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Sample GSM2945844 Query DataSets for GSM2945844
Status Public on Jan 30, 2020
Title HC3
Sample type SRA
 
Source name Aspergillus niger
Organism Aspergillus niger
Characteristics strain: DS03043
growth phase: oxygen limited middle phase
Treatment protocol oxygen limitation fermentation
Growth protocol A 5 L fermenter with an electronic balance was used for the fed-batch cultivations with the agitation rate at 375 rpm and the aeration at 1 vvm. During the cultivation, the overpressure was maintained at 0.05 MPa and the temperature was at 34 ºC .The broth pH was maintained at 4.5.
Extracted molecule total RNA
Extraction protocol After sampling at 18h,24h,42h and 66h, the broth was immediately frozen in liquid nitrogen and stored at -80 ºC for RNA extraction.
RNA libraries were prepared for sequencing using standard Illumina protocols
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 2000
 
Description HC_FPKM.xls
Data processing Illumina Casava1.7 software used for basecalling.
The clean reads were produced after the raw reads were filtered to the following criteria: remove reads with sequence adaptors; remove reads with more than 10% ‘N’ bases; and remove low-quality reads, which have more than 50% QA ≤ 10 bases.
Clean reads were then aligned to the reference genome and no more than three mismatches were allowed in the alignment for each read. Reads that could be uniquely mapped to a gene were used to calculate the expression level. The gene expression level was quantified using RSEM (Li and Dewey 2011).
The formula to calculate FPKM (Fragments Per Kilobase of exon model per Million mapped fragments) value is as follows:FPKM = 106C/(NL/103), in which FPKM (A) is the expression level of gene A. C is counts of fragments that uniquely mapped to the gene A. N is total counts of fragments that uniquely mapped to the reference genes. L is the base counts of the coding region of gene A.
Genome_build: A. niger strain CBS 513.88 (Genbank ID:GCA_000002855.2)
Supplementary_files_format_and_content: excel files including FPKM values for each Sample
 
Submission date Jan 23, 2018
Last update date Jan 30, 2020
Contact name Weiqiang Cao
E-mail(s) 362988935@qq.com
Organization name East China University of Science and Technology
Street address 130 Meilong Road
City Shanghai
State/province Shanghai
ZIP/Postal code 200237
Country China
 
Platform ID GPL21721
Series (1)
GSE109525 Omics analysis with modeling reveals global adaptation of Aspergillus niger to hypoxic condition
Relations
BioSample SAMN08386883
SRA SRX3593067

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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