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Ursula Oggenfuss

@oggenfussursula

πŸ„πŸ§¬ Screening trough fungal genomes to detect πŸ”»transposable elementsπŸ”» and structural variation

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18.10.2023
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Latest posts by Ursula Oggenfuss @oggenfussursula

Length distribution of non-autonomous LTR retrotransposons

Length distribution of non-autonomous LTR retrotransposons

Our lab member Sophie deep-dived into the genome of one of the plants we know best (sugar beet).

She identified over 100 non-autonomous LTR retrotransposon families hiding in the genome. Many elements are rather long (length distribution ⬇️), often without any sequence similarity to coding TEs.

07.03.2026 21:20 πŸ‘ 4 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

#TEworldwide #TEsky

05.03.2026 13:13 πŸ‘ 20 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

#TEsky a short paper from @mbonar.bsky.social , myself and others on our reannotation of TEs in the Octopus vulgaris genome. More work to come using genome ecology to analyze TEs in this species bsky.app/profile/bior...

06.03.2026 14:19 πŸ‘ 12 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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Diversity, ecology, cell biology and evolution of the Asgard archaea - Nature Reviews Microbiology The Asgard archaea have become a cornerstone of archaeal research, particularly for studies aiming to unravel the origin and early evolution of eukaryotes. This Review outlines the current state of th...

Just over ten years after the discovery of the first Asgard archaeal genomes, we revisit the rapid expansion of this remarkable archaeal lineage. From diverse genomes and metabolisms to eukaryotic signature proteins and the first cultured representatives.
www.nature.com/articles/s41...

05.03.2026 10:26 πŸ‘ 47 πŸ” 27 πŸ’¬ 3 πŸ“Œ 1
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Chromosome-scale Genome Assembly of the Most Abundant Ectomycorrhizal Fungus Cenococcum Geophilum Reveals Massive TE Expansion and RIP Defense Mechanism Abstract. Transposable elements (TEs) play crucial roles in genome evolution and ecological adaptation in fungi, yet their dynamics in ectomycorrhizal spec

Dauphin et al. assembled a telomere-to-telomere reference genome for an ectomycorrhizal fungus with a large, repeat-rich genome, showing its genome expansion was driven by a few lineage-specific TE families in recent history.

πŸ”— doi.org/10.1093/gbe/evag017

#genome #evolution #TEsky

18.02.2026 11:21 πŸ‘ 28 πŸ” 14 πŸ’¬ 1 πŸ“Œ 1
Top: Subcellular localization of Cap1-GFP in wild-type background (top, tetO-CAP1-GFP/CAP1), Cap1-GFP with C446* (middle, TeO-CAP1C446*-GFP/CAP1) and wild-type Cap1-RFP (bottom, CAP1C446*/TeO-CAP1-RFP) in CAP1/CAP1C446* background. Scale bar, 5 ΞΌm. Bottom: Schematic of subcellular localization and transcription activation of CAP1 in wild-type (CAP1/CAP1, left) and CAP1/CAP1C446*. Figure generated with BioRender.

Top: Subcellular localization of Cap1-GFP in wild-type background (top, tetO-CAP1-GFP/CAP1), Cap1-GFP with C446* (middle, TeO-CAP1C446*-GFP/CAP1) and wild-type Cap1-RFP (bottom, CAP1C446*/TeO-CAP1-RFP) in CAP1/CAP1C446* background. Scale bar, 5 ΞΌm. Bottom: Schematic of subcellular localization and transcription activation of CAP1 in wild-type (CAP1/CAP1, left) and CAP1/CAP1C446*. Figure generated with BioRender.

#Azole resistance in #Candida albicans poses a growing threat, and is linked to #StressResponse. @annaselmecki.bsky.social &co show that mutations in the oxidative stress TF Cap1 promote #DrugResistance while exposing a lethal vulnerability at high azole doses @plosbiology.org πŸ§ͺ plos.io/4rOrfOz

03.02.2026 17:40 πŸ‘ 15 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

I have a postdoc position in metagenomic exploration available in my group. Candidates with documented experience in phylo & metagenomics and preferably with petabase-scale data mining and GLM workflows are encouraged to apply. Come join us! πŸ§¬πŸ¦ πŸ’»

Please repost

Apply here: www.wur.nl/en/vacancy/p...

05.01.2026 22:45 πŸ‘ 43 πŸ” 50 πŸ’¬ 0 πŸ“Œ 3

Now officially published in Current Biology πŸ₯³πŸ₯³ @mfseidl.bsky.social @binfutrecht.bsky.social

www.cell.com/current-biol...

09.12.2025 17:20 πŸ‘ 63 πŸ” 37 πŸ’¬ 3 πŸ“Œ 0
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Extensive horizontal transfer of transposable elements shapes fungal mobilomes Romeijn et al. reveal that horizontal transposon transfer is widespread in fungi, contributing up to 70% of transposon content in some taxa. The authors uncover thousands of events across diverse line...

Extensive horizontal transfer of transposable elements shapes fungal mobilomes

@currentbiology.bsky.social by @jromeijn.bsky.social et al from @mfseidl.bsky.social

www.cell.com/current-biol...

06.12.2025 09:22 πŸ‘ 69 πŸ” 31 πŸ’¬ 0 πŸ“Œ 1
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Three-dimensional genome architecture connects chromatin structure and function in a major wheat pathogen - BMC Biology Background Genome spatial organization plays a fundamental role in biological function across all domains of life. While the principles of nuclear architecture have been well-characterized in animals ...

Our paper on Zymoseptoria tritici 3D genome organization is officially out! @iglavincheska.bsky.social
link.springer.com/article/10.1...

28.11.2025 12:43 πŸ‘ 34 πŸ” 24 πŸ’¬ 1 πŸ“Œ 0

The best two things in one database: Transposons and Fungi

29.10.2025 17:57 πŸ‘ 14 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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1/ Ever needed to annotate TEs in a fungal genome, but didn't know where to start?

We have released #MycoMobilome, a community-focused non-redundant database of transposable element consensus sequences for the fungal kingdom, constructed from >4,000 fungal genomes!

www.biorxiv.org/content/10.1...

29.10.2025 09:02 πŸ‘ 65 πŸ” 38 πŸ’¬ 1 πŸ“Œ 2

Such wonderful news, this is so well deserved! All the best for this next step!

26.10.2025 21:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Open Positions ERC-funded project on the mechanism of horizontal transfer of entire fungal chromosomes PhD PostDoc

Want to understand how entire fungal chromosomes can be horizontally transferred?
Join us to unravel the mechanism/consequences of horizontal chromosome transfer in a fungal pathogen as part of an ERC-funded project. Postdoc/PhD positions available.
fungal-evolutionary-genetics.de/open-positio...

13.10.2025 09:42 πŸ‘ 25 πŸ” 21 πŸ’¬ 0 πŸ“Œ 0
 Widespread shifts in genome architecture and trophism across fungi. Phylogenetic positions of the shifts identified for genome size. Negative values denote an identified decrease in the genomic trait value while positive values denote an increase in the genomic trait value.

Widespread shifts in genome architecture and trophism across fungi. Phylogenetic positions of the shifts identified for genome size. Negative values denote an identified decrease in the genomic trait value while positive values denote an increase in the genomic trait value.

Fungal #GenomeSize variation is largely driven by TEs & lineage-specific genome defenses. @tbadet.bsky.social & @danielcroll.bsky.social show that presence/absence of RIP mutation systems influences #genome architecture, identifying a likely novel defense mechanism @plosbiology.org πŸ§ͺ plos.io/4hcC5tx

16.10.2025 07:58 πŸ‘ 35 πŸ” 26 πŸ’¬ 0 πŸ“Œ 2
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Eight professors appointed At its meeting of 17 and 18 September 2025 and upon application of JoΓ«l Mesot, President of ETH Zurich, the ETH Board appointed eight professors. The Board also awarded the title of

At its meeting of 17 and 18 September 2025 and upon application of JoΓ«l Mesot, President of ETH Zurich, the ETH Board appointed eight professors. The Board also awarded the title of "Professor of Practice" once.

More info:

18.09.2025 13:51 πŸ‘ 8 πŸ” 2 πŸ’¬ 1 πŸ“Œ 5

The first paper of my PhD is now available as a preprint! πŸŽ‰

Transposable elements (TEs) don't just jump within fungal genomes, they also move extensively between species. In this study, we screened over 1,300 fungal genomes and found a conservative estimate of 5,500+ horizontal transfer events.

20.06.2025 19:39 πŸ‘ 102 πŸ” 45 πŸ’¬ 7 πŸ“Œ 3

Happy Barbara Day, happy #TransposonDay2025 to all that celebrate! Every day we get to work on transposons is such a privilege and joy, and I will never not be amazed by these jumping weirdos -the neutral, the bad and the good. Share some black walnut brownies with your friends today!

16.06.2025 15:48 πŸ‘ 18 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

For those interested in repeat-induced point mutations (RIP) in fungi: Thomas Badet set up an amazing meeting in beautiful NeuchΓ’tel #TEsworldwide #Transposon

28.03.2025 14:10 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

πŸ”₯ The event will bring together molecular biologists, evolutionary geneticists, and bioinformaticians to explore RIP’s role in transposable element control, genome integrity, and fungal adaptation.

Looking forward to seeing you in NeuchΓ’tel! πŸ”οΈ #RIPM2025 #FungalGenomics #EvolutionaryBiology

28.03.2025 09:47 πŸ‘ 1 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
RIPM 2025 Symposium on Repeat-induced Point Mutation research, 30.6 - 1.7, Neuchatel, Switzerland

πŸ”₯ Exciting news! The first Symposium on Repeat-Induced Point mutations is happening June 30 – July 1 at the University of NeuchΓ’telπŸ‡¨πŸ‡­!

πŸ”Ή Want to join? Register here > forms.gle/XWTd4gJAXZSx...

🚨 Limited spots available! So first come, first served!

πŸ”Ή More info > crolllab.github.io/ripm2025/

28.03.2025 09:47 πŸ‘ 8 πŸ” 8 πŸ’¬ 2 πŸ“Œ 2
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@guidopuccetti.bsky.social, Gabriel Scalliet and I are excited to share our latest work.

Resistance in agriculture emerges fast, but we fail to grasp how the myriad mutations in pathogen populations contribute to this.

Please check out and share our latest preprint: www.biorxiv.org/content/10.1...

25.03.2025 22:05 πŸ‘ 29 πŸ” 16 πŸ’¬ 2 πŸ“Œ 0

Barbara McClintock also spent some time working on fungi (Neurospora), so it is more than fair to keep on mentioning her

03.03.2025 19:43 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Honestly I am worried about the impact Trump policies will have on the future of third world PhD students who wants to do it abroad. Americans leaving for Europe will make the process even more harder for people coming from developing and underdeveloped nations.

01.03.2025 07:12 πŸ‘ 8 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

It is similar in Switzerland, and beyond advertised positions, cold calls with a good letter of specific interest for a lab are possible as well. I liked that it is a job, not continuation of school. And as a plus, there are amazing mountain hikes and rock climbing on the weekends!

01.03.2025 18:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Illustration of FuSpok killing a cell which has lost an accessory chromosome. Core chromosome in blue, accessory chromosome in red. Black circle: FuSpok. Green circle: antidote function. Red triangle: toxin function.

Illustration of FuSpok killing a cell which has lost an accessory chromosome. Core chromosome in blue, accessory chromosome in red. Black circle: FuSpok. Green circle: antidote function. Red triangle: toxin function.

Interested in #fungal accessory chromosomes or toxin/antidote genes? Check out our new preprint! We show that the Spok gene family in Fusarium include active toxin/antidote genes. We present a model for how these genes influence the evolution of fungal genomes. www.biorxiv.org/content/10.1...

11.02.2025 09:20 πŸ‘ 29 πŸ” 9 πŸ’¬ 1 πŸ“Œ 0

This goes on the top of my break reading list! It has everything that could be asked for: Starships! Transposable elements! Fungi! And an amazing group of scientists! #TEsky #transposons

23.12.2024 16:11 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Postdoctoral Fellow , University of Guelph, Canada - PhilJobs:JFP Postdoctoral Fellow , University of Guelph, Canada An international database of jobs for philosophers

#TEsky Please circulate! The interdisciplinary research group I'm part of is looking for two postdocs to work on transposons with us here at the U of Guelph in Ontario Canada. philjobs.org/job/show/28330

23.12.2024 14:10 πŸ‘ 19 πŸ” 16 πŸ’¬ 0 πŸ“Œ 0
A researcher on a boardwalk in a DANK hawaiian forest on Molokai.

A researcher on a boardwalk in a DANK hawaiian forest on Molokai.

RP PLS! IΚ»m hiring 3 postdocs at U HawaiΚ»i to study yeast diversity and evolution, marine fungi, and the genomics of microbiomes in experimental foodwebs. All of these projects have existing datasets and LATITUDE to pursue individual interests and "blue sky" ideas www.dropbox.com/scl/fi/5d7u4...

26.11.2024 19:19 πŸ‘ 100 πŸ” 87 πŸ’¬ 1 πŸ“Œ 5

If you like #Transposons πŸ‘Ύ check out this feed and tag your posts with #TEsky! Thanks @tobybarilbio.bsky.social πŸ€— bsky.app/profile/did:...

15.11.2024 06:58 πŸ‘ 12 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0