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Series GSE261432 Query DataSets for GSE261432
Status Public on Mar 13, 2024
Title The impact of PCR duplication on RNAseq data generated using NovaSeq 6000, NovaSeq X, AVITI and G4 sequencers
Organism Homo sapiens
Experiment type Expression profiling by high throughput sequencing
Summary Gene expression profiles generated with RNA sequencing can be biased by RNA amount and methods utilised for cDNA library generation. Polymerase chain reaction (PCR) amplification can generate high PCR duplicate proportions and introduce bias in transcript counts. In this study, we investigate the impact of input amount and PCR cycle number on the PCR duplication rate and on the RNA-seq data quality. We used a range of inputs (1 ng - 1,000 ng) and assessed the PCR duplication rate using unique molecular identifiers (UMIs). For broader applicability, we sequenced the data on four different short-read sequencing platforms: Illumina NovaSeq 6000, Illumina NovaSeq X, Element Biosciences AVITI, and Singular Genomics G4. We highlight the limitations of using input amounts below 125 ng and the advantages for using UMIs for deduplication. We contrast the data obtained from different sequencers and discuss the benefits and drawbacks of using Illumina library conversion kits.
 
Overall design bulk RNA-seq of human liver, serial dilution of 1 ng to 1000 ng, sequencing performed on 4 sequencers (NovaSeq 6000, NovaSeq X, AVITI and G4)
 
Contributor(s) Zajac N, Vlachos IS, Sajibu S, Opitz L, Wang S, Chittur SV, Mason CE, Knudtson KL, Ashton JM, Aquino C
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Submission date Mar 12, 2024
Last update date Mar 14, 2024
Contact name Genome Informatics
E-mail(s) fgcz.gi@gmail.com
Organization name ETH ZURICH / University of Zurich
Department Functional Genomics Center Zurich (FGCZ)
Street address Winterthurerstrasse 190
City Zurich
ZIP/Postal code 8057
Country Switzerland
 
Platforms (4)
GPL18573 Illumina NextSeq 500 (Homo sapiens)
GPL24676 Illumina NovaSeq 6000 (Homo sapiens)
GPL34281 Illumina NovaSeq X (Homo sapiens)
Samples (144)
GSM8143919 Element AVITI liver, mRNA derived cDNA, 0ng input, 17 PCR cycles
GSM8143920 Element AVITI liver, mRNA derived cDNA, 0ng input, 19 PCR cycles
GSM8143921 Element AVITI liver, mRNA derived cDNA, 0ng input, 21 PCR cycles
Relations
BioProject PRJNA1086933

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Supplementary file Size Download File type/resource
GSE261432_RAW.tar 52.2 Mb (http)(custom) TAR (of TXT)
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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