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. Author manuscript; available in PMC: 2016 Nov 15.
Published in final edited form as: J Healthc Eng. 2016;2016:10.1155/2016/3617572. doi: 10.1155/2016/3617572

Table 1.

Sequencing assays

Characteristic DNA sequencing RNA-seq
Targeted genomic regions Whole exome Whole genome Targeted Transcriptome profiling
Capture method* Amplicon-based targeting; hybrid capture; in-solution capture Hybrid capture; in-solution capture None Hybridization only; hybridization and extension; multiplexed PCR None
Amount of genome/transcriptome sequenced ~150 bp – 62 Mb (≤ 2% of genome) ~30 – 60 Mb (1 – 2% of genome) ~3 Gb (≥ 95% of genome) Variable: transcripts of ~10 – 1000 genes Entire transcriptome
Amplification Yes Yes Not required Yes Required for low-quantity RNA samples
Sequencing depth 100 – 1000 × 80 – 100 × 30 – 50 × 0.3 – 25 million reads 15 – 200 million reads
Amount of sequence data generated per sample ~0.3 – 5 Gb ~4 – 5 Gb ~90 Gb ~0.5 – 3 Gb ~5 – 6 Gb

bp, base pairs; Mb, megabases; Gb, gigabases; PCR, polymerase chain reaction.

*

Method used to select genomic regions for sequencing.

Number of times a single base is read during a sequencing run.

A greater number of reads is needed to detect rare transcripts.