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Transcriptomics Analyses of soybean leaves and roots sample during water-deficit

ABSTRACT: Microarray experiments were performed on the roots and leaves samples seperately using custom based Nimblgen platform (12plex). This is a time-course study. The plants were grown in controlled growth chamber condiditons ambiient to soybean growth and development using a hydrophonics system. The tissues were harvested after 30days of growth in six time points- 0min, 30mins, 1hour, 2hours, 3hours and 5hours of dehydration. We used a hydrophonics system for the trancriptomics analysis of the soybean(William -82) root and leaves samples to study the reponse during water- deficit or drought. Plants were grown in controlled growth chamber conditions and harvested after 30days in six time-points. The plants were transferred to empty pots without touching to nullify any possibility of wounding and harvested subsequently. For 0mins, plants were taken out of the well-watered conditions and transfered to empty boxes and immediately harvested for both tisses and hence called 0-min dehydrated tissue. Similarly other time-points were processed (for instance, 2hrs of dehydration, plants were dehydrated for 2hours after being taken out from well-waterted pots and then harvested). Tissues for three biological replicates and three plants per biological replicates were collected for each time-point (n=9). RNA was islolated from both tissues using RNeasy Kit from Qiagen and quality was accessed with Nano-drop as well as with Agilent-Bioanalyzer using RNA-600 kit. 20ug of sample was processed at Micro Array Facility.

ORGANISM(S): Glycine max

SUBMITTER: Paul Rushton

PROVIDER: E-GEOD-49537 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcriptomics Analyses of soybean leaves and roots sample during water-deficit

Project description:Microarray experiments were performed on the roots and leaves samples seperately using custom based Nimblgen platform (12plex). This is a time-course study. The plants were grown in controlled growth chamber condiditons ambiient to soybean growth and development using a hydrophonics system. The tissues were harvested after 30days of growth in six time points- 0min, 30mins, 1hour, 2hours, 3hours and 5hours of dehydration.

2015-04-26 | GSE49537 | GEO

Transcriptomics Analyses of tobacco leaves and roots sample during water-deficit

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Comparative expression analysis of roots of two soybean cultivars with contrasting drought-tolerant phenotype under well-watered and dehydration conditions.

Project description:To understand the responses of plants to environmental stresses will help mitigate the problems via creating stress-tolerant crop cultivars. We have carried out comparative expression analysis of roots of two soybean varieties Williams 82 and DT2008 that have constrasting drought-responsive phenotype under dehydration and well-watered (control) conditions. Affymetrix’s whole Soybean Gene Expression Microarray (66K) was used. The Williams 82 and DT2008 soybean plants were grown for 14 days in the vermiculite soil under greenhouse conditions. The whole plants of 14-d-old plants were detached and exposed to dehydration on KimTowel papers for 0 (well-watered, control), 2 and 10 h. All roots of independent 14-d-old plants were collected. Total RNA was prepared and used for the microarray hybridization. Three independent biological replicates were used for each plant sample.

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Project description:Drought-responsive genes in soybean leaves were successfully identified using Affymetrix Soybean Gene 1.0 ST arrays on leaves samples of reproductive-stage soybean plants. R1 soybean plants planted in pots were imposed drought by withholding water for 5 days until the soil moisture content dropped to 5%, and 3rd trifoliates (now at the R2 stage) were collected for expression profiling. Soybean plants were grown in pots. When the plants reached the R1 stage (started flowering), drought treatment was imposed by withholding water. The soil moisture content was monitored during the process until the 5th day of water withholding, when soil moisture content reached 5%. The 3rd trifoliate (counting from shoots), now at the R2 stage, was collected for total RNA extraction, while other 3rd trifoliates of similar chlorophyl index were collected for leaves water content determination to identify the severity of the stress. Total RNA from 3rd trifoliates were used for expression profiling using Affymetrix Soybean Gene 1.0 ST arrays. Four biological repeats per treatment were performed, three biological repeats were chosen for expression profiling.

2012-11-10 | E-GEOD-40604 | biostudies-arrayexpress

Comparative expression analysis of roots of two soybean cultivars with contrasting drought-tolerant phenotype under well-watered and dehydration conditions.

2015-07-02 | GSE65553 | GEO

Transcription profiling by array of rice plants following dehydration treatment

Project description:Wild-type rice plants (O. sativa L. cv. Nipponbare) were grown in plastic pots filled with nutrient soil for 2 weeks under flooded lowland conditions and a 12 h/12 h light/dark cycle (50 ± 10 ?mol photons/m2/s) at 28°C (day) and 25°C (night). For dehydration treatment, two-week-old plants were incubated for 3 days without watering. The soil moisture content was 15.6% on day 3 of dehydration.

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Genome-wide DNA methylation maps during rehydration in gametophores of Physcomitrella patens.

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