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Affy_tour_2012-02-Study of sunflower seed dormancy by translatome analysis

ABSTRACT: affy_tour_2012-02 - Identification of transcripts that are addressed to traduction in imbibed seeds in relation with dormancy: comparison of the translatome in Dormant versus Non-Dormant seeds -- At harvest seeds are dormant. They stay dormant if they are stored at -20°C (D) and become non-dormant (ND) if they are stored 2 months at +20°C. Polysomal fractions were purified on sucrose gradients from sunflower axis isolated from dormant and non-dormant seeds imbibed at 10°C during 3h, 15h or 24h. - These fractions allow to identify the transcripts addressed to translation (translatome) during the seed imbibition process (3, 15 and 24h) - The translatome of 2 types of seeds are compared: Dormant vs Non-Dormant at the 3 time points.

ORGANISM(S): Helianthus annuus

PROVIDER: GSE41944 | GEO | 2013/10/30

SECONDARY ACCESSION(S): PRJNA178641

REPOSITORIES: GEO

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affy_tour_2012-02-Study of sunflower seed dormancy by translatome analysis

Project description:affy_tour_2012-02 - Identification of transcripts that are addressed to traduction in imbibed seeds in relation with dormancy: comparison of the translatome in Dormant versus Non-Dormant seeds -- At harvest seeds are dormant. They stay dormant if they are stored at -20°C (D) and become non-dormant (ND) if they are stored 2 months at +20°C. Polysomal fractions were purified on sucrose gradients from sunflower axis isolated from dormant and non-dormant seeds imbibed at 10°C during 3h, 15h or 24h. - These fractions allow to identify the transcripts addressed to translation (translatome) during the seed imbibition process (3, 15 and 24h) - The translatome of 2 types of seeds are compared: Dormant vs Non-Dormant at the 3 time points. 18 arrays - SUNFLOWER; time course,treated vs untreated comparison

2013-10-30 | E-GEOD-41944 | biostudies-arrayexpress

transcriptome and translatome of arabidopsis wt seeds according to dormancy-transcriptomic and translatomic analysis of Arabidopsis seeds

Project description:au13-12_polysome - transcriptome and translatome of arabidopsis wt seeds according to dormancy - Identification of transcripts that are differentially abundant (transcriptome) and transcripts that are addressed to translation (translatome) in imbibed Arabidopsis seeds in relation with dormancy. During imbibition of seeds (16h and 24h in darkness at 25°C, dormant and non-dormant seeds), transcriptome analysis is done on total RNA and translatome analysis on polysomal RNA. - At harvest seeds are dormant. They stay dormant if they are stored at -20°C (D) and become non-dormant (ND) if they are stored 3 weeks at +20°C. Arabidopsis dormant seeds do not germinate at 25°C in darkness while non-dormant seeds do. Total RNA and polysomal RNA (polysomal fractions purified on sucrose gradients) were extracted from imbibed seeds for 16h or 24h at 25°C in darkness (3 biological replicates). Transcriptome and translatome are compared for Dormant vs Non-Dormant for 16h and 24 imbibition. In silico comparison will allow to compare transcriptome and translatome for each point and type of seeds and to compare the time points (16 vs 24h) for each type of sample.

2014-09-27 | GSE61809 | GEO

transcriptome and translatome of arabidopsis wt seeds according to dormancy-transcriptomic and translatomic analysis of Arabidopsis seeds

Project description:au13-12_polysome - transcriptome and translatome of arabidopsis wt seeds according to dormancy - Identification of transcripts that are differentially abundant (transcriptome) and transcripts that are addressed to translation (translatome) in imbibed Arabidopsis seeds in relation with dormancy. During imbibition of seeds (16h and 24h in darkness at 25Â°C, dormant and non-dormant seeds), transcriptome analysis is done on total RNA and translatome analysis on polysomal RNA. - At harvest seeds are dormant. They stay dormant if they are stored at -20Â°C (D) and become non-dormant (ND) if they are stored 3 weeks at +20Â°C. Arabidopsis dormant seeds do not germinate at 25Â°C in darkness while non-dormant seeds do. Total RNA and polysomal RNA (polysomal fractions purified on sucrose gradients) were extracted from imbibed seeds for 16h or 24h at 25Â°C in darkness (3 biological replicates). Transcriptome and translatome are compared for Dormant vs Non-Dormant for 16h and 24 imbibition. In silico comparison will allow to compare transcriptome and translatome for each point and type of seeds and to compare the time points (16 vs 24h) for each type of sample. 12 dye-swap - time course

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Effect of light on translatome of Arabidopsis seeds during germination

Project description:au14-10_wd40 - effet of light on translatome of arabidopsis seeds during germination - Does light regulates germination via polysome association ? - At harvest seeds are dormant.They stay dormant if stored at -20°C.A.Th dormant seeds dont germinate at 25°C in darkness.Total RNA and polysomal RNA (polysomal fractions purified on sucrose gradients)were extracted from imbibed seeds for 20h at 22°C in darkness and light(3 biological replicates). Transcriptome and translatome are compared for light vs dark for 20h of imbibition. In silico comparison will allow to compare transcriptome and translatome for each type of sample.

2017-02-01 | GSE93181 | GEO

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Project description:Red rice fully dormant seeds do not germinate even under favourable germination conditions. In several species, including rice, seed dormancy can be removed by dry-afterripening (warm storage); thus, dormant and nondormant seeds can be compared for the same genotype. A weedy (red) rice genotype with strong dormancy was used for mRNA expression profiling, by RNA-Seq, of dormant and nondormant dehulled caryopses (here addressed as seeds) at two temperatures (30 °C and 10 °C) and two durations of incubation in water (8 hours and 8 days). Aim of the study was to highlight the differences in the transcriptome of dormant and nondormant imbibed seeds.

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affy_sunflower_2010_13-ROS and hormones in sunflower seed dormancy.

Project description:affy_sunflower_2010_13 - affy_sunflower_2010_13 - It concerns the interaction between ROS and hormones in dormancy release in sunflower seeds. ABA is responsible for dormancy maintenance, while GA and ethylene promote seed germination. Based on our results, ROS could represent good candidate to shift from a hormone signalling to another determining the dormancy state in sunflower seeds.-We aim to understand the mechanisms controlling sunflower seed dormancy at the transcriptomic level, by the application of treatments which maintain dormancy as ABA, or alleviate dormancy as ROS and ethylene. Transcripts comparison will be performed between dormant and non-dormant sunflower embryo imbibed 24h on water, on ABA, on methylviologen, a pro-oxidant compound or on ethylene.

2013-08-01 | GSE44165 | GEO

affy_sunflower_2010_13-ROS and hormones in sunflower seed dormancy.

2013-08-01 | E-GEOD-44165 | biostudies-arrayexpress

Succinylome analyses in the germinating rice seed

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