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Posts by Siobhán O'Brien

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3rd Microbial Evolution Network Ireland meeting 2026 Microbial Evolution Network Ireland meeting, at Trinity College Dublin

Just over two weeks left to register for MENI 2026! A !!free!! microbial evolution meeting in Ireland with some fantastic keynote speakers @jpjhall.bsky.social @rachelmwheatley.bsky.social @drrebeccajhall.bsky.social @tweethinking.bsky.social #Evolution #microbes

www.eventbrite.com/e/3rd-microb...

1 day ago 6 6 0 0

Of all the plagues my 1 year old has brought home from crèche, hand foot and mouth disease is definitely the cream of the crop.

1 week ago 1 0 0 0
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Universal bacterial clade dynamics dominate under predation despite altered phenotypes and mutation targets Abstract. Recent studies have revealed bacterial genome-wide evolution to be complex and dynamic even in a constant environment, characterized by the emerg

Results from a long term bacteria - ciliate experiment:

academic.oup.com/evolut/advan...

1 week ago 11 7 0 0

New data from the lab, showing how fungicides can drive rapid selection for multidrug resistance In soil bacteria - even under warming. This was probably the most clear cut data I’ve ever seen (collected by @kelbrick.bsky.social), with clear selection on efflux pump regulator PFLU_3160. Enjoy!

2 weeks ago 10 4 0 0

Fungicide drives de novo evolution of multidrug resistance in the plant growth promoting rhizobacterium, Pseudomonas fluorescens www.biorxiv.org/content/10.64898/2026.04...

2 weeks ago 3 1 0 1
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Thanks to @siderophile.bsky.social for an excellent seminar today @uccmicrobiology.bsky.social showcasing how multiple stressors effect the ecology and evolution of soil microbes thanks to @microscrum.bsky.social for organising!

2 weeks ago 6 2 1 0
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3rd Microbial Evolution Network Ireland meeting 2026 Microbial Evolution Network Ireland meeting, at Trinity College Dublin

...and a working URL www.eventbrite.com/e/3rd-microb...

3 weeks ago 0 0 0 0
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Just a few weeks left to register - places are filling up fast!

3 weeks ago 0 2 1 0
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PLEASE SHARE. PhD Opportunity with me, Ben Raymond and Jan Engelstaedter and Andrew Letten at University of Queensland.

Experimentally testing mechanisms of how temperature may change selection and spread of AMR in E. coli. Coupled with some advanced modelling and sequencing.

🧪🦠 #microsky

3 weeks ago 18 28 1 1
LinkedIn This link will take you to a page that’s not on LinkedIn

🔊 Looking for a Research Assistant in Bacterial Evolution to join my lab 🦠
🥼Main duties: Research (AMR + microbiome) + lab assistance.
⏲️ Post duration: 30 months
🗓️ Closing date for applications: 20th April 2026
💰 Salary: ~£35k

Details and how to apply: tinyurl.com/2a3v66y7

Please share!

3 weeks ago 24 47 0 0
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MENI is back! Join us in Dublin this August 2026 for our 3rd Meeting for Microbial Evolution in Ireland. We are delighted to have @rachelmwheatley.bsky.social @drrebeccajhall.bsky.social @jpjhall.bsky.social and @tweethinking.bsky.social join us as keynote speakers this year. miniurl.com/MENI

2 months ago 42 32 2 2
PNAS Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

Why and how to study adaptation in invisible things. A follow up from @asgriffin.bsky.social 's talk at the 2024 @isbe2026.bsky.social meeting
www.pnas.org/doi/10.1073/...

1 month ago 4 3 0 0

Register here: miniurl.com/MENI

2 months ago 0 0 0 0

And, as always, it is FREE!

2 months ago 0 0 1 0
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MENI is back! Join us in Dublin this August 2026 for our 3rd Meeting for Microbial Evolution in Ireland. We are delighted to have @rachelmwheatley.bsky.social @drrebeccajhall.bsky.social @jpjhall.bsky.social and @tweethinking.bsky.social join us as keynote speakers this year. miniurl.com/MENI

2 months ago 42 32 2 2
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@sadhbhnidhubhda.bsky.social 👀

2 months ago 1 0 0 0
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How specific are heritable symbioses?

And what can we learn from swapping obligate symbionts across host species?

We address this in our latest, led by @inespons.bsky.social & in our collaboration w/ @microbiome.bsky.social 🦠🪲 Out today in @natcomms.nature.com!

1/n
www.nature.com/articles/s41...

2 months ago 117 70 3 3
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Happy birthday to one of my favourite haters, Charles Darwin

2 months ago 10351 3075 161 419
Important Harvard Scientists Attack Kin Selection
Important Harvard Scientists Attack Kin Selection YouTube video by jonfwilkins

The Nowak-Epstein emails reminded us about the genius summary of that strange paper, which has better stood the test of time 😂 youtube.com/watch?v=oE6I...

2 months ago 11 4 0 1

Some very juicy emails in these files also - especially like this absolute belter from Bob Trivers

2 months ago 7 0 2 1
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Strange discovery that an email about inclusive fitness was forwarded to Jeffrey Epstein, with the emailer quoting Jerusalem and comparing themself to Einstein. Are you one of the >100 evolutionary biologists now in the Epstein files? www.justice.gov/epstein/file...

2 months ago 28 8 7 1
Fungicide and warming interact to reduce soil ecosystem functioning Soil microbial communities are essential to the functioning of their ecosystems, providing vital services such as plant growth promotion and bioremediation. However, intensively managed environments such as agricultural soils are increasingly challenged with multiple harsh environmental stressors from the compounding effects of climate change and conventional agricultural practices. Understanding how soil communities will respond to environmental stress along multiple axes is key for predicting how environmental change will impact terrestrial soil ecosystems. We combine experimental evolution with community phenotyping, 16s rRNA metabarcoding, fungicide resistance assays and plant experiments, to show that fungicide and warming temperatures together drive a synergistic reduction in soil community respiration rates, metabolic capacity and plant growth promotion (Hordeum vulgare), which would have been missed by looking at stressor effects independently. Dual stressors caused widespread loss of metabolic activity, particularly for carbohydrates and carboxylic acids, highlighting impairment of community function. Fungicide-evolved soil isolates had a 16-fold increase in fungicide resistance, but only in the absence of warming, suggesting that the dual stressor treatment constrained fungicide adaptation. Together, our findings suggest that the number of stressors (rather than the nuances of individual stressors) may be key for predicting soil microbial community responses to environmental change across multiple axes. ### Competing Interest Statement The authors have declared no competing interest. BBSRC, BB/T009446/1 IRC New Foundations and Community Foundation Ireland, NF/2022/39250777 NERC, NE/S00713X/1

Combined anthropogenic stressors (warming and fungicide) synergistically reduce soil microbial ecosystem functioning (respiration, metabolic capacity, plant performance, fungicide resistance). A tour-de-force by @kelbrick.bsky.social!
www.biorxiv.org/content/10.6...

3 months ago 3 2 0 0

🚨4-year fully funded PhD in the lab of @magicmicrobe.bsky.social (& collaborating with me!): How does iron availability shape the ability of pathogens to invade the gut microbiome?
Apply by Jan 26th
Advert: research.reading.ac.uk/foodbiosyste...
How to apply: research.reading.ac.uk/foodbiosyste...

3 months ago 13 18 0 0
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^^^ I am in the same boat right now since Sept and absolutely feel your pain! work efficiency is at an all time high, standards at an all time low. They will have immune systems of steel soon though, right?

3 months ago 0 0 1 0
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Wrapping up 2025 with my favourite Dublin hike, the sea cures all!

3 months ago 3 0 0 0
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@jpjhall.bsky.social starts the #MicroEvo25 strong! Looks like it's gonna be fun🧬🧫🧪

4 months ago 10 3 0 0
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A great start to Session 1: Soil organisms, biodiversity & plant interactions 🪱🌱

🦠 Siobhan O'Brien @siderophile.bsky.social
🍏 Louise Robinson Boyer @niab-uk.bsky.social
🐛 William Hearty @universityofhawaii.bsky.social

#AAB_RegenAg

5 months ago 5 1 2 0
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🏔️ EMPSEB31 is heading to the mountains!
This year we’ll meet in Oberwiesenthal, Germany (8–12 June 2026), a quiet mountain town in the Ore Mountains, right on the Czech border. Think forest trails, open skies, and fresh air.
Join us for a week of science and fun!🌿
#EMPSEB31 #EvoBio #PhD

5 months ago 8 6 0 1
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GitHub - hadley/genzplyr: dplyr but make it bussin fr fr no cap dplyr but make it bussin fr fr no cap. Contribute to hadley/genzplyr development by creating an account on GitHub.

Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp....

genzplyr is dplyr, but bussin fr fr no cap.

5 months ago 460 167 42 54
Our Illuminate Global Challenges Fellowships | Research | Queen's University Belfast

🔊 Applications for the tenure-track illuminate global challenge fellowships at Queen’s are now open!
Comes with 5 years protected research time, a PhD studentship, & 60k start-up. I had one of these before getting my FLF, happy to chat to anyone interested!

www.qub.ac.uk/Research/fel...

5 months ago 12 25 1 1