Caporaso J. Gregory

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Caporaso
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J. Gregory
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  • Preprint
    Current understanding of the human microbiome
    ( 2018-02-05) Gilbert, Jack A. ; Blaser, Martin J. ; Caporaso, J. Gregory ; Jansson, Janet K. ; Lynch, Susan V. ; Knight, Rob
    Our understanding of the link between the human microbiome and disease, including obesity, inflammatory bowel disease, arthritis and autism, is rapidly expanding. Improvements in the throughput and accuracy of DNA sequencing of the genomes of microbial communities associated with human samples, complemented by analysis of transcriptomes, proteomes, metabolomes and immunomes, and mechanistic experiments in model systems, have vastly improved our ability to understand the structure and function of the microbiome in both diseased and healthy states. However, many challenges remain. In this Review, we focus on studies in humans to describe these challenges, and propose strategies that leverage existing knowledge to move rapidly from correlation to causation, and ultimately to translation.
  • Article
    Genomic Standards Consortium projects
    (Genomic Standards Consortium, 2014) Field, Dawn ; Sterk, Peter ; Kottmann, Renzo ; De Smet, Wim ; Amaral-Zettler, Linda A. ; Cochrane, Guy R. ; James, Cole R. ; Davies, Neil ; Dawyndt, Peter ; Garrity, George M. ; Gilbert, Jack A. ; Glockner, Frank Oliver ; Hirschman, Lynette ; Klenk, Hans-Peter ; Knight, Rob ; Kyrpides, Nikos C. ; Meyer, Folker ; Karsch-Mizrachi, Ilene ; Morrison, Norman ; Robbins, Robert J. ; San Gil, Inigo ; Sansone, Susanna-Assunta ; Schriml, Lynn M. ; Tatusova, Tatiana ; Ussery, David W. ; Yilmaz, Pelin ; White, Owen ; Wooley, John ; Caporaso, J. Gregory
    The Genomic Standards Consortium (GSC) is an open-membership community working towards the development, implementation and harmonization of standards in the field of genomics. The mission of the GSC is to improve digital descriptions of genomes, metagenomes and gene marker sequences. The GSC started in late 2005 with the defined task of establishing what is now termed the “Minimum Information about any Sequence” (MIxS) standard [1,2]. As an outgrowth of the activities surrounding the creation and implementation of the MixS standard there are now 18 projects within the GSC [3]. These efforts cover an ever widening range of standardization activities. Given the growth of projects and to promote transparency, participation and adoption the GSC has developed a “GSC Project Description Template”. A complete set of GSC Project Descriptions and the template are available on the GSC website. The GSC has an open policy of participation and continues to welcome new efforts. Any projects that facilitate the standard descriptions and exchange of data are potential candidates for inclusion under the GSC umbrella. Areas that expand the scope of the GSC are encouraged. Through these collective activities we hope to help foster the growth of the ‘bioinformatics standards’ community. For more information on the GSC and its range of projects, please see http://gensc.org/.
  • Article
    Improved bacterial 16S rRNA gene (V4 and V4-5) and fungal internal transcribed spacer marker gene primers for microbial community surveys
    (American Society for Microbiology, 2015-12-22) Walters, William ; Hyde, Embriette R. ; Berg-Lyons, Donna ; Ackermann, Gail ; Humphrey, Greg ; Parada, Alma ; Gilbert, Jack A. ; Jansson, Janet K. ; Caporaso, J. Gregory ; Fuhrman, Jed A. ; Apprill, Amy ; Knight, Rob
    Designing primers for PCR-based taxonomic surveys that amplify a broad range of phylotypes in varied community samples is a difficult challenge, and the comparability of data sets amplified with varied primers requires attention. Here, we examined the performance of modified 16S rRNA gene and internal transcribed spacer (ITS) primers for archaea/bacteria and fungi, respectively, with nonaquatic samples. We moved primer bar codes to the 5′ end, allowing for a range of different 3′ primer pairings, such as the 515f/926r primer pair, which amplifies variable regions 4 and 5 of the 16S rRNA gene. We additionally demonstrated that modifications to the 515f/806r (variable region 4) 16S primer pair, which improves detection of Thaumarchaeota and clade SAR11 in marine samples, do not degrade performance on taxa already amplified effectively by the original primer set. Alterations to the fungal ITS primers did result in differential but overall improved performance compared to the original primers. In both cases, the improved primers should be widely adopted for amplicon studies.