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Hanna Johannesson

@hannajohannesson.bsky.social

Professor Bergianus at the Royal Swedish Academy of Sciences/Stockholm University. Interested in fungal and evolutionary biology.

356 Followers  |  266 Following  |  9 Posts  |  Joined: 02.12.2024  |  1.7413

Latest posts by hannajohannesson.bsky.social on Bluesky

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Nya upptΓ€ckter om svamparnas evolution - Kungl. Vetenskapsakademien Nya upptΓ€ckter om svamparnas evolution

Looking forward to give this open, and public, lecture tonight! Will be possible to see online later if you miss it today.
www.kva.se/evenemang/ny...

10.09.2025 05:46 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Highly recommended! Hanna’s team is doing ground-breaking research, Stockholm is a lovely city, and a Swedish PhD position is very attractive - an actual job with paid holidays, sick leave, parental leave and pension rights.

08.09.2025 05:12 β€” πŸ‘ 29    πŸ” 14    πŸ’¬ 2    πŸ“Œ 0
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Lediga jobb vid Stockholms universitet Jobb

We have several open positions in my group, funded from the ERC Grant on the Early Sequestered Germline of Fungi. We search broadly for applicants at both PhD and master-level, with a dedicated interest in fungal evolutionary biology. Please forward and RT!
Find the positions here: su.varbi.com

07.09.2025 13:13 β€” πŸ‘ 51    πŸ” 52    πŸ’¬ 0    πŸ“Œ 1
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Early germline sequestration in a basidiomycete fungus In sexual organisms, inheritance of new mutations is highly dependent on the timing of germline definition. Here, we used the fairy ring–forming fungus Marasmius oreades to challenge the general assum...

Mind blown by @hannajohannesson.bsky.social talk on fungal β€˜fairy rings’ and their incredible early germline sequestration doi.org/10.1126/scie... #ESEB2025

21.08.2025 13:31 β€” πŸ‘ 21    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0
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Early germline sequestration in a basidiomycete fungus In sexual organisms, inheritance of new mutations is highly dependent on the timing of germline definition. Here, we used the fairy ring–forming fungus Marasmius oreades to challenge the general assum...

It started as a master thesis project by Markus Hiltunen, and ended up in this publication in Science. What a fun project to work on! Thanks Markus - and all other coauthors, too, for a great team work! www.science.org/doi/10.1126/...

14.08.2025 19:54 β€” πŸ‘ 50    πŸ” 25    πŸ’¬ 2    πŸ“Œ 2

Thanks, Daniel! It is a fantastic opportunity to scale up the work. I will soon post adds for people joining the project, so mycologists - stay tuned!

14.08.2025 19:49 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Great to have you in joining the group, Gulya! πŸ˜€

14.08.2025 19:46 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Isolation and characterization of edible mushroom-forming fungi> from Swedish nature Fungi are a highly diverse group of organisms, of which only a small subset has been taken into cultivation for application in biotechnology and food industry. Accordingly, outside of a few model...

Our lab went out in the forest and helped our dedicated master student Mario to gather edible mushrooms for cultivation. Here is the end product! In particular proud of Hericium coralloides who fruited nicely for Mario in the lab! πŸ˜€ imafungus.pensoft.net/article/1422...

17.02.2025 16:40 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Evolution of a bipolar sexual compatibility system in Marasmius Sexual compatibility in the Basidiomycota is governed by genetic identity at one or two loci, resulting in compatibility systems called bipolar and tetrapolar. The loci are known as HD and P/R, enc...

Our paper on the evolution of a bipolar sexual compatibility system in Marasmius is out! We show that Marasmius obeys to the typical Agaricomycete way to evolve bipolarity from tetrapolarity - by loss of mating compatibility function of the P/R locus. doi.org/10.1080/0027...

12.12.2024 21:06 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Soilwatching Dive into the wonders of the world below your feet with the researchers of the SoilChip group at @LundUniversity! We want to share unique footage from our cyborg soils, transparent labyrinths that me...

Happy #worldsoilday !! Have you ever looked INTO soil ? If no, join us at Soilwatching: Windows to the #soil let us peek at all its inhabitants. If you know the channel already - stay tuned, there will soon be two new episodes:) www.youtube.com/@Soilwatching

05.12.2024 22:49 β€” πŸ‘ 45    πŸ” 18    πŸ’¬ 0    πŸ“Œ 1
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JOB ALERT!
A fully funded PhD opportunity awaits at Uppsala University, Sweden, focusing on the evolution and biology of lichen photobionts.

The position will involved field work, molecular lab work and data analyses (from meta-omics to pop genetics).
#PhDposition

www.uu.se/en/about-uu/...

15.11.2024 14:47 β€” πŸ‘ 45    πŸ” 45    πŸ’¬ 0    πŸ“Œ 3

Thanks for the really great talk, Rike!

02.12.2024 13:05 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Got to give a talk on a BIG screen today! 🀩 Thanks @loreament.bsky.social for the photo and the #Mycology Nordics conference for hosting!πŸ§ͺπŸ„πŸ„β€πŸŸ«

28.11.2024 16:28 β€” πŸ‘ 20    πŸ” 1    πŸ’¬ 3    πŸ“Œ 1

Thanks @edithhammer.bsky.social‬ and everyone else who attended and made the meeting so awesome! Look forward to the next one πŸ˜€

02.12.2024 13:02 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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