Filipa Trigo da Roza
@filipatr.bsky.social
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Post-doc at the PBE lab | Interested in plasmids, integrons, evolution, and many other things 😅
Back home from the
#MicroEvo25
conference in the heartwarming city of Liverpool 🥰 We had fun, made new friends, and discussed science and future projects. Thank you
@microbiologysociety.org
for these amazing days! Can’t wait for the next edition!
about 1 month ago
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reposted by
Filipa Trigo da Roza
Alicia Calvo-Villamañán
about 1 month ago
Very happy to be at
#microevo25
in Liverpool! Here’s to two days of micro-awesomeness and Beatles’ references!
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reposted by
Filipa Trigo da Roza
Alicia Calvo-Villamañán
5 months ago
This work is finally published! 🥳🧬 Plasmids are associated with very variable fitness costs in their different bacterial hosts. But, what is the contribution of each of the plasmid-genes in these host-specific effects? Study led by
@jorgesastred.bsky.social
,
@sanmillan.bsky.social
and myself! 1/14
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Dissecting pOXA-48 fitness effects in clinical Enterobacterales using plasmid-wide CRISPRi screens
Nature Communications - This study investigates the effects of the carbapenem resistance plasmid pOXA-48 in clinical enterobacteria. Using CRISPRi screens, the authors revealed that the...
https://rdcu.be/eBhe3
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reposted by
Filipa Trigo da Roza
Jorge Sastre Domínguez
5 months ago
New paper out! 🔈🔈📣📣 Plasmids promote antimicrobial resistance through Insertion Sequence-mediated gene inactivation. Combining experimental and computational approaches, we unveil how two of the most prevalent bacterial MGE accelerate the evolution of AMR. 🧵👇🏻
www.biorxiv.org/content/10.1...
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Plasmids promote antimicrobial resistance through Insertion Sequence-mediated gene inactivation
Antimicrobial Resistance (AMR) is a major threat to public health. Plasmids are mobile genetic elements that can rapidly spread across bacterial populations, promoting the dissemination of AMR genes i...
https://www.biorxiv.org/content/10.1101/2025.08.12.669853v1
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reposted by
Filipa Trigo da Roza
Carlos Serna
6 months ago
Our paper “Global dissemination of npmA mediated pan‑aminoglycoside resistance via a mobile element in Gram‑positive bacteria” is now in
@natcomms.nature.com
. Part of my freshly defended PhD, so doubly happy! 😄🎉 🧵 (1/14)
www.doi.org/10.1038/s414...
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Global dissemination of npmA mediated pan-aminoglycoside resistance via a mobile genetic element in Gram-positive bacteria - Nature Communications
The authors investigate the distribution of the aminoglycoside resistance gene npmA in Gram-positive bacteria via a mobile genetic element, highlighting its global presence and cross-species transfer ...
https://www.doi.org/10.1038/s41467-025-61152-y
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reposted by
Filipa Trigo da Roza
Paula Ramiro-Martínez
6 months ago
Curious about plasmid biology? Our latest paper is out now in Nature Communications! 🚨
doi.org/10.1038/s414...
We analyzed thousands of diverse bacterial plasmids to shed light for the first time on a key aspect of plasmid biology: plasmid copy number. 1/7 👇
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Universal rules govern plasmid copy number - Nature Communications
Plasmids exhibit a broad range of sizes and copies per cell, and these two parameters appear to be negatively correlated. Here, Ramiro-Martínez et al. analyse the copy number of thousands of diverse b...
https://doi.org/10.1038/s41467-025-61202-5
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Filipa Trigo da Roza
Melanie Blokesch
8 months ago
Exciting news!! Our latest paper is out in Nat. Microbiol.
@natmicrobiol.nature.com
We show that a sub-lineage of 7th pandemic V. cholerae has acquired mobile genetic elements packed with phage defense systems—rendering it multi-phage resistant 😳 ..... 1/3
www.nature.com/articles/s41...
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West African–South American pandemic Vibrio cholerae encodes multiple distinct phage defence systems - Nature Microbiology
The West African–South American lineage of Vibrio cholerae contains multiple distinct anti-phage defence systems that provide resistance to various phage families, including vibriophage ICP1, a key pr...
https://www.nature.com/articles/s41564-025-02004-9
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reposted by
Filipa Trigo da Roza
Alvaro San Millan
8 months ago
New opinion paper from the lab!
www.cell.com/trends/micro...
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Plasmid–bacteria associations in the clinical context
Antimicrobial resistance (AMR) is one of the most pressing global health problems, with plasmids playing a central role in its evolution and dissemination. Over the past decades, many studies have inv...
https://www.cell.com/trends/microbiology/abstract/S0966-842X(25)00122-2?dgcid=raven_jbs_aip_email
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Filipa Trigo da Roza
Baptiste Darracq
8 months ago
White smoke, we have a new pope and also 16 new anti-phages systems in sedentary integrons (SCIs) ! In collaboration with the Rocha lab, we show in our new paper that cassettes of these large platforms encode many known anti-phage defenses, and uncovered 16 new ones.
www.science.org/doi/10.1126/...
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Sedentary chromosomal integrons as biobanks of bacterial antiphage defense systems
Integrons are genetic systems that drive bacterial adaptation by acquiring, expressing, and shuffling gene cassettes. While mobile integrons are well known for spreading antibiotic resistance genes, t...
https://www.science.org/doi/10.1126/science.ads0768
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reposted by
Filipa Trigo da Roza
Jose A Escudero
8 months ago
🧪 Finally out after peer review, our work showing that "Mobile
#Integrons
carry Phage Defense Systems" is now published in Science 🎉 Short 🧵
www.science.org/doi/10.1126/...
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Mobile integrons encode phage defense systems
Integrons are bacterial genetic elements that capture, stockpile, and modulate the expression of genes encoded in integron cassettes. Mobile integrons (MIs) are borne on plasmids, acting as a vehicle ...
https://www.science.org/doi/10.1126/science.ads0915
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Filipa Trigo da Roza
Melanie Blokesch
8 months ago
Join the Blokesch lab (@EPFL) as a postdoc in Molecular Microbiology 🤩 Study Vibrio cholerae defense systems (phage/plasmid) in a dynamic, collaborative environment in Lausanne close to Lake Geneva in 🇨🇭! Please visit my lab's webpage for details about the position and how to formally apply.
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Filipa Trigo da Roza
Jose A Escudero
11 months ago
So proud of you, Filipa!! I should have posted something, but I was too sick! We will miss you but you have a brilliant future in front of you! Enjoy it!
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What a ride 🥹 Thank you
@jaescudero.bsky.social
and the whole MBA lab 💖💖💖
11 months ago
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reposted by
Filipa Trigo da Roza
Alicia Calvo-Villamañán
11 months ago
Happy International Day of Women and Girls in Science 👩🔬🧬
#womeninscience
#girlsinscience
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reposted by
Filipa Trigo da Roza
Alicia Calvo-Villamañán
11 months ago
🚨 New preprint! We know that plasmids are associated with very variable fitness costs in their different bacterial hosts. But, what is the contribution of each of the plasmid-genes in these host-specific effects? Study led by
@jorgesastred.bsky.social
,
@sanmillan.bsky.social
and myself! 1/14
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Dissecting pOXA-48 fitness effects in clinical enterobacteria using plasmid-wide CRISPRi screens
Conjugative plasmids are the main vehicle for the spread of antimicrobial resistance (AMR) genes in clinical bacteria. AMR plasmids allow bacteria to survive antibiotic treatments, but they also produ...
https://www.biorxiv.org/content/10.1101/2025.01.23.633114v1
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reposted by
Filipa Trigo da Roza
Jose A Escudero
12 months ago
Proud supervisor 🎉❤️
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reposted by
Filipa Trigo da Roza
Alicia Calvo-Villamañán
about 1 year ago
Very happy to see this work published! We unveil a plasmid-chromosome crosstalk by showing that pOXA-48 encodes for a regulator that mediates the transcription of an enterobacterial chromosomal operon, resulting in a growth benefit for the plasmid-carrying bacteria!
www.nature.com/articles/s41...
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A plasmid-chromosome crosstalk in multidrug resistant enterobacteria - Nature Communications
The authors describe a new crosstalk between a globally disseminated carbapenem resistance plasmid and clinical enterobacteria clones. This crosstalk provides a fitness advantage to the plasmid-carryi...
https://www.nature.com/articles/s41467-024-55169-y
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reposted by
Filipa Trigo da Roza
Melanie Blokesch
about 1 year ago
Exciting times! Our latest preprint is now live 🤩! After nearly 16 yrs of running my lab, I truly believe this is one of the most significant contributions we've made. It offers fresh hypotheses about how pandemic Vibrio cholerae spreads globally. Let’s dive in!🧵..1/n
www.biorxiv.org/content/10.1...
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Diverse phage defence systems define West African South American pandemic Vibrio cholerae
Our understanding of the factors underlying the evolutionary success of different lineages of pandemic Vibrio cholerae remains incomplete. Interestingly, two unique genetic signatures define the West ...
https://www.biorxiv.org/content/10.1101/2024.11.23.624991v1
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reposted by
Filipa Trigo da Roza
Jose A Escudero
almost 2 years ago
And its out! New paper for
#integron
aficionados. We found gene-less cassettes in superintegrons that express/silence other cassettes in the array. Here is a 🧵(if I know how to do this in Bluesky...😆)
academic.oup.com/nar/advance-...
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Identification of promoter activity in gene-less cassettes from Vibrionaceae superintegrons
Abstract. Integrons are genetic platforms that acquire new genes encoded in integron cassettes (ICs), building arrays of adaptive functions. ICs generally encod
https://academic.oup.com/nar/advance-article/doi/10.1093/nar/gkad1252/7517494
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reposted by
Filipa Trigo da Roza
Jose A Escudero
about 2 years ago
Check out our last work with Celine Loot, Ole Skovgaard,
@amazeld.bsky.social
and
@sanmillan.bsky.social
. We have deleted the Superintegron from V. cholerae! A long-awaited feat in the field!! Despite losing 3% of the genome, the strain remains phenotipically identical across Manu conditions!! 😵
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Chromosomal Integrons are Genetically and Functionally Isolated Units of Genomes
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
https://www.biorxiv.org/content/10.1101/2023.11.17.567518v1
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