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Posts by Valerie De Anda

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Having a hard time keeping up with the fast-moving field of origin of eukaryotes/Asgards archaea? Our new perspective article can help, we review the status of research over the last decade and where it's going.

The archaeal roots of eukaryotic life

www.pnas.org/doi/10.1073/...

1 month ago 160 76 7 4
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Prediction of eukaryotic cellular complexity in Asgard archaea using structural modelling - Nature Microbiology A structural catalogue of the Asgard archaeal pangenome reveals hundreds of eukaryotic-like proteins that suggest a higher degree of cellular complexity in the archaeal ancestor of eukaryotes.

🧵 1/10 New paper out in @natmicrobiol.nature.com from my postdoc at @mib-wur.bsky.social! 🎉

How eukaryote-like was the archaeal ancestor of eukaryotes? Sequence searches alone can't tell us — so we used protein structure prediction to look deeper. 🧬
www.nature.com/articles/s41...

1 month ago 66 36 3 3
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The Dark Frontier by Jeffrey Marlow: 9780593230183 | PenguinRandomHouse.com: Books An awe-inspiring investigation into the hidden world of the deep sea—the most mysterious, unforgiving environment on Earth—whose secrets can radically revise our understanding of life itself...

Hey guess what - I wrote a book, and it's coming out soon!

The Dark Frontier is about the wonders of the deep sea...and the threats they face. Check it out, and if you're so moved, you can preorder from your favorite purveyor of fine literature 📚❤️

www.penguinrandomhouse.com/books/652987...

2 months ago 19 6 2 0

We are happy to share our newest preprint on a novel strain of Ca. Lokiarchaeum ossiferum, that contains an active provirus, capable of excision and independent replication! We propose a novel virus family: Fylgjaviridae.

www.biorxiv.org/content/10.6...

2 months ago 36 18 1 1
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Finally out in @natmicrobiol.nature.com: Prediction of eukaryotic cellular complexity in Asgard archaea using structural modelling. Great work by @stephkoe.bsky.social @kassipan.bsky.social @jvhooff.bsky.social

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

1 month ago 72 28 1 0
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Oxygen metabolism in descendants of the archaeal-eukaryotic ancestor - Nature Sequencing of marine sediments finds 136 newly identified Heimdallarchaeia and several novel lineages, and indicates that Heimdallarchaeia evolved distinct metabolic capabilities from other Asgar...

#NatMicroPicks

Aerobic archaeal-eukaryotic ancestor? 🦠🫁

The ancestor of eukaryotes may have combined hydrogen metabolism with aerobic respiration, shaping early cellular complexity.

#MicroSky

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

2 months ago 34 18 0 0
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New paper from my team detailing a greatly expanded genomic database of Asgard archaea revealing of high energy metabolism those related to eukaryotes! Led by @katyappler.bsky.social lots of help from @jameslingford.bsky.social @valdeanda.bsky.social @kassipan.bsky.social doi.org/10.1038/s415...

2 months ago 151 61 10 3
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Emil Ruff Leads Team to Explore Dark Oxygen Through NASA Collaborative Award | Marine Biological Laboratory For more than a century, textbooks asserted that molecular oxygen (O2) on Earth is produced almost entirely by photosynthesis, through plants and microbes. But discoveries over the past decade have ov...

Meet "OxyMoRon" our 5-year NASA ICAR program to study dark oxygen production in Earth's hidden ecosystems. We have multiple positions and are happy about collabs.

Co-PIs:@valdeanda.bsky.social @microbiaki.bsky.social @valiergaly.bsky.social Ranjani Murali, Scott Wankel

www.mbl.edu/news/emil-ru...

2 months ago 23 10 2 0
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Oxygen metabolism in descendants of the archaeal-eukaryotic ancestor - Nature Sequencing of marine sediments finds 136 newly identified Heimdallarchaeia and several novel lineages, and indicates that Heimdallarchaeia evolved distinct metabolic capabilities from other Asgardarchaeota, in conditions that may have given rise to early eukaryotes.

Nature research paper: Oxygen metabolism in descendants of the archaeal-eukaryotic ancestor

go.nature.com/4rSfRRw

1 month ago 27 14 0 0
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Evolution and diversity of oxidoreductases involved in redox balance and energy conservation - Nature Ecology & Evolution HORBEC are protein complexes involved in the regulation of redox balance and energy conservation. The authors develop a bioinformatic tool for HORBEC annotation in bacterial and archaeal genomes and r...

Passioned by #bioenergetics? Do not miss our new article on the evolutionary history of oxidoreductases with G. Borrel and @sgribaldo.bsky.social @archaeal.bsky.social @valdeanda.bsky.social @pasteur.fr @cnrs.fr @cnrsbiologie.bsky.social @natecoevo.nature.com (www.nature.com/articles/s41...).

2 months ago 55 33 2 3
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Thursday! Episode 92 of #MattersMicrobial! Dr. Valerie DeAnda Torres of the University of Florida joined the #QualityQuorum to discuss the work of her research group in studying evolution of metabolic pathways in the deep ocean. Please spread the #GoodMicrobialWord!

youtu.be/nNcXGmh9CZo?...

10 months ago 22 9 1 1

A large part of what we chatted about comes from the awesome work of @cumsille.bsky.social. Check it out!

1 year ago 7 2 0 0

Reminder that you can apply for the GRC AEM even if you working under a travel freeze (like I am). Applying doesn't mean you have to pay anything, you are just putting your hat in and show you are interested. The more people apply, the easier it is for us to defend funds! www.grc.org/applied-and-...

1 year ago 6 4 0 0
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@quantaofgeorge.bsky.social was on @markowenmartin.bsky.social's Matters Microbial podcast to talk about his PhD work on multicellular magnetotactic bacteria in my lab. Youtube: www.youtube.com/watch?v=XJom... Podcast of your choice: www.microbe.tv/mm/mm-076/

1 year ago 4 3 1 0
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Two decades of bacterial ecology and evolution in a freshwater lake Nature Microbiology - A 471-metagenome time series from Lake Mendota in Wisconsin, USA, reveals seasonal and decadal shifts in bacterial functional and ecological dynamics, especially in response...

After 24 years of work, I’m thrilled to announce the TYMEFLIES dataset, which comprises metagenomes from Lake Mendota (Madison, WI), collected roughly every 10 days (471 samples) for 20 years! @quendi.bsky.social @robinrohwer.bsky.social

rdcu.be/d5put

A thread…

1 year ago 245 102 3 3

Congrats @emilruff.bsky.social and all coauthors! 🎉👏

1 year ago 2 0 0 0
Different forms of mentoring 
Image Source: https://frntofficesport.com/wp-content/uploads/2018/02/mentoring-dr.-sara-taylor-1024x784.jpg

Different forms of mentoring Image Source: https://frntofficesport.com/wp-content/uploads/2018/02/mentoring-dr.-sara-taylor-1024x784.jpg

Faculty mentoring in academic institutions, a thread.
As I advance in my academic career (read: as I keep getting more gray hair), I've come to appreciate, even more than before, the profound responsibility we (senior-ish faculty) have to support and nurture emerging talent, not diminish it.

1 year ago 286 79 4 13
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2025 Research Expeditions on R/V Falkor (too) 2025 Research Expeditions on R/V Falkor (too)

Thrilled to be leading a Falkor expedition next year.

schmidtocean.org/cruises/schm...

1 year ago 12 1 2 0
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Our latest Asgard preprint is out! Closed genomes of Freyarchaeia & the previously uncharacterized Atabeyarchaeia indicate key roles in wetland soil carbon cycling. Led by @luisvalentin.bsky.social isvalentin.bsky.social
@katyappler.bsky.social @archaeal.bsky.social
www.biorxiv.org/content/10.1...

2 years ago 20 12 0 1

Closed genomes from new Asgard archaea lineages using PacBio metagenomes!

The sampling in this one is this is quite literally a backyard in northern California. Asgard archaea are not just found in extreme environments, but pretty much all around us!

2 years ago 35 20 2 0
Venn diagrams with a Halloween theme.

Venn diagrams with a Halloween theme.

Anyone teaching their students boolean searches today?
Happy Halloween! 🦇 🎃 👻
🧪

2 years ago 337 107 5 2
cartoon depicting interactions between viruses, bacteria and their commons host

cartoon depicting interactions between viruses, bacteria and their commons host

Two open positions! Looking for a #bioinformatics #postdoc and a #laboratory #technician. Interested in joining the team? Check out www.microbial-ecology.net/open-positions

2 years ago 12 14 0 2

Reposting to #MicroSky 🦠🧫 & #evolbiol

2 years ago 1 2 0 0
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One high quality genome and two transcriptome datasets for new species of Mantamonas, a deep-branchi... Scientific Data - One high quality genome and two transcriptome datasets for new species of Mantamonas, a deep-branching eukaryote clade

First paper out of Jazmin Blaz's PhD! In this collaborative effort, we're presenting two new sp. of Mantamonas and the first complete genome for a representative of CRuMs. Their phylogenetic position makes them key to understanding the early evolution of eukaryotes. www.nature.com/articles/s41...

2 years ago 22 9 1 1
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Postdoc (m/f/d) | Microbiome Evolution We offer a postdoctoral position in Microbiome Evolution

Felix Key at the Max Planck Institute for Infection Biology is looking for a postdoc in "Microbiome Evolution", which sounds quite interesting. I don't think he's on this platform yet

www.mpiib-berlin.mpg.de/2153816/job_...

2 years ago 11 13 0 1
Asgard archaea defense systems and their roles in the origin of immunity in eukaryotes bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution

Asgard archaea defense systems and their roles in the origin of immunity in eukaryotes www.biorxiv.org/content/10.1... #jcampubs

2 years ago 1 2 0 0
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Excited for my first Blue Skye post! 🚀
Our latest paper from the Baker lab is out today in mBio!
Interested in ocean hydrocarbon degradation & SIP-metagenomics?
Check this out!
👇
journals.asm.org/doi/10.1128/...
@archaeal.bsky.social

2 years ago 26 10 1 0