NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM918113 Query DataSets for GSM918113
Status Public on May 26, 2012
Title Small RNAs from B73 developing ear - low N
Sample type SRA
 
Source name female inflorescence, B73
Organism Zea mays
Characteristics genotype: B73
tissue: developing ear
developmental stage: V12 growth stage
Growth protocol Developing ear samples were isolated from field-grown plants.
Tissue was collected from field-grown plots that were part of a larger yield-trial experiment where inbreds and hybrids were grown in separate blocks that were split by nitrogen fertilizer treatment (Summer, 2009, Urbana, IL). 40 seeds were sown per 3.6 m row, and rows were spaced 76 cm apart. 4 rows were sown per genotype. Plot was not supplemented with nitrogen.
The top developing ear was excised.
Extracted molecule total RNA
Extraction protocol Total RNA was extracted using TRIzol according to the maufacturer's protocols (Invitrogen). Quantification and quality checks of total RNA was performed by A260/A280 spectrophotometry using a Nanodrop ND-1000, gel electrophoresis, and total RNA Bioanalzyer chips (Agilent).
sRNA library construction was performed according to the instructions of the Illumina Small RNA kit version 1.5. sRNA was size selected in the 10- to 40-nt range. The sRNA library was sequenced as part of a multiplex of libraries (barcode=TGAC) on an Illumina Genome Analyzer. Sequences with an abundance of at least 1 read per million reads were retained in the dataset.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection size fractionation
Instrument model Illumina Genome Analyzer
 
Data processing PERL scripts were designed or scripts from the FASTX toolkit (version 0.0.12) were used to sort multiplexed libraries according to their barcode, to remove the 3' adapter and its artifacts, to filter the 5' adapter, to collapse reads into distinct sequences and to calculate abundance.
sRNAs were aligned to B73 and Mo17 genomic sequences using Novoalign (V2.07.11).

The processed data file 'low_N_developing_ear_abundance_file.txt' file is available as a supplementary file from the Series record.
Genome builds: B73 genome, maizesequence.org release 4a.53 (October, 2009); Mo17 whole genome shotgun clones.
 
Submission date Apr 18, 2012
Last update date May 15, 2019
Contact name Wesley T Barber
E-mail(s) barber4@illinois.edu
Organization name University of Illinois at Urbana-Champaign
Department Department of Crop Sciences
Lab Moose Maize Functional Genomics Lab
Street address 1201 W. Gregory Drive
City Urbana
State/province IL
ZIP/Postal code 61801
Country USA
 
Platform ID GPL9141
Series (1)
GSE37411 Small RNA sequencing in maize hybrids and inbreds
Relations
SRA SRX143314
BioSample SAMN00858179

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

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap