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Daniel Vaulot

@daniel-vaulot.bsky.social

Biological oceanographer focusing on marine protists. Developing the PR2 databases for metabarcoding: https://pr2-database.org Emeritus at CNRS (SBR, Roscoff) and Guest Investigator at the University of Oslo (AQUA section, IBV). https://daniel-vaulot.fr

1,794 Followers  |  727 Following  |  92 Posts  |  Joined: 17.11.2023
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Posts by Daniel Vaulot (@daniel-vaulot.bsky.social)

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Docker containers are now available for the three PR2 applications:
- pr2-database: refΓ©rence 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...

27.02.2026 14:15 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Using Docker for work? We recommend signing in with your work email address.

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...

05.02.2026 17:32 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Paris prosecutors raid French offices of Elon Musk's X The search is part of a preliminary investigation into a range of alleged offenses, including reports that the AI chatbot Grok helped disseminate Holocaust denial content and sexual deepfakes.

πŸ‘€

03.02.2026 11:31 β€” πŸ‘ 200    πŸ” 34    πŸ’¬ 5    πŸ“Œ 6
Identification of a deep-branching lineage of algae using environmental plastid genomes - Nature Communications Here, the authors leverage data from the Tara Oceans expeditions to perform a phylogeny-guided plastid genome-resolved metagenomic survey and provide 660 non-redundant plastid genomes from marine alga...

Just on time for the holidays! Happy to share the published version of the discovery of leptophytes, a new deep-branching and widespread group of microalgae based on plastid MAGs (ptMAGs). Now with additional support from a mitochondrial MAG (mtMAG) of leptophytes.
www.nature.com/articles/s41...

18.12.2025 09:48 β€” πŸ‘ 59    πŸ” 24    πŸ’¬ 2    πŸ“Œ 1
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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.

Using PR2

www.nature.com/articles/s41...

23.11.2025 15:47 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Superb pictures...

14.11.2025 07:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Fantastic work done with a very large number of RCC strains.

03.11.2025 10:48 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

Another piece of fascinating work done with RCC strains.

03.11.2025 10:49 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Superbe....

29.10.2025 19:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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We have added more than 900 new GenBank sequences to the RCC database that are linked to the web page of the corresponding strains.

29.10.2025 10:10 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

New version of PR2 that now includes the eKOI coi database recently published.

28.10.2025 09:11 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Primer database <div> <img src="pr2_logo.png" width="80"/> The PR2 primer database - v. 2.1.0 </div>

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

28.10.2025 09:02 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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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

New publication: "A novel taxonomic database for eukaryotic mitochondrial cytochrome oxidase subunit I gene #eKOI, with a focus on #protists diversity" with Daniel Vaulot @daniel-vaulot.bsky.social from @biovitenskap.bsky.social
Published in Database by @oxfordacademic.bsky.social

20.10.2025 08:27 β€” πŸ‘ 9    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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Towards a trait-based framework for protist ecology and evolution Protists comprise the vast majority of eukaryotic genetic and functional diversity. While they have traditionally been difficult to study due to their…

New publication: "Towards a trait-based framework for #protist ecology and evolution" with Daniel Vaulot @daniel-vaulot.bsky.social from @biovitenskap.bsky.social
Published in Trends in Microbiology @cp-trendsmicrobiol.bsky.social by @cellpress.bsky.social

20.10.2025 08:30 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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The lost art of scientific illustration:
from August Brauer's deep-sea fish

19.10.2025 08:59 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
MetaPR2

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

06.10.2025 15:28 β€” πŸ‘ 13    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

A paper just came out in Science about giant photosystem complex in Gephyrocapsa huxleyi RCC6660 www.science.org/doi/full/10....

15.09.2025 13:09 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
MARINNONET Project video
YouTube video by Juan Luis Gomez Pinchetti MARINNONET Project video

A new video from the MarinnoNET proejct to which RCC is a partner.

www.youtube.com/watch?v=xkD8...

15.09.2025 07:59 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

I would never believe this would happen in a Canadian university☹️

26.08.2025 10:28 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Such statements undermine funding efforts for large scale oceanographic projects. I am sure Trump would lovet it...

08.08.2025 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The following statement is utterly misleading "The cost of this venture pales in comparison to running a scientific research vessel, while yielding far more information..." A bunch of random measurements will never replace a carefully planned cruise with a very large number of metadata.

08.08.2025 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It was so nice and so fulfilling to interact with you both...

30.07.2025 18:04 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Very nice led by Clarence and Adriana...

28.06.2025 14:42 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

ASM is so US centered... mostly American authors, a few European and no one else from South America, Africa or Asia... a real shame.

20.06.2025 18:15 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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We have contributed to a paper led by Kenneth Timmis on the murky world of predatory journals:

enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/...

20.06.2025 11:02 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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We have an A in house with a brillant master thesis defence of Sandra IrΓ©n!!! First master student of the GEEK lab in Norway! 😍 Thanks to @maritbjorbaekmo.bsky.social and Inger Skrede for a delightful & constructive discussion. #protists #proudadvisor πŸ”¬πŸ§¬πŸ‘©β€πŸ’» @biovitenskap.bsky.social

09.06.2025 12:59 β€” πŸ‘ 16    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Congratulations Puri... Is the speech available anywhere ?

05.06.2025 10:10 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Dose of Protist Art: Chatton's chapter 1952 "Classe des Dinoflagelles ou PΓ©ridiniens" in TraitΓ© de Zoologie, Tome 1A. Fig. 1 Euglena intermedia; Fig. 2 Gyrodinium melo; Fig. 3 Amphidinium corpulentum; Fig. 4 Warnowia maculata; Fig. 5 radiolarian Auloceros elegans #protistsonsky

27.05.2025 07:26 β€” πŸ‘ 46    πŸ” 4    πŸ’¬ 1    πŸ“Œ 2

Fantastic work led by Hie Lim, my office neighbour for 4 years in Singapore

16.05.2025 07:58 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0