Great opportunity to join Lund University as an Assistant Professor in bacterial molecular biology (open to anyone with up to 7 years of experience post-PhD).
lu.varbi.com/en/what:job/...
A phylogenetic tree of insects is shown annotating the presence or absence of a an antimicrobial peptide gene across winged insects
Various phylogenetic secondary loss events are mapped to a tree of insects to explain the parsimony calculations necessary to explain the diversity of insect Drosomycin antimicrobial peptide genes
Antimicrobial peptides (AMPs) are key defence molecules of the innate immune system of plants and animals. Understanding the evolutionary origins of AMPs can help to explain how immune systems acquire novelty and vary in their defensive capabilities. However, AMPs evolve rapidly, and so the origins of similar AMPs across organisms is often unclear. Furthermore, false negatives due to low search sensitivity are common and can hinder confident annotations about true absences. Due to these difficulties, understanding whether similar AMP genes found in diverse organisms represent ancestral molecules or evolutionary novelties has been challenging. In this report, we present evidence of horizontal gene transfer (HGT) of the antifungal peptide gene Drosomycin across insects. We show that in Diptera, the presence of Drosomycin is restricted to the Melanogaster group and additionally the distant relative Drosophila busckii. We go on to recover Drosomycin genes in cockroaches (Blattodea), mantises (Mantodea), one katydid (Orthoptera), various beetles (Coleoptera), and a recently acquired pseudogenized Drosomycin locus in Liposcelis booklice (Psocodea), but no other insects. Explaining this diversity through shared ancestry requires at least 50 independent loss events, or just seven HGT events. Previous studies have suggested that similar AMPs found across divergent species reflect conservation from a common ancestor, or due to their small size, that they arose via convergent evolution resulting from pathogen-imposed selection. Our findings suggest horizontal gene transfer can be responsible for the presence of some AMP genes found scattered across the tree of life. By presenting a mechanism through which immune systems can acquire novelty, our study also suggests a possible explanation for certain lineage-specific competencies for defence against infectious disease. While loss of AMP genes is common in certain lineages, here we suggest gain of AMPs can occur just as suddenly.
Pleased to finally share this fun collab that began at #Ento23
@cedricaumont.bsky.social presented & I had seen NCBI annotated some cockroach genomes as "contaminated." Turns out NCBI & I were wrong (much more fun).
Horizontal transfer of an #AntimicrobialPeptide across insects
bit.ly/DrsHGT
1/π§΅
Amazing opportunity to join the @hassansalem.bsky.social lab studying symbiosis of leaf beetles!
Join @berasymbionts.bsky.social , @tatsuyanobori.bsky.social and us for a postdoc on the remarkable developmental biology of symbiosis!
Applications are due March 25th πͺ²π¦
@johninnescentre.bsky.social @thesainsburylab.bsky.social
π¨JOB alertπ¨
We have three (yes, THREE) πlectureshipsπ advertised in the School of Biological Sciences, University of Bristol.
Broad remit, including #AnimalBehaviour & #GlobalChangeBiology
β±οΈDeadline: 8th March 2026
πPlease circulate widely
πCome join us!
Full #job details: tinyurl.com/y3us95rc
π A parasitic, parthenogenetic ant with only queens and without workers or males π
β¬οΈ
www.cell.com/current-biol...
How to study adaptation in organisms that we canβt see, living in environments that we canβt visit? Some thoughts in our perspective piece out today in @pnas.org www.pnas.org/doi/10.1073/... @biology.ox.ac.uk @stuwest.bsky.social
Entomology technician post in my lab in London (position is for 11 months starting August 2026). The work is about sentience and cognition in a variety of insect species. Thank you for sharing (and applying)! qmul-jobs.tal.net/vx/mobile-0/...
Awesome work Piotr and team! π
The visualization of two bacterial genomes, of 50 and 52kb, representing independent instances of extreme genomic reduction in ancient heritable endosymbionts of planthoppers.
Our new paper in @natcomms.nature.com is now online-early!
We describe independent evolution of bacterial genomes of only ~50β52 kb β the smallest known outside cellular organelles β revealing striking convergence toward minimal gene sets.
π doi.org/10.1038/s414...
Awesome paper guys! ππΌ
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 π¦ πͺ² Out today in @natcomms.nature.com!
1/n
www.nature.com/articles/s41...
Awesome work Ines and Hassan! ππΌ
We understand a great deal about how and why cooperation evolves, but what about its long-term consequences?
Great to see our new review on this out now in @asn-amnat.bsky.social!
Eusociality has independently evolved in multiple arthropod lineages
Eusociality has independently evolved in multiple arthropod lineages
Comparative analysis across 5,678 insect species shows that, when you control for phylogenetic bias, eusociality has not evolved at a faster rate in haplodiploid species. www.pnas.org/doi/10.1073/...
NEW: Registration is now FREE for graduate students and postdocs for the 14th Annual Yosemite Symbiosis workshop. THANKS to the Gordon and Betty Moore Foundation! Space is limited. Learn more and REGISTER here: snri.ucmerced.edu/form/symbios...
@alexdemendoza.bsky.social
Lecturer in Ecology and Evolution position available in Biology Department at Stanford University. Apply by April 1, 2026. (Photo by Rick Morris)
academicjobsonline.org/ajo/jobs/31606
We are hiring for group leaders again β EBI is a great place to start your research group!
embl.wd103.myworkdayjobs.com/EMBL/job/Hin...
Uppsala in late autumn
Join us at the Evolutionary Biology Centre at Uppsala University. Weβre searching for an Assistant Professor in Biology. www.uu.se/en/about-uu/...
New preprint! Symbionts provide critical functionsβbut how do they impact host phenotypes in nature? We show a horizontally transferred plasmid in a heritable symbiont drives divergence in defensive traits across insect populations, revealing how mobile DNA rapidly shapes pathogen resistance. π
Cool study @gunizgozeeren.bsky.social @jameslightfoot.bsky.social and team!
Cool findings!
My team at @cbitoulouse.bsky.social is recruiting a postdoc #bioinformatics with solid experience in metagenomic analyses.
Interest in evolution, ecology & MGEs is important.
The offer stands until the perfect candidate is found, and it could be you π«΅
π π
#microSky #phagesky #UTIsky
@cnrs.fr
Love microbes & omics? π¦ π§¬
Weβre hiring a Postdoc in Public Health Genomics at @unibirmingham.bsky.social
Work on cutting-edge research with wonderful people! @wvschaik.bsky.social @halllab.bsky.social @pathogenomenick.bsky.social @scalene.bsky.social @alanmcn1.bsky.social
π
Closes 4th Feb
Congrats and well deserved Toby! π
Amazing! Well done @tobykiers.bsky.social π
New preprint out!
How do host regulate ancient symbioses to optimise benefits across environments? Using π, we show hosts actively regulate symbionts, flexibly switching between symbiont-derived and environmental nutrients to thrive under changing diets.
π Well done Phoebe and team!
Weβre looking for a postdoc to join the Hendrickson lab!
The project will involve dissecting the molecular mechanisms of a fascinating mobile element in our honeybee biocontrol phages. Sound like something you would be interested in? Get in touch! Details:
jobs.canterbury.ac.nz/jobdetails/a...
Nice paper JB!
