all stages Arabidopsis plant development. Stages of development includes unfertilized ovule, 24-Hr post-fertilization seed, globular stage seed, cotyledon stage seed, mature green seed, post-mature green seed, post-germination seedling, rosette leaf, root, stem, and floral bud. Keywords = Arabidopsis Keywords = Seed development Keywords = seedling Keywords = germination Keywords = leaf Keywords = root Keywords = stem Keywords = floral bud Keywords: ordered

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