Anders K. Krabberød
@krabberod.bsky.social
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📥 476
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Bioinformatician at the University of Oslo. Evolutionary biology, protists, progrock bassist.
#protistsonsky
Can anybody help? I am looking for a pdf of "XXV. On the Mycetozoa" by de Bary, A. (1860). Annals and Magazine of Natural History, 5(28), 233–243.
7 days ago
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Anders K. Krabberød
Sundy Maurice
17 days ago
Key scientific events this week for the Oslo Mycology Group
#OMG
. 1- Maria Feiring brilliantly defended her Master thesis on the ecology and diversity of Myxomycete on boreal Forest soil and dead Wood.
@krabberod.bsky.social
@ellathoen.bsky.social
@drhyfe.bsky.social
& Inger Skrede
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29 days ago
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Det er valg! Lurer du på hvordan partiene står i forhold til hverandre? 📊 Her er en hovedkomponentanalyse (PCA) basert på NRKs valgomat. Fargene viser ideologisk blokktilhørighet, og linjene kobler partiene i et minimum spenntre – korteste vei som forbinder alle uten å lage løkker.
#valg2025
#nrk
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5 months ago
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Anders K. Krabberød
Håvard Kauserud
9 months ago
Another version of our DNA metabarcoding course coming to an end. Thanks to the students and teachers
@krabberod.bsky.social
@ramalok.bsky.social
@kbohmann.bsky.social
@daniel-vaulot.bsky.social
@micahdunthorn.bsky.social
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Anders K. Krabberød
Håvard Kauserud
9 months ago
@krabberod.bsky.social
presenting the Ribosomal Operon Database (ROD) at our ongoing DNA metabarcoding course
onlinelibrary.wiley.com/doi/10.1111/...
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Anders K. Krabberød
The PR2 database
9 months ago
- The web interface now provides access to the ROD database that contains full-length eukaryotic ribosomal operons developed by
@krabberod.bsky.social
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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
add a skeleton here at some point
9 months ago
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Anders K. Krabberød
The PR2 database
9 months ago
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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Anders K. Krabberød
William
11 months ago
New paper by our group, mutation accumulation experiment in heat-stressed Arabidopsis!
www.biorxiv.org/content/10.1...
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High short tandem repeat mutation recurrence in heat-stressed Arabidopsis thaliana lines
The rise of the annual average temperature presents a strong selection pressure for many species. Sessile organisms, such as the plant Arabidopsis thaliana (A. thaliana), need to adapt to elevated tem...
https://www.biorxiv.org/content/10.1101/2025.01.24.634728v1
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Anders K. Krabberød
Kjetill S Jakobsen
11 months ago
Check out our latest preprint. Recurrence of STR length mutations in heat stressed Arabidopsis lines (over many generations)
www.biorxiv.org/content/10.1...
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High short tandem repeat mutation recurrence in heat-stressed Arabidopsis thaliana lines
The rise of the annual average temperature presents a strong selection pressure for many species. Sessile organisms, such as the plant Arabidopsis thaliana ( A. thaliana ), need to adapt to elevated t...
https://www.biorxiv.org/content/10.1101/2025.01.24.634728v1
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Anders K. Krabberød
Micah Dunthorn
11 months ago
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...
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ForBio and UiO/IBV course: Bioinformatics for environmental DNA sequencing - ForBio
Read this story on the University of Oslo's website.
https://www.forbio.uio.no/events/courses/2025/Bioinformatics%20for%20environmental%20DNA%20sequencing%20ForBio%20and%20IBV%20
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Anders K. Krabberød
John Burns
about 1 year ago
Let's kick of the New Year like an acantharian with a little
#protistsonsky
fireworks magic. Happy New Year 2025! 🦑
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Anders K. Krabberød
John Dolan
about 1 year ago
Last Sunday of 2024 - Hoping for better year beginning this week!!!
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Anders K. Krabberød
c0nc0rdance
about 1 year ago
"Ants solving a geometric problem and it's amazing." This is a great example of 'emergent phenomenon': - None of the ants understand the problem they're solving. - None of them can see the whole shape. - A series of small decisions or rules add up to something with a new layer of complexity.
add a skeleton here at some point
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Anders K. Krabberød
John Burns
about 1 year ago
One of my favorite radiolarians. I call it a "little hat", but I guess it is probably Eucecryphalus sp. Here are two examples from Bermuda (Atlantic) and Puerto Rico (Caribbean). Exquisite little
#protistsonsky
. I love seeing these forms in different regions of the Oceans.
#protistaday
#marinelife
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Anders K. Krabberød
Micah Dunthorn
about 1 year ago
International Society of Protistologists is funding two symposia at the 16th International Congress of Protistology in Seoul, South Korea. Proposals are due 30 January 2025
#protist
#protistsonsky
protistologists.org/programs/fun...
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Funding - International Society of Protistologists
Student support, seed money, and more. Got a tip for a program that funds protist research? Contact the Vice President. Society funding: The Holz-Conner Travel Fund provides funding for travel […]
https://protistologists.org/programs/funding/
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Anders K. Krabberød
John Burns
about 1 year ago
The rhizarian testate amoeba Euglypha rotunda eats its co-cultured bacteria, but it will also chow down on GFP E. coli. One day I'll use these vids to measure digestion rates.
@thealgaeman.bsky.social
another answer to what they eat!
#protistaday
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
Sometimes you need to take your little shelled amoebas out for a walk. Rhizarian testate amoeba euglypha rotunda
#protistsonsky
#protistaday
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Anders K. Krabberød
Daniel Vaulot
about 1 year ago
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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Anders K. Krabberød
Javier del Campo
about 1 year ago
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)
https://www.biorxiv.org/content/10.1101/2024.12.05.626972v1
eKOI will be integrated into
@pr2-database.bsky.social
🙌
#protistsonsky
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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…
https://www.biorxiv.org/content/10.1101/2024.12.05.626972v1
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Anders K. Krabberød
Iñaki Ruiz-Trillo
about 1 year ago
🧬🦠 Exciting new resource for
#protists
lovers! The eKOI database to expand the power of COI metabarcoding with a focus on
#protistsonsky
& integrated in
@pr2-database.bsky.social
Lead by Rubén with
@beaplab.bsky.social
@fonamental.bsky.social
@daniel-vaulot.bsky.social
Link:
t.co/3lqzRaFw9V
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Anders K. Krabberød
John Burns
about 1 year ago
Palpitomonas: the movie. I like this blurry little video because it shows the cryptistid Palpitomonas with its two absurdly long flagella beating with two different patterns. I imagine it as a pianist playing different parts with each hand.
#protistaday
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
The rhizarian testate amoeba that I shared yesterday makes its shell out of intricate, self-constructed glass scales. Other testate amoebozoans in the same environment make their shells out of debris (left) or food (right). These are interesting examples of convergence!
#protistsonsky
#protistaday
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Anders K. Krabberød
John Burns
about 1 year ago
Today's
#protistaday
is a scan through a multinucleated Acantharian cell from here in the Gulf of Maine. All of the larger Acantharians I've looked at have multiple nuclei like this... need to take a look at/stain the teeny "baby" ones to see how these structures develop!
#marinelife
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
Not a fish or a dragon scale, but a single cell of a
#protistsonsky
. This rhizarian testate amoeba creates perfect tiny glass scales to build it's shell. From a peat bog.
#protistaday
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Anders K. Krabberød
Lukas VF Novak
about 1 year ago
This
#amoeba
eats prey like
#owls
do
www.sciencenews.org/article/amoe...
The vampyrellid amoeba
#Strigomyxa
ruptor gen. et sp. nov. and its remarkable strategy to acquire algal cell contents
onlinelibrary.wiley.com/doi/10.1002/...
#Protists
#Algae
#Amoebae
#ProtistsOnSky
#Microbes
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Anders K. Krabberød
John Dolan
about 1 year ago
Wild things out there! A likely ciliate cyst from the Arctic
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
Inspired by
@evocellbio.bsky.social
, I think I found our gal: Conchoceras caudatum! Drawing from the Challenger expedition in the mid 1870's. Happy to share this again with the additional context. What an incredible cell.
#protistaday
#protistsonsky
#marinelife
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Anders K. Krabberød
John Burns
about 1 year ago
A nasselarian radiolarian with its podoconus (cone-like arrangement of long arms) out and lots of internal movement. Beautiful to see! In the water column, that cone of arms is probably oriented "up" for catching debris/prey and managing motion with the hard skeleton pointed "down"
#protistaday
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Anders K. Krabberød
John Burns
about 1 year ago
Is it a repeat? Sort of, but this is a radiolarian in motion! I wanted to see how dynamic the symbionts are. They mostly stay still over a couple of minutes. With
@micrott.bsky.social
and
@evocellbio.bsky.social
#protistaday
#protistsonsky
#marinelife
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Anders K. Krabberød
Fabien Burki
about 1 year ago
I am looking for an ERC-funded postdoc to work on spatial proteomics of microalgae (red algae and glaucophytes). The ideal candidate will have experience with mass spec and data analysis (R), but above all a keen interest in broad eukaryote evolution and protists
#protistsonsky
(1/2)
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Anders K. Krabberød
John Burns
about 1 year ago
Field imaging setup with
@micrott.bsky.social
. I lug my inverted scope and a variety of little cameras around and am taking up space in her lab to image
#protistsonsky
in collaboration. It is amazing! Pictured are two spumellarian radiolarians
#protistaday
#marinelife
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Anders K. Krabberød
John Burns
about 1 year ago
"Hey wait for meeee!" Said the little radiolarian.
#protistaday
#protistsonsky
#marinelife
. With
@micrott.bsky.social
and
@evocellbio.bsky.social
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Anders K. Krabberød
John Burns
about 1 year ago
Today a radiolarian
#protistaday
from the Caribbean. It is a privilege to have the means, support, and interest to Research the curious cell biology of radiolarians. I have many like this to share and will hopefully have opportunities to dive into their cell bio in the future. 🦑
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
Okay...
#protistaday
. I know this is a phaeodarian, but how does a cell evolve to build a glass mouth, teeth and all, to live inside? This is totally amazing.
#protistsonsky
#marinelife
. With
@evocellbio.bsky.social
@micrott.bsky.social
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Anders K. Krabberød
John Burns
about 1 year ago
Today's
#protistaday
is especially for
@krabberod.bsky.social
. A taxopodida from the Caribbean Sea. With its long, wide oars it looks pretty different from the species I encounter in Maine!
#protistsonsky
#marinelife
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Anders K. Krabberød
John Burns
about 1 year ago
Today's
#protistaday
is not my most beautiful video, but it comes from a special location. This is a pair of ciliates that emerged from rainforest soil from El Yunque national forest 🇵🇷. Soils are amazing bc they look still at first, but a drop of water and a day wait brings motion!
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
And a special double
#protistsonsky
from me today with a second protist from rainforest soil. This testate amoeba has awoken from stasis (dry soil), but hasn't quite emerged from its protective plug. At least that's how I interpret this... in cold weather back in Maine I see something similar!
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Anders K. Krabberød
John Burns
about 1 year ago
Plankton tows in Puerto Rico with
@micrott.bsky.social
are going great! Lots of beautiful microeukaryotes and tiny animals. Today I'll share this Ornithocerus sp. dinoflagellate bc you can see it's little band of bacterial symbionts!
#protistaday
#protistsonsky
#marinelife
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Anders K. Krabberød
Luciana Santoferrara
about 1 year ago
Our new paper:
www.sciencedirect.com/science/arti...
#protistsonsky
Here there is a download link if the previous one doesn't work:
authors.elsevier.com/a/1kC9d3m3nN...
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Phylogenomic workflow for uncultivable microbial eukaryotes using single-cell RNA sequencing − A case study with planktonic ciliates (Ciliophora, Oligotrichea)
Phylogenetic analyses increasingly rely on genomic and transcriptomic data to produce better supported inferences on the evolutionary relationships am…
https://www.sciencedirect.com/science/article/pii/S1055790324002318?dgcid=author
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Anders K. Krabberød
John Burns
about 1 year ago
In hopes of finding lots of Carribean radiolarians today, my
#protistaday
image is a constellation of microscopic stars of the sea, acantharians.
#marinelife
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
A radiolarian colony with some beautiful features: golden symbionts close to the cell bodies, and glass spines--a simple form that is similar to the basic skeleton of many more elaborate single celled species. 🦑
#protistaday
#protistsonsky
#symbiosky
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Anders K. Krabberød
John Burns
about 1 year ago
From a large, local, and unusual, bloom of the dinoflagellate Tripos muelleri in 2023. I trapped some cells in agar microwells to see if I could catch them dividing in a long timelapse. Those wells are 250 microns in diameter: the cells are large!
#protistaday
#protistsonsky
#marinelife
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Anders K. Krabberød
John Burns
about 1 year ago
The tiny heterotrophic cryptophyte palpitomonas with its small cell body, relatively large nucleus (shown with a green nuclear stain) and its strangely extra long pair of flagella.
#protistaday
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
Mitosis in a green alga. The cell grows until it is tetralogy, then divides twice to form 4 new haploid cells. This is one of my study algae, Oophila amblystomatis, a symbiotic green alga.
#protistsonsky
#protistaday
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Anders K. Krabberød
John Burns
about 1 year ago
Keeping with the
#symbiosky
green alga from yesterday, this amazing video shows where each little algal cell is (green dots) inside a salamander embryo. The only vertebrate-alga endosymbiosis. We are still trying to understand the interaction. Light sheet microscopy.
#protistaday
#protistsonsky
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Anders K. Krabberød
John Burns
about 1 year ago
Crawling through the water in slow motion, the tetraflagellate green alga Cymbomonas swims across the frame with its double-breaststroke like action pulling it forward.
#protistaday
#protistsonsky
#marinelife
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Anders K. Krabberød
John Burns
about 1 year ago
A gorgeous planktonic foram from the Atlantic Ocean near Bermuda. With
@blancobercial.bsky.social
. Your
#protistaday
!
#protistsonsky
#marinelife
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Anders K. Krabberød
John Burns
about 1 year ago
A little
#bogmonster
#symbiosky
ciliate captured by a visiting student in an agar microwell from the readily reproducible protocol by
@arcadiascience.bsky.social
. Look at it go!
#protistaday
#protistsonsky
. Protocol links below.
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