Tools
ToolsHsieh, Shen-Yuan, Tariq, Mohammad A., Telatin, Andrea, Ansorge, Rebecca, Adriaenssens, Evelien M., Savva, George M., Booth, Catherine, Wileman, Tom, Hoyles, Lesley and Carding, Simon R. (2021) Comparison of PCR versus PCR-Free DNA library preparation for characterising the human faecal virome. Viruses-Basel, 13 (10). ISSN 1999-4915
Preview |
PDF (Published_Version)
- Published Version
Available under License Creative Commons Attribution. Download (2MB) | Preview |
Abstract
The human intestinal microbiota is abundant in viruses, comprising mainly bacteriophages, occasionally outnumbering bacteria 10:1 and is termed the virome. Due to their high genetic diversity and the lack of suitable tools and reference databases, the virome remains poorly characterised and is often referred to as “viral dark matter”. However, the choice of sequencing platforms, read lengths and library preparation make study design challenging with respect to the virome. Here we have compared the use of PCR and PCR-free methods for sequence-library construction on the Illumina sequencing platform for characterising the human faecal virome. Viral DNA was extracted from faecal samples of three healthy donors and sequenced. Our analysis shows that most variation was reflecting the individually specific faecal virome. However, we observed differences between PCR and PCR-free library preparation that affected the recovery of low-abundance viral genomes. Using three faecal samples in this study, the PCR library preparation samples led to a loss of lowerabundance vOTUs evident in their PCR-free pairs (vOTUs 128, 6202 and 8364) and decreased the alpha-diversity indices (Chao1 p-value = 0.045 and Simpson p-value = 0.044). Thus, differences between PCR and PCR-free methods are important to consider when investigating “rare” members of the gut virome, with these biases likely negligible when investigating moderately and highly abundant viruses.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding Information: This work was supported in part by the UK Biotechnology and Biological Sciences Research Council (BBSRC) and BBSRC Institute Strategic Program grant BB/R012490/1 to the Gut Microbes and Health Research Programme and its constituent projects BBS/E/F/000PR10353 and BBS/E/F/000PR10356 410 (S.R.C.).We would like to acknowledge the assistance of Moreno Zolfo and Nicola Segata (University of Trento, Italy) with ViromeQC analysis and providing mapping data. We would also like to thank the donors who participated in this study. Funding Information: Funding: This work was supported in part by the UK Biotechnology and Biological Sciences Research Council (BBSRC) and BBSRC Institute Strategic Program grant BB/R012490/1 to the Gut Microbes and Health Research Programme and its constituent projects BBS/E/F/000PR10353 and BBS/E/F/000PR10356 410 (S.R.C.). Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. |
| Uncontrolled Keywords: | bacteriophage,pcr bias,virome,infectious diseases,virology ,/dk/atira/pure/subjectarea/asjc/2700/2725 |
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School Faculty of Science > School of Biological Sciences Faculty of Medicine and Health Sciences > School of Health Sciences |
| UEA Research Groups: | Faculty of Medicine and Health Sciences > Research Groups > Gastroenterology and Gut Biology Faculty of Medicine and Health Sciences > Research Centres > Norwich Institute for Healthy Aging Faculty of Science > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Groups > Norwich Epidemiology Centre Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health Faculty of Medicine and Health Sciences > Research Centres > Metabolic Health |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 02 Nov 2021 01:58 |
| Last Modified: | 27 Nov 2024 10:34 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/81940 |
| DOI: | 10.3390/v13102093 |
Downloads
Downloads per month over past year
Actions (login required)
 |
View Item |