tissue: ovaries strain: vasD5/cyo and vasPH165/cyo
Treatment protocol
Trizol/Phenol Cholorofom extractions
Growth protocol
24 degrees C
Extracted molecule
total RNA
Extraction protocol
Trizol
Library strategy
RNA-Seq
Library source
transcriptomic
Library selection
size fractionation
Instrument model
Illumina Genome Analyzer II
Description
small RNA sequencing
Data processing
The 36nt long Illumina reads were stripped of the 3’ linker and the resulting small RNA sequences were mapped to the Release 5 genome excluding the Uextra portion. Only reads matching the fly genome 100% were used for further analysis. For annotation, we used Flybase for protein coding genes, UCSC for non-coding RNAs and transposons/repeats (repeat masker tracks) and the most recent miRNA catalog. To control for sequencing depth, small RNA counts were normalized to the same total number after subtracting those matching abundant cellular RNAs such as rRNAs and tRNAs. For the piRNA analysis, we selected small RNAs, which exceeded 22 nt in length and were not annotated as miRNA, tRNA, rRNA, snoRNA, snRNA or smRNA.
