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Sample GSM7731912 Query DataSets for GSM7731912
Status Public on Sep 01, 2023
Title Control_0h3
Sample type SRA
 
Source name aerial tissue
Organism Lactuca sativa
Characteristics cultivar: Salinas
age: 18 days
tissue: aerial tissue
treatment: warm-grown
Treatment protocol Abiotic stress treatments were conducted on eighteen-day-old plants. For cold treatment, plants were exposed to low temperature (4°C) for 4 h, 24 h, or 7 days. For high salt stress conditions, plants were treated with 250 mM NaCl. For heat stress conditions, plants were exposed to 34 °C. For drought stress conditions, watering was withheld after ensuring all excess water was drained and absorbed by paper towels from the pots. Following exposure to these stress conditions, leaf samples were collected at 0 h, 5 h, 24 h, and 48 h for each treatment, with the 0 h samples serving as controls.
Growth protocol Plants were grown on soil in pots in a growth chamber at 20°C under a 16-h photoperiod with a light intensity of 350-400 μmol m−2 sec−1.
Extracted molecule total RNA
Extraction protocol Total RNA was isolated for each experimental replicate using Plant RNeasy kit (Qiagen)
RNA libraries were prepared for sequencing using standard Illumina protocols
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 4000
 
Description Ls_abiotic_cpm_value.csv
Data processing Sequenced reads were trimmed for adaptor sequence, and those with N (based underterminded) > 10% or low quality bases (Qscore <=5) >50% were removed.
The filtered reads were mapped to lettuce (v8) whole genome using STAR v2.5.2 with default parameters; the resulting BAM files were used to count reads at the gene-level using featureCounts.
Counts per million (CPM) mapped reads for each of biological samples were calculated using edgeR based on raw counts of STAR.
Assembly: version8; id 37106
Supplementary files format and content: A comma-delimited text files includes CPM values for each of samples
 
Submission date Aug 23, 2023
Last update date Sep 01, 2023
Contact name Sunchung Park
E-mail(s) Sunchung.park@usda.gov
Organization name USDA -ARS
Department ARS-NEA
Lab SPCL
Street address 10300 Baltimore ave, Bldg001
City Beltsville
State/province MD
ZIP/Postal code 20705
Country USA
 
Platform ID GPL26895
Series (1)
GSE241604 Transcriptome profiling of lettuce plants exposed to abiotic stresses
Relations
BioSample SAMN37131238
SRA SRX21475099

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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