Louis-Marie Bobay's Avatar

Louis-Marie Bobay

@lbobay.bsky.social

Associate Professor. NC State. Microbial Genomics, Evolution, Bioinformatics.

230 Followers  |  229 Following  |  10 Posts  |  Joined: 21.11.2024  |  1.9448

Latest posts by lbobay.bsky.social on Bluesky

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My book is available for pre-order!
www.routledge.com/Quantitative...

Or you can request an inspection copy here:
www.routledge.com/textbooks/ev...

29.01.2026 13:09 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Postdoctoral position - Synthetic Biology / Bacterial Immunity - Research The Bikard lab at Institut Pasteur in Paris is seeking to hire postdoctoral researchers. We are investigating bacteria / bacteriophages interactions, and the genetic innovation that happens at this in...

🚨 Hiring Alert! 🚨My lab at Institut Pasteur is recruiting several Postdocs! We have exciting open projects in: 🦠 Synthetic Biology andπŸ›‘οΈ Bacterial Immunity. Come do great science with us in the middle of Paris! πŸ‡«πŸ‡·πŸ₯ research.pasteur.fr/en/job/postd...

28.01.2026 11:19 β€” πŸ‘ 59    πŸ” 60    πŸ’¬ 0    πŸ“Œ 0

My pleasure! Those were busy times for you indeed! Congrats on all these accomplishments.

27.01.2026 16:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Congrats to @carolinamicro.bsky.social for leading this study! We looked at genome rearrangements over short evolutionary timescales. Among other things, we found that genomes are highly syntenic within most species. However, several bacteria experienced sudden and massive genome rearrangements.

27.01.2026 15:09 β€” πŸ‘ 14    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
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Baby-to-baby strain transmission shapes the developing gut microbiome - Nature A metagenomic survey of babies attending the first year of nursery detected extensive baby-to-baby microbial strain transmission, pointing to social interactions in infancy as crucial drivers of infan...

πŸ₯ NEW

Our study on infant gut microbiome and #straintransmission is now published in @nature.com:

doi.org/10.1038/s415...

1/10

21.01.2026 18:24 β€” πŸ‘ 58    πŸ” 34    πŸ’¬ 2    πŸ“Œ 2
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Characterizing a novel Symbiopectobacterium purcellii MEX strain at the early stages of establishing a symbiotic relationship Abstract. Insects ally with microbial symbionts for a diversity of services. The range of these interactions is wide, spanning from beneficial to pathogeni

I’m excited to share a new paper by a super talented graduate-student-now-postdoc. Grateful to work with old and new collaborators!

Characterizing a novel Symbiopectobacterium MEX strain at the early stages of establishing a symbiotic relationship url: academic.oup.com/gbe/article/...

09.01.2026 21:36 β€” πŸ‘ 10    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
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Deadline is approaching (Feb 9) to apply for a PI position at Institut Pasteur. Come join us and contribute to an amazing scientific environment!!!

19.01.2026 16:55 β€” πŸ‘ 17    πŸ” 30    πŸ’¬ 1    πŸ“Œ 0

a quick reminder!

18.01.2026 13:25 β€” πŸ‘ 15    πŸ” 11    πŸ’¬ 0    πŸ“Œ 0

Une opportunitΓ© unique de former des Γ©tudiants talentueux Γ  la biologie des bactΓ©ries Γ  l'ENS Lyon et mener des recherches sur les phages, l'immunitΓ© bactΓ©rienne, le transfert gΓ©nΓ©tique horizontal (HGT) et/ou les Γ©lΓ©ments gΓ©nΓ©tiques mobiles au sein du dΓ©partement de bactΓ©riologie du CIRI.

13.01.2026 14:01 β€” πŸ‘ 8    πŸ” 14    πŸ’¬ 0    πŸ“Œ 0
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Creating bacterial genomic diversity through large-scale reconfigurations reveals phenotype robustness to organizational genome change
doi.org/10.64898/202...

08.01.2026 07:36 β€” πŸ‘ 14    πŸ” 12    πŸ’¬ 1    πŸ“Œ 0

The distinction between virulent & temperate phages gets fuzzier if one can find so many virulent phages in the sequences of bacterial genomes coming from standard lab "pure" cultures. Check Peter's thread on our work and the N&V by Carson & Hynes: doi.org/10.1038/s415...
#phagesky #microsky

05.01.2026 16:41 β€” πŸ‘ 41    πŸ” 22    πŸ’¬ 0    πŸ“Œ 0

Congratulations! Amazing work!

18.12.2025 15:42 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

If you are interested in this work and are looking for a postdoc position, please get in touch -- we are actively looking for someone to join our group at UCLA!

17.12.2025 18:53 β€” πŸ‘ 14    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0
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Recombination between strains fuels pervasive adaptive evolution among human gut commensal bacteria, and strongly implicate host diet and lifestyle as critical selection pressures @nature.com @nanditagarud.bsky.social
www.nature.com/articles/s41...

17.12.2025 17:31 β€” πŸ‘ 19    πŸ” 10    πŸ’¬ 2    πŸ“Œ 0

Looking for a postdoc in 2026? The Ewel fellowship at UF provides $70K salary and $20K research support for 2 yrs. I'm happy to sponsor a postdoc interested in microbial ecology of Florida coastal ecosystems (seagrass, coral, mangroves, springs). 🦠 Due 1/11/26

postdoc.aa.ufl.edu/current-post...

13.12.2025 12:16 β€” πŸ‘ 12    πŸ” 20    πŸ’¬ 1    πŸ“Œ 2
Research and Lab Specialist The Kleiner Lab at North Carolina State University (www.kleinerlab.org) is seeking a Research Specialist to support ongoing research on complex microbial communities, microbial symbioses, and metaprot...

We are recruiting a Lab Manager/Research Specialist
jobs.ncsu.edu/postings/225...
Please re-post, thank you

12.12.2025 19:12 β€” πŸ‘ 5    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
Screenshot from GRC portal confirming microbial population biology meeting June 27, 2027 in Andover, New Hampshire.

Screenshot from GRC portal confirming microbial population biology meeting June 27, 2027 in Andover, New Hampshire.

It’s officially happening folks! The Microbial Population Biology Gordon Research Conference is back in Andover, New Hampshire starting June 27th of 2027!
See you there!!

@wcratcliff.bsky.social @ksbakes.bsky.social @surtlab.bsky.social

#microsky #mevosky

10.12.2025 14:35 β€” πŸ‘ 82    πŸ” 44    πŸ’¬ 3    πŸ“Œ 5

Are you a recombination researcher heading to #SMBE2026? Submit your abstract to our Symposium, organised by Marie Raynaud, Laurent Duret, and myself. We're excited to have Aurora Ruiz-Herrera from UAB Barcelona as our invited speaker.
πŸ§¬πŸ¦„πŸ¦ πŸŒΏπŸπŸŸπŸ„πŸͺ±
@aruizherrera.bsky.social @duret-lbbe.bsky.social

09.12.2025 14:54 β€” πŸ‘ 17    πŸ” 13    πŸ’¬ 0    πŸ“Œ 1
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Creation of new junior research groups at the Institut Pasteur - Call for applications 2026 - Research The Institut Pasteur is launching an international call to recruit new junior research group leaders leveraging cutting-edge transdisciplinary approaches to exploring infectious diseases, host-microbe...

πŸ”¬ Call to create junior research groups at the Institut Pasteur

Focus: Infectious diseases, host-microbe interactions, vaccines
Special interest: AI methodologies

πŸ“… Deadline: Feb 9, 2026
πŸ‘₯ 2-12 years post-PhD

Apply now πŸ“ research.pasteur.fr/en/call/crea...

#JobOpportunity #Research

08.12.2025 08:53 β€” πŸ‘ 99    πŸ” 138    πŸ’¬ 1    πŸ“Œ 9
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Mid-career Group Leader position in AI in genomics at Institut Pasteur, Paris - Research Institut Pasteur and the CNRS are launching a call for a mid-career group leader position in AI in genomics. We are looking for an experienced researcher (typically with > 8 years of research experien...

Opening of a Group Leader position in AI in genomics at Institut Pasteur @pasteur.fr , Paris research.pasteur.fr/en/call/mid-...

06.12.2025 09:48 β€” πŸ‘ 9    πŸ” 14    πŸ’¬ 0    πŸ“Œ 0
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Natural and artificial variations of the standard genetic code www.cell.com/current-biol...

02.12.2025 08:01 β€” πŸ‘ 8    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
Pangenomic visualization of the genomic organization of all 12 Streptomyces isolates representing each of the four AC groups. Hierarchical clustering is based on orthogroup presence/absence using Euclidean distance and Ward’s linkage method. Colored rings show orthogroup presence/absence per isolate, the outer ring shows the number of contributing genomes, and the second outer ring shows the number of genes present in each orthogroup. The metadata table shows 1) experimental phenotype data (orange) of total siderophore production (SP, halo size on CAS-LB media), growth under osmotic stress (OST, 1.0M sorbitol), and the relative production of four individual siderophores in response to media supplemented with drought- vs. well-watered root tissue (EF1 and EF2, ferrioxamine EF; H, O-methyl desferrioxamine H, D4, derrioxamine D4), and 2) genome analysis data (dark blue), showing the number of gene copies that match with specific COG function search terms related to iron acquisition (iron and Sid, siderophores), carbon resource utilization (G-3-P, glycerol-3-phosphate), and osmotic stress response (ProP, FabG, OmpR, Kdp, Trk). Scale values represent Z-scores, where darker blue indicates more gene copies, and darker orange indicates more siderophore production, more growth under osmotic stress, or a larger halo.

Pangenomic visualization of the genomic organization of all 12 Streptomyces isolates representing each of the four AC groups. Hierarchical clustering is based on orthogroup presence/absence using Euclidean distance and Ward’s linkage method. Colored rings show orthogroup presence/absence per isolate, the outer ring shows the number of contributing genomes, and the second outer ring shows the number of genes present in each orthogroup. The metadata table shows 1) experimental phenotype data (orange) of total siderophore production (SP, halo size on CAS-LB media), growth under osmotic stress (OST, 1.0M sorbitol), and the relative production of four individual siderophores in response to media supplemented with drought- vs. well-watered root tissue (EF1 and EF2, ferrioxamine EF; H, O-methyl desferrioxamine H, D4, derrioxamine D4), and 2) genome analysis data (dark blue), showing the number of gene copies that match with specific COG function search terms related to iron acquisition (iron and Sid, siderophores), carbon resource utilization (G-3-P, glycerol-3-phosphate), and osmotic stress response (ProP, FabG, OmpR, Kdp, Trk). Scale values represent Z-scores, where darker blue indicates more gene copies, and darker orange indicates more siderophore production, more growth under osmotic stress, or a larger halo.

How do root #microbes respond to drought? This study finds that #Streptomyces responses are strain-specific & functionally diverse, with traits & #plant effects varying independently of phylogeny, stressing the need to resolve functional traits at the strain level @plosbiology.org πŸ§ͺ plos.io/4owtjIT

01.12.2025 09:20 β€” πŸ‘ 18    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0
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metaTraits: a large-scale integration of microbial phenotypic trait information Abstract. Microbes differ greatly in their organismal structure, physiology, and environmental adaptation, yet information about these phenotypic traits is

metaTraits: a large-scale integration of microbial phenotypic trait information

academic.oup.com/nar/advance-...

30.11.2025 04:47 β€” πŸ‘ 19    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
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Evaluating the early diversification of Yersinia pestis and its phylogeographic expansion over 96 years of evolution in Madagascar - Communications Biology A comprehensive phylogenetic analysis of Yersinia pestis, the causative agent of plague, provides insight into the diversity and evolution of this pathogen in Madagascar. This study provides valuable ...

Another addition to the 2nd Plague Pandemic bibliography. Why, when this relates to the 3rd Pandemic, instead of the 2nd? B/c the science about plague we've acquired from the unfortunate experience of Madagascar informs everything we can do in #medhist. www.nature.com/articles/s42...

29.11.2025 21:13 β€” πŸ‘ 12    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
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πŸ§¬πŸ›‘οΈHow are new immune mechanisms created?

We show how Lamassu antiphage system, originated from a DNA-repair complex and evolved into a compact and modular immune machine, wt Dinshaw Patel lab in @pnas.org.
πŸ‘ @matthieu-haudiquet.bsky.social, Arpita Chakravarti & all authors!

doi.org/10.1073/pnas...

27.11.2025 09:35 β€” πŸ‘ 104    πŸ” 47    πŸ’¬ 1    πŸ“Œ 2
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Long-read metagenomics reveals phage dynamics in the human gut microbiome - Nature Complex prophage integration dynamics, including low-level induction, cross-family host range and transposase-mediated mobilization, challenge existing paradigms and deepen our understanding of phage–...

Long read Metagenomics, #phage and #prophage in the gut by Ami Bhatt's group. Beautiful data showing changes in phages over two years

#phagesky

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

26.11.2025 21:55 β€” πŸ‘ 70    πŸ” 35    πŸ’¬ 0    πŸ“Œ 1

Some fantastic sessions being planned for ASM Microbe 2026, including "Long-term Dynamics of Environmental Microbiomes", and "Eco-evolutionary Dynamics of Phages and Their Roles in Horizontal Gene Transfer". Get your abstract(s) ready, and join us June 4–7, 2026 in D.C. ! asm.org/events/asm-m...

24.11.2025 20:13 β€” πŸ‘ 19    πŸ” 8    πŸ’¬ 0    πŸ“Œ 2
NOT-OD-26-012: Updated Guidance on Reopening of NIH Extramural Activities Following the October 1, 2025 - Lapse in Appropriations NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Updated Guidance on Reopening of NIH Extramural Activities Following the October 1, 2025 - Lapse in Appropriations NOT-...

Due to the shutdown, NIH cancelled >370 study sections, impacting >24,000 applications

Rescheduled meetings will only discuss 30-35% of applications, have simplified summary statements (no narrative paragraph), and a new category - "competitive but not discussed"

grants.nih.gov/grants/guide...

24.11.2025 18:55 β€” πŸ‘ 3    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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Bacterial immune systems as causes and consequences of microbiome structure Bacterial immune systems have evolved in response to diverse molecular "parasites", yet their ecological roles remain poorly understood. This Essay explores how interactions between mobile genetic…

The ecological roles of bacterial #immune systems are poorly understood. Rafael Custodio @ellinoralseth.bsky.social @brockhurstlab.bsky.social @brownlab.bsky.social & Edze Westra explore how mobile genetic elements and bacterial defenses shape #microbiome structure and function πŸ§ͺ

24.11.2025 17:30 β€” πŸ‘ 23    πŸ” 9    πŸ’¬ 1    πŸ“Œ 1
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Review: Inference and applications of ancestral recombination graphs https://www.nature.com/articles/s41576-024-00772-4 (read free: https://rdcu.be/dVyQH) 🧬πŸ–₯️

30.09.2024 11:18 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0

@lbobay is following 20 prominent accounts