Next – Generation Sequencing

LAB
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  • 27 lessons
  • 0 quizzes
  • 10 week duration

Removal of rRNA and Adapter Trimming

Trimming and Filtering

Although the overall data looks acceptable, we need to remove adapter sequences and low quality
bases (Q < 20) from the ends of the reads using “Trim Galore!” [15]. Install Trim Galore in galaxy and quality-filter the data by using default parameters, paired end, and universal Illumina adaptor option (you may need to change the data type of files to “fastqsanger”). Once the trimming and filtering is complete, check the quality of the trimmed data using FastQC tool. Now our data is ready to be used for further analysis. Save these QC filtered fastq files to an analysis folder.