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Sample GSM1980043 Query DataSets for GSM1980043
Status Public on May 11, 2016
Title ZZY10330 rep1
Sample type SRA
 
Source name whole worm
Organism Caenorhabditis nigoni
Characteristics strain: ZZY10330
Stage: young adult male
genotype/variation: Mostly C. nigoni genome, with X chromosome syntenic region replaced by C. briggsae X chromosome (from 16.4 M to the end)
phenotype: sterile
Extracted molecule total RNA
Extraction protocol 300 young adult males were picked for mRNA extraction for each sample for C. briggsae (AF16), C. nigoni (JU1421), ZZY10307 and ZZY10330 with three replicates each. For collection of ZZY10307 and ZZY10330 young adult males, fertile females that carry the introgression were mated with JU1421 males. The male progeny that carry the introgression as judged by the expression of cbr-myo-2::GFP were picked under a fluorescence microscope for mRNA extraction. Total RNA was extracted using TRIzol (Invitrogen) following the manufacturer’s instructions. Illumina’s TruSeq Stranded mRNA Library Preparation Kit was used with 300 ng of total RNA for the construction of sequencing libraries.
RNA libraries were prepared for sequencing using Illumina’s TruSeq Stranded mRNA Library Preparation Kit based on the Kit’s manual
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina MiSeq
 
Data processing Illumina MiSeq with v2 chemistry and software MCS v2.3.0.3 used for basecalling
Sequenced reads were trimmed for adaptor sequence and low-quality sequence using Trimmomatic, then mapped to to C. briggsae genome (cb4) using CLC genomic workbench 8.0. The genome sequence and gene GFF annotation files were obtained from WormBase (WS250). The cutoff for C. nigoni reads are at least 85% similarity and 80% length while for C. birggsae reads, the cutoff are 90% similarity and 85% length. To de novo annotate putative TEs, RepeatMolder was run with the genome of C. nigoni (cn1, this study) and C. briggsae genome (cb4) as an input, respectively using default parameters. The consensus sequences of TEs produced were used as input to RepeatMasker to annotate all the possible TE loci over the two genomes. RMblast was used in the two annotation pipelines to align genome sequence against possible TEs. For the TE quantification, we mapped all reads from mRNAs against the consensus sequences of as described above using CLC genomic workbench 8.0, with a cutoff of at least 75% similarity and 75 % length.
The unique reads mapped to each genes/TEs were then counted with CLC genomic workbench 8.0. Reads Per Kilobase of exon per Megabase of library size (RPKM) were calculated with R package edgeR.
Genome_build: cb4
Supplementary_files_format_and_content: tab-delimited text files include unique reads mapped values for each sample
 
Submission date Dec 23, 2015
Last update date May 15, 2019
Contact name Runsheng Li
E-mail(s) runsheng.lee@gmail.com
Phone 0085255174247
Organization name City University of Hong Kong
Lab Room 2-502, 5/F, Block 2, To Yuen Building
Street address To Yuen Building, 31 To Yuen Street, City University of Hong Kong
City Hong Kong
ZIP/Postal code 00852
Country Hong Kong
 
Platform ID GPL21276
Series (1)
GSE76306 Analysis of Hybrid Incompatability between C nigoni and C briggsae by mRNA sequencing
Relations
BioSample SAMN04365169
SRA SRX1500350

Supplementary file Size Download File type/resource
GSM1980043_ZZY10330_1_TE.txt.gz 3.6 Kb (ftp)(http) TXT
GSM1980043_ZZY10330_1_gene.txt.gz 80.1 Kb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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