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The PR2 database

@pr2-database.bsky.social
253 followers 26 following 47 posts

PR2 is a set of three interconnected sequence public databases focusing on protist taxonomic groups: a reference sequence database (pr2), a primer database (pr2-primers) and a metabarcode database (metapr2). pr2-database.org

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The PR2 database @pr2-database.bsky.social · 01/07/2026
Major update of the metaPR2 database with 120 new datasets and more than 18,000 samples. pr2-database.org/post/news/20...
pr2-database.org
metaPR2 version 4.0.0 | The PR2 databases
Adding 120 datasets to the database.
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Daniel Vaulot @daniel-vaulot.bsky.social · 27/03/2026
New article on #protist global distributions combining the #Mixoplankton and #metaPR2 databases with revised functional annotations led by @lusantof.bsky.social, Michaela E. Larsson, and Suzana Leles with Aditee Mitra and Emile Faure. Now available on Ocean Microbiology rdcu.be/fanlx
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The PR2 database @pr2-database.bsky.social · 27/02/2026
Docker containers are now available for the three PR2 applications: - pr2-database: reférence database - pr2-primers: primer database and analysis - metapr2: metabarcode database and visualization. This by far the easiest way to use these databases on your computer. hub.docker.com/repositories...
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The PR2 database @pr2-database.bsky.social · 05/02/2026
For those of you who are using metaPR2 extensively, a good alternative to installing the R package which can cause trouble because of dependencies, you can try the newly available docker container: hub.docker.com/repository/d...
hub.docker.com
Using Docker for work? We recommend signing in with your work email address.
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The PR2 database @pr2-database.bsky.social · 23/11/2025
Using PR2 www.nature.com/articles/s41...
nature.com
Rare microbial relict sheds light on an ancient eukaryotic supergroup - Nature
The discovery of an unusual protist named Solarion arienae, which has a mitochondrial genome with some intriguing features, provides insight into the early radiation of eukaryotic groups.
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The PR2 database @pr2-database.bsky.social · 10/11/2025
Using the PR2 database...
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The PR2 database @pr2-database.bsky.social · 28/10/2025
PR2 primers version 2.1.0 has been released. This does not include any new primer, but now the database uses the latest version of PR2 (5.1.1) to perform in silico analyses. Access here: app.pr2-primers.org
app.pr2-primers.org
Primer database <div> <img src="pr2_logo.png" width="80"/> The PR2 primer database - v. 2.1.0 </div>
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The PR2 database @pr2-database.bsky.social · 28/10/2025
Version 5.1.1 of the PR2 database has been released. The major novelty is the inclusion of the recently published eKOI database (coi gene- doi.org/10.1093/data...) in the web interface. The 18S rRNA database is not changed so you can use 5.1.0 or 5.1.1 for metabarcode annotations
doi.org
A novel taxonomic database for eukaryotic mitochondrial cytochrome oxidase subunit I gene (eKOI), with a focus on protists diversity
Abstract. Metabarcoding has emerged as a robust method for assessing biodiversity patterns by retrieving environmental DNA directly from ecosystems. While
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The PR2 database @pr2-database.bsky.social · 06/10/2025
metaPR2 version 3.0 has just been released. Here are the major changes: - Metabarcodes (ASVs) are now annotated with the latest version of the PR2 reference sequence database (5.1.0). - 8 new published datasets have been added from the Arctic and from the South West Pacific. app.metapr2.org
app.metapr2.org
MetaPR2
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The PR2 database @pr2-database.bsky.social · 29/06/2025
Javier is the co-coordinaror of PR2... Warn congratulations.
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The PR2 database @pr2-database.bsky.social · 28/06/2025
A paper using the PR2 and metaPR2 database.
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The PR2 database @pr2-database.bsky.social · 07/05/2025
Nice paper making use of PR2
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Håvard Kauserud @drhyfe.bsky.social · 10/04/2025
@daniel-vaulot.bsky.social presenting the @pr2-database.bsky.social at our DNA metabarcoding course at @biovitenskap.bsky.social A very good new addition to our biannual course 👏
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Anthony M. Bonacolta @ambonacolta.bsky.social · 03/04/2025
Grateful I got the opportunity to contribute to this amazing resource #ProtistsOnSky
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Anders K. Krabberød @krabberod.bsky.social · 03/04/2025
I am very happy that ROD (The Ribosomal Operon Database) is now included in the outstanding PR2 web interface, enhancing its accessibility and utility. I hope to make some updates to ROD in the near future. with @drhyfe.bsky.social
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The PR2 database @pr2-database.bsky.social · 03/04/2025
Announcing the new release of the PR2 database, version 5.1. pr2-database.org/post/news/20... Very big thanks to all the contributors: @fonamental.bsky.social @ambonacolta.bsky.social @krabberod.bsky.social and more... A few highlights:
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The PR2 database @pr2-database.bsky.social · 02/04/2025
The PR2, metaPR2 and PR2-primers websites will be off in the coming days as we are switching from R 3.6 to R 4.4.
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The PR2 database @pr2-database.bsky.social · 28/03/2025
Protists are not just sequences, they have incredible shapes...
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The PR2 database @pr2-database.bsky.social · 26/03/2025
New paper using PR2.
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The PR2 database @pr2-database.bsky.social · 20/03/2025
Looks like a very good tool to use with the PR2 database.
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Alexis Stamatakis @stamatak.bsky.social · 19/03/2025
Check out raxtax, our new open-source tool for taxonomic classification of barcoding sequences, it's 2.7-1000 times faster than competing tools and also implements fancy uncertainty scores: www.biorxiv.org/content/10.1...
biorxiv.org
raxtax: A k-mer-based non-Bayesian Taxonomic Classifier
Taxonomic classification in biodiversity studies is the process of assigning the anonymous sequences of a marker gene (barcode) to a specific lineage using a reference database that contains named seq...
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The PR2 database @pr2-database.bsky.social · 14/03/2025
A tool to use with the metaPR2 datasets ?
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The PR2 database @pr2-database.bsky.social · 01/03/2025
All PR2 shiny servers are back up and running...
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Daniel Vaulot @daniel-vaulot.bsky.social · 27/02/2025
From the Richter lab in Barcelona... new species are always exciting...
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Daniel Vaulot @daniel-vaulot.bsky.social · 28/02/2025
Join a world renowned marine lab in France. New Junior Professor Chair (CPJ) opened in the Biological Station in Roscoff. The position is focused on the ecological, evolutionary, and functional roles of marine fungi, crucial to understanding our oceans. www.sb-roscoff.fr/fr/2025/02/2...
sb-roscoff.fr
Open position Junior Professor Chair (CPJ)
Open position Junior Professor Chair (CPJ) 2025. CNRS EE-BIO
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The PR2 database @pr2-database.bsky.social · 07/02/2025
Very interesting paper #usingPR2
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Micah Dunthorn @micahdunthorn.bsky.social · 23/01/2025
Registration is now open for the ForBio/UiO course “Bioinformatics for environmental DNA sequencing” @biovitenskap.bsky.social @drhyfe.bsky.social @krabberod.bsky.social @ramalok.bsky.social www.forbio.uio.no/events/cours...
forbio.uio.no
ForBio and UiO/IBV course: Bioinformatics for environmental DNA sequencing - ForBio
Read this story on the University of Oslo's website.
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The PR2 database @pr2-database.bsky.social · 20/12/2024
This very interesting Nature paper uses the metaPR2 database to assess the distribution of DPH containing diatoms.
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Chrats Melkonian @cmelkonian.bsky.social · 15/12/2024
A new #StarterPack with scientist specialized in microbial bioinformatics - #MicroBioInf. Please comment if you would like to be added: go.bsky.app/5h7VaGm Looking forward to the discussions!
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The PR2 database @pr2-database.bsky.social · 12/12/2024
#usingpr2 www.sciencedirect.com/science/arti...
sciencedirect.com
Indications of a benthic foraminifer Cribrononion gnythosuturatum to salinities revealed by eDNA metabarcoding and morphological methods
Cribrononion gnythosuturatum is a widely distributed benthic foraminifer. However, its adaptability to salinity changes is still poorly understood. To…
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Javier del Campo @fonamental.bsky.social · 12/12/2024
Happy to be part of this effort led by Rubén González-Miguéns: A Novel Taxonomic Database for eukaryotic Mitochondrial Cytochrome Oxidase subunit I Gene (eKOI) www.biorxiv.org/content/10.1101/202… eKOI will be integrated into @pr2-database.bsky.social 🙌 #protistsonsky
biorxiv.org
A Novel Taxonomic Database for eukaryotic Mitochondrial Cytochrome Oxidase subunit I Gene (eKOI): Enhancing taxonomic resolution at community-level in metabarcoding analyses
Metabarcoding has emerged as a robust method for understanding biodiversity patterns by retrieving environmental DNA (eDNA) directly from ecosystems. Its low cost and accessibility have extended its…
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Daniel Vaulot @daniel-vaulot.bsky.social · 10/12/2024
New preprint led by Ruben Gonzalez-Miguens for a new coi database that should be useful to annotate metabarcoding datasets with protists. www.biorxiv.org/content/10.1...
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The PR2 database @pr2-database.bsky.social · 08/12/2024
link.springer.com/article/10.1... #usingpr2
link.springer.com
Host genotype-specific rhizosphere protists associate soil-borne viral disease resistance in wheat - Plant and Soil
Purpose The importance of protists in plant growth and health has already been widely studied. However, protists are rarely associated with soil-borne viral disease and how plant genotype can affect t...
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The PR2 database @pr2-database.bsky.social · 05/12/2024
#usingpr2
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The PR2 database @pr2-database.bsky.social · 05/12/2024
#usingpr2 aslopubs.onlinelibrary.wiley.com/doi/full/10....
Sampling stations in the PacifcAbundance at different stations for eukaryotes and cyanobacteria
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The PR2 database @pr2-database.bsky.social · 05/12/2024
Citing metapr2 bmcbiol.biomedcentral.com/articles/10....
bmcbiol.biomedcentral.com
Protists and protistology in the Anthropocene: challenges for a climate and ecological crisis - BMC Biology
Eukaryotic microorganisms, or “protists,” while often inconspicuous, play fundamental roles in the Earth ecosystem, ranging from primary production and nutrient cycling to interactions with human heal...
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The PR2 database @pr2-database.bsky.social · 05/12/2024
#usingpr2 journals.plos.org/plosone/arti...
journals.plos.org
Thiamin (vitamin B1, thiamine) transfer in the aquatic food web from lower to higher trophic levels
Micronutrients such as vitamins are transferred from lower to higher trophic levels, but no general ecological concept describes the factors regulating this process. Here, we investigated thiamin (thi...
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The PR2 database @pr2-database.bsky.social · 30/11/2024
A new database of benthic forams 18S sequences that will be hopefully incorporated in the next version of PR2. www.nature.com/articles/s41...
nature.com
BFR2: a curated ribosomal reference dataset for benthic foraminifera - Scientific Data
Scientific Data - BFR2: a curated ribosomal reference dataset for benthic foraminifera
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The PR2 database @pr2-database.bsky.social · 23/11/2024
#usingpr2
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The PR2 database @pr2-database.bsky.social · 21/11/2024
www.nature.com/articles/s42... #usingpr2
nature.com
Ecological interactions between marine RNA viruses and planktonic copepods - Communications Biology
Investigations on copepod–virus interactions suggest ecological impacts of RNA viruses on population dynamics and physiology of marine zooplankton.
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The PR2 database @pr2-database.bsky.social · 21/11/2024
www.sciencedirect.com/science/arti... #usingpr2
sciencedirect.com
Urban greenspaces shape soil protist communities in a location-specific manner
The impacts of urbanization on aboveground biodiversity are well studied, and its impact on soil microorganisms are also receiving increased attention…
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The PR2 database @pr2-database.bsky.social · 19/11/2024
go.bsky.app/KTiemwn
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The PR2 database @pr2-database.bsky.social · 19/11/2024
link.springer.com/article/10.1... #usingpr2
link.springer.com
Dynamics of Haptophytes (Eukaryota, Hacrobia) Revealed via Short-Term Sampling in the South China Sea - Journal of Ocean University of China
Haptophytes (Eukaryota, Hacrobia) play a crucial role in the energy budget and element cycling of diverse aquatic ecosystems due to their ability to engage in both phototrophic and mixotrophic nutriti...
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The PR2 database @pr2-database.bsky.social · 19/11/2024
journals.asm.org/doi/full/10.... #usingpr2
journals.asm.org
Viral dynamics in a high-rate algal pond reveals a burst of Phycodnaviridae diversity correlated with episodic algal mortality | mBio
The virosphere is ubiquitous, but we have yet to characterize many environments where viruses exist. In an industrial polyculture of microalgae, a wealth of viruses persist, their diversity and dynami...
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The PR2 database @pr2-database.bsky.social · 19/11/2024
The PR2 paper (Guillou et al. 2012) has been cited more than 1700 times. scholar.google.com/scholar?hl=f...
scholar.google.com
Google Scholar
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The PR2 database @pr2-database.bsky.social · 19/11/2024
Welcome to the PR2 databases BlueSky account. We will post here important news about the PR2 sequence databases as well as papers using the databases. pr2-database.org
The PR web site
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