Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods

Next generation sequencing offers several ways to study microbial communities. For agri-food sciences, identifying species in diverse food ecosystems is key for both food sustainability and food security. The aim of this study was to compare metabarcoding pipelines and markers to determine fungal di...

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Main Authors: Rué, Olivier, Coton, Monika, Dugat-Bony, Eric, Howell, Kate, Irlinger, Françoise, Legras, Jean-Luc, Loux, Valentin, Michel, Elisa, Mounier, Jérôme, Neuvéglise, Cécile, Sicard, Delphine
Format: Article
Language:English
Published: Peer Community In 2023-10-01
Series:Peer Community Journal
Online Access:https://peercommunityjournal.org/articles/10.24072/pcjournal.321/
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author Rué, Olivier
Coton, Monika
Dugat-Bony, Eric
Howell, Kate
Irlinger, Françoise
Legras, Jean-Luc
Loux, Valentin
Michel, Elisa
Mounier, Jérôme
Neuvéglise, Cécile
Sicard, Delphine
author_facet Rué, Olivier
Coton, Monika
Dugat-Bony, Eric
Howell, Kate
Irlinger, Françoise
Legras, Jean-Luc
Loux, Valentin
Michel, Elisa
Mounier, Jérôme
Neuvéglise, Cécile
Sicard, Delphine
author_sort Rué, Olivier
collection DOAJ
description Next generation sequencing offers several ways to study microbial communities. For agri-food sciences, identifying species in diverse food ecosystems is key for both food sustainability and food security. The aim of this study was to compare metabarcoding pipelines and markers to determine fungal diversity in food ecosystems, from Illumina short reads. We built mock communities combining the most representative fungal species in fermented meat, cheese, wine and bread. Four barcodes (ITS1, ITS2, D1/D2 and RPB2) were tested for each mock and on real fermented products. We created a database, including all mock species sequences for each barcode to compensate for the lack of curated data in available databases. Four bioinformatics tools (DADA2, QIIME, FROGS and a combination of DADA2 and FROGS) were compared. Our results clearly showed that the combined DADA2 and FROGS tool gave the most accurate results. Most mock community species were not identified by the RPB2 barcode due to unsuccessful barcode amplification. When comparing the three rDNA markers, ITS markers performed better than D1/D2, as they are better represented in public databases and have better specificity to distinguish species. Between ITS1 and ITS2, differences in the best marker were observed according to the studied ecosystem. While ITS2 is best suited to characterize cheese, wine and fermented meat communities, ITS1 performs better for sourdough bread communities. Our results also emphasized the need for a dedicated database and enriched fungal-specific public databases with novel barcode sequences for 118 major species in food ecosystems.
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spelling doaj.art-28041c59c4074829b3e26837fc88e2ad2023-11-22T14:22:09ZengPeer Community InPeer Community Journal2804-38712023-10-01310.24072/pcjournal.32110.24072/pcjournal.321Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods Rué, Olivier0https://orcid.org/0000-0001-7517-4724Coton, Monika1https://orcid.org/0000-0002-0148-6802Dugat-Bony, Eric2https://orcid.org/0000-0002-5182-0063Howell, Kate3https://orcid.org/0000-0001-6498-0472Irlinger, Françoise4https://orcid.org/0000-0001-7883-7589Legras, Jean-Luc5https://orcid.org/0000-0002-4006-4389Loux, Valentin6https://orcid.org/0000-0002-8268-915XMichel, Elisa7https://orcid.org/0000-0003-4888-0732Mounier, Jérôme8https://orcid.org/0000-0002-8290-6898Neuvéglise, Cécile9https://orcid.org/0000-0001-5017-7830Sicard, Delphine10https://orcid.org/0000-0002-6570-3212Université Paris-Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France; Université Paris-Saclay, INRAE, BioinfOmics, MIGALE bioinformatics facility, 78350, Jouy-en-Josas, FranceUniv. Brest, INRAE, Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, F-29280 Plouzané, FranceUniversité Paris Saclay, INRAE, AgroParisTech, UMR SayFood, 91120 Palaiseau, FranceSchool of Agriculture, Food and Ecosystem Sciences, Faculty of Science, University of Melbourne Parkville Victoria AustraliaUniversité Paris Saclay, INRAE, AgroParisTech, UMR SayFood, 91120 Palaiseau, FranceSPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, FranceUniversité Paris-Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France; Université Paris-Saclay, INRAE, BioinfOmics, MIGALE bioinformatics facility, 78350, Jouy-en-Josas, FranceSPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, FranceUniv. Brest, INRAE, Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, F-29280 Plouzané, FranceSPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, FranceSPO, Univ Montpellier, INRAE, Institut Agro, Montpellier, FranceNext generation sequencing offers several ways to study microbial communities. For agri-food sciences, identifying species in diverse food ecosystems is key for both food sustainability and food security. The aim of this study was to compare metabarcoding pipelines and markers to determine fungal diversity in food ecosystems, from Illumina short reads. We built mock communities combining the most representative fungal species in fermented meat, cheese, wine and bread. Four barcodes (ITS1, ITS2, D1/D2 and RPB2) were tested for each mock and on real fermented products. We created a database, including all mock species sequences for each barcode to compensate for the lack of curated data in available databases. Four bioinformatics tools (DADA2, QIIME, FROGS and a combination of DADA2 and FROGS) were compared. Our results clearly showed that the combined DADA2 and FROGS tool gave the most accurate results. Most mock community species were not identified by the RPB2 barcode due to unsuccessful barcode amplification. When comparing the three rDNA markers, ITS markers performed better than D1/D2, as they are better represented in public databases and have better specificity to distinguish species. Between ITS1 and ITS2, differences in the best marker were observed according to the studied ecosystem. While ITS2 is best suited to characterize cheese, wine and fermented meat communities, ITS1 performs better for sourdough bread communities. Our results also emphasized the need for a dedicated database and enriched fungal-specific public databases with novel barcode sequences for 118 major species in food ecosystems. https://peercommunityjournal.org/articles/10.24072/pcjournal.321/
spellingShingle Rué, Olivier
Coton, Monika
Dugat-Bony, Eric
Howell, Kate
Irlinger, Françoise
Legras, Jean-Luc
Loux, Valentin
Michel, Elisa
Mounier, Jérôme
Neuvéglise, Cécile
Sicard, Delphine
Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
Peer Community Journal
title Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
title_full Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
title_fullStr Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
title_full_unstemmed Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
title_short Comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
title_sort comparison of metabarcoding taxonomic markers to describe fungal communities in fermented foods
url https://peercommunityjournal.org/articles/10.24072/pcjournal.321/
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