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Sample GSM1662167 Query DataSets for GSM1662167
Status Public on Apr 21, 2015
Title yak.U.2
Sample type SRA
 
Source name D. yakuba_Whole embryo
Organism Drosophila yakuba
Characteristics tissue: unfertilized egg
Growth protocol Egg laying and development at room temperature, until embryos have reached the blastoderm stage, according to morphological criteria.
Extracted molecule total RNA
Extraction protocol Trizol extraction (Invitrogen), according to the manufacturer's instructions.
Liraries were made using the standard Illumina Truseq protocol
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 2000
 
Data processing We used the annotation version 5.39 for D. melanogaster and the annotation previously published for D. yakuba, D. pseudoobscura, and D. virilis described in Paris et al. (2013), PLoS Genetics (10.1371/journal.pgen.1003748)
We trimmed all sequenced tags so that their average quality was above 30 and mapped the tags to the transcripts using Bowtie2 [19] with command-line options ‘-a -N 1‘, thereby allowing all possible mappings. We then estimated transcript levels using eXpress [20]. Gene levels were obtained by summing levels over all transcripts of a gene. Gene levels were then normalized to the 95th percentile, log transformed and averaged over replicates. Orthology was assessed from Paris et al. (2013), PLoS Genetics (10.1371/journal.pgen.1003748.
Supplementary_files_format_and_content: six tab-delimited summary tablesincluding normalized and log-transformed FPKM values for all samples. The table is organized as follows: each line corresponds to a particular gene. The corresponding gene ID in the four species and the usual name in D. melanogaster, as well as their genomic localization, and the abundance measurements in all 31 samples. 6 normalizations have been done: simple FPKM (as from eXpress), FPKM+additional median normalization, FPKM + additional 75th percentile normalization, FPKM + additional 95th percentile normalization, FPKM + additional TMM percentile normalization and FPKM + additional quantile normalization.
Supplementary_files_format_and_content: tab table summarizing the maternal/zygotic/maternal-zygotic origin of each gene in each species, according to an SVM classifier. Associated probabilities are indicated.

Gene_abundances_after_p75_normalization.txt: Summary table of abundance measurements in all samples, in all species (FPKM 75th percentile normalization)
Gene_CLASS_after_p75_normalization.txt: Prediction of transcript origin for all species (maternal/zygotic/maternal-zygotic), included their associated probability, based on an SVM classifier (FPKM + 75th percentile normalization)
Gene_CLASS_after_FPKM_normalization.txt: Summary table of abundance measurements in all samples, in all species (FPKM normalization)
Gene_abundances_after_FPKM_normalization.txt: Prediction of transcript origin for all species (maternal/zygotic/maternal-zygotic), included their associated probability, based on an SVM classifier (FPKM normalization)
Gene_abundances_after_p50_normalization.txt: Summary table of abundance measurements in all samples, in all species (FPKM + median normalization)
Gene_CLASS_after_p50_normalization.txt: Prediction of transcript origin for all species (maternal/zygotic/maternal-zygotic), included their associated probability, based on an SVM classifier (FPKM + median normalization)
Gene_abundances_after_p95_normalization.txt: Summary table of abundance measurements in all samples, in all species (FPKM + 95th percentile normalization)
Gene_CLASS_after_p95_normalization.txt: Prediction of transcript origin for all species (maternal/zygotic/maternal-zygotic), included their associated probability, based on an SVM classifier (FPKM + 95th percentile normalization)
Gene_abundances_after_TMM_normalization.txt: Summary table of abundance measurements in all samples, in all species (FPKM + TMM normalization)
Gene_CLASS_after_TMM_normalization.txt: Prediction of transcript origin for all species (maternal/zygotic/maternal-zygotic), included their associated probability, based on an SVM classifier (FPKM + TMM normalization)
Gene_abundances_after_Q_normalization.txt: Summary table of abundance measurements in all samples, in all species (FPKM + quantile normalization)
Gene_CLASS_after_Q_normalization.txt: Prediction of transcript origin for all species (maternal/zygotic/maternal-zygotic), included their associated probability, based on an SVM classifier (FPKM + quantile normalization)
 
Submission date Apr 20, 2015
Last update date May 15, 2019
Contact name Mathilde Paris
Organization name CNRS
Department IGFL
Street address Faculte des sciences de Luminy, case 907
City LYON
ZIP/Postal code 69007
Country France
 
Platform ID GPL13307
Series (1)
GSE68062 Sex bias and maternal contribution to gene expression divergence in Drosophila blastoderm embryos
Relations
BioSample SAMN03492553
SRA SRX1000512

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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