Under-detection of endospore-forming Firmicutes in metagenomic data
Abstract
Microbial diversity studies based on metagenomic sequencing have greatly enhanced our knowledge of the microbial world. However, one caveat is the fact that not all microorganisms are equally well detected, questioning the universality of this approach. Firmicutes are known to be a dominant bacterial group. Several Firmicutes species are endospore formers and this property makes them hardy in potentially harsh conditions, and thus likely to be present in a wide variety of environments, even as residents and not functional players. While metagenomic libraries can be expected to contain endospore formers, endospores are known to be resilient to many traditional methods of DNA isolation and thus potentially undetectable. In this study we evaluated the representation of endospore-forming Firmicutes in 73 published metagenomic datasets using two molecular markers unique to this bacterial group (spo0A and gpr). Both markers were notably absent in well-known habitats of Firmicutes such as soil, with spo0A found only in three mammalian gut microbiomes. A tailored DNA extraction method resulted in the detection of a large diversity of endospore-formers in amplicon sequencing of the 16S rRNA and spo0A genes. However, shotgun classification was still poor with only a minor fraction of the community assigned to Firmicutes. Thus, removingmore »
- Authors:
-
- Univ. of Neuchatel (Switzerland). Inst. of Biology, Lab. of Microbiology
- Univ. of Neuchatel (Switzerland). Inst. of Biology, Lab. of Microbiology; Swiss Inst. of Bioformatics, Lausanne (Switzerland). Vital-IT Group
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1201745
- Grant/Contract Number:
- 31003A-132358/1; 31003A_152972
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Computational and Structural Biotechnology Journal
- Additional Journal Information:
- Journal Volume: 13; Journal Issue: C; Journal ID: ISSN 2001-0370
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; endospores; gpr; metagenomics; profile analysis; spo0A
Citation Formats
Filippidou, Sevasti, Junier, Thomas, Wunderlin, Tina, Lo, Chien -Chi, Li, Po -E, Chain, Patrick S., and Junier, Pilar. Under-detection of endospore-forming Firmicutes in metagenomic data. United States: N. p., 2015.
Web. doi:10.1016/j.csbj.2015.04.002.
Filippidou, Sevasti, Junier, Thomas, Wunderlin, Tina, Lo, Chien -Chi, Li, Po -E, Chain, Patrick S., & Junier, Pilar. Under-detection of endospore-forming Firmicutes in metagenomic data. United States. https://doi.org/10.1016/j.csbj.2015.04.002
Filippidou, Sevasti, Junier, Thomas, Wunderlin, Tina, Lo, Chien -Chi, Li, Po -E, Chain, Patrick S., and Junier, Pilar. Sat .
"Under-detection of endospore-forming Firmicutes in metagenomic data". United States. https://doi.org/10.1016/j.csbj.2015.04.002. https://www.osti.gov/servlets/purl/1201745.
@article{osti_1201745,
title = {Under-detection of endospore-forming Firmicutes in metagenomic data},
author = {Filippidou, Sevasti and Junier, Thomas and Wunderlin, Tina and Lo, Chien -Chi and Li, Po -E and Chain, Patrick S. and Junier, Pilar},
abstractNote = {Microbial diversity studies based on metagenomic sequencing have greatly enhanced our knowledge of the microbial world. However, one caveat is the fact that not all microorganisms are equally well detected, questioning the universality of this approach. Firmicutes are known to be a dominant bacterial group. Several Firmicutes species are endospore formers and this property makes them hardy in potentially harsh conditions, and thus likely to be present in a wide variety of environments, even as residents and not functional players. While metagenomic libraries can be expected to contain endospore formers, endospores are known to be resilient to many traditional methods of DNA isolation and thus potentially undetectable. In this study we evaluated the representation of endospore-forming Firmicutes in 73 published metagenomic datasets using two molecular markers unique to this bacterial group (spo0A and gpr). Both markers were notably absent in well-known habitats of Firmicutes such as soil, with spo0A found only in three mammalian gut microbiomes. A tailored DNA extraction method resulted in the detection of a large diversity of endospore-formers in amplicon sequencing of the 16S rRNA and spo0A genes. However, shotgun classification was still poor with only a minor fraction of the community assigned to Firmicutes. Thus, removing a specific bias in a molecular workflow improves detection in amplicon sequencing, but it was insufficient to overcome the limitations for detecting endospore-forming Firmicutes in whole-genome metagenomics. In conclusion, this study highlights the importance of understanding the specific methodological biases that can contribute to improve the universality of metagenomic approaches.},
doi = {10.1016/j.csbj.2015.04.002},
journal = {Computational and Structural Biotechnology Journal},
number = C,
volume = 13,
place = {United States},
year = {Sat Apr 25 00:00:00 EDT 2015},
month = {Sat Apr 25 00:00:00 EDT 2015}
}
Web of Science
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journal, December 2019
- Gorsuch, John P.; Woodruff, Peyton
- Heliyon, Vol. 5, Issue 12
Differential fecal microbiota are retained in broiler chicken lines divergently selected for fatness traits
journal, November 2016
- Hou, Qiangchuan; Kwok, Lai-Yu; Zheng, Yi
- Scientific Reports, Vol. 6, Issue 1
Introducing the sporobiota and sporobiome
journal, June 2017
- Tetz, George; Tetz, Victor
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A Combination of Extreme Environmental Conditions Favor the Prevalence of Endospore-Forming Firmicutes
journal, November 2016
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- Frontiers in Microbiology, Vol. 7
Metagenomic Sequencing of Diamondback Moth Gut Microbiome Unveils Key Holobiont Adaptations for Herbivory
journal, April 2017
- Xia, Xiaofeng; Gurr, Geoff M.; Vasseur, Liette
- Frontiers in Microbiology, Vol. 8
High-Alpine Permafrost and Active-Layer Soil Microbiomes Differ in Their Response to Elevated Temperatures
journal, April 2019
- Luláková, Petra; Perez-Mon, Carla; Šantrůčková, Hana
- Frontiers in Microbiology, Vol. 10