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Ramya Ganesan

@chaintist.bsky.social
647 followers 580 following 11 posts

Postdoc @gimminstitute.bsky.social | insect - microbe symbioses, microbial ecology and evolution | Also enjoys cartooning | 🪲& 🐝 | She/her Art portfolio: chaintist.wordpress.com Shop: www.redbubble.com/people/Chaiintist…

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Reposted by Ramya Ganesan
EvoKE @evokeproject.bsky.social · 30/07/2026
"Birds of a feather flock together". But sometimes, the unlikeliest of pairs form lasting bonds. Take mutually beneficial symbioses in nature between animals, animals and bacteria or plants and bacteria. Or even humans and bacteria! 🧪🧵 #Evolution #EvoKE #InternationalFriendshipDay #Animalsymbiosis
A graphic with two colourful photos and bold text in the middle: "Happy Friendship Day". The top photo shows the African buffalo with a bird (red-billed oxpecker) perched on its head. The bottom photo shows a clownfish among sea anemone tentacles. A small overlaying text reads: "to my symbiont in crime!"
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EvoKE @evokeproject.bsky.social · 23/07/2026
Meet the #EvoKE Communications Team 📣 We have different backgrounds and a shared passion for evolution education and science outreach 🧵1/10 #EvolutionEducation
A graphic with the EvoKE logo and text: "Meet the Communications Team". On a bright lime green background there are graphic shapes of snail shells and portrait photos of 7 people.
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EvoKE @evokeproject.bsky.social · 18/07/2026
Mary Leakey spent nearly 30 years searching the sediment layers of Olduvai Gorge in Tanzania alongside her husband Louis. On July 17, 1959, with Louis home sick, she spotted two large teeth jutting out of a hillside and instantly knew she was looking at one of our ancient relatives 🧪🧵
A graphic with a blac and white photograph of a woman. The text reads: Women in Evolution - Mary Leakey
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EvoKE @evokeproject.bsky.social · 20/07/2026
What do pea plants have to do with evolution? 🌱 More than you might think. Gregor Mendel's careful experiments uncovered the rules of inheritance, explaining how traits are passed from one generation to the next. Gregor Mendel was born #OTD in 1822! 🧪 #GregorMendel #Evolution #Genetics #EvoKE
A graphic with the text "Happy Birthday Gregor Mendel" in bold letters, a black-and-white photo of Mendel, and pea plants with purple and white flowers. Black EvoKE logo is included.
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Conference on Beneficial Microbes @benmicrobesmtg.bsky.social · 10/07/2026
The 2026 Conference on Beneficial Microbes will be co-organized with the International Symbiosis Society from July 19th - July 23rd. Its not too late to register! #BeneficialMicrobes10 #BeneficialMicrobesMtg #ISS #SymbioSky
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Nancy Moran @nancy-moran.bsky.social · 02/07/2026
A step forward in discovering Buchnera's key to the aphid's heart, published today! Thanks to Jerry Maeda and other authors--a great team -- and to the helpful reviewers #SymbioSky doi: doi.org/10.1038/s415...
doi.org
A secreted endosymbiont protein essential for colonizing host cells - Nature
SyeA was present in the Buchnera ancestor, is secreted into the host cytoplasm, is homologous to secreted effectors of bacterial pathogens and is essential for Buchnera transmission.
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Alejandro Manzano Marín @amanzanom.bsky.social · 30/06/2026
Proposed terminology for referring to the homes of #symbionts within their ( #insect ) hosts " #Symbiotic organs in #insects: diversity, functional implications, and terminology " w/ @kaltenpoth-lab.bsky.social and co., not in bsky doi.org/10.1098/rstb... #SymbioSky
doi.org
Symbiotic organs in insects: diversity, functional implications, and terminology
Abstract. With over a million described species, insects represent the most successful group of animals on Earth. One of the drivers of insect diversity is
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Philip Ball @philipcball.bsky.social · 15/06/2026
Here's my review for @theguardian.com of @rowhoop.bsky.social's superb new book Togetherness. I recommend it highly. www.theguardian.com/books/2026/j...
theguardian.com
Togetherness by Rowan Hooper review – a stunning portrait of cooperation in nature
This corrective to our habitual emphasis on competition had me writing ‘wow’ in the margins again and again
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Alejandro Manzano Marín @amanzanom.bsky.social · 17/04/2026
Missed this one when it came out. #Genome degradation results in nested #symbiosis and #endosymbiont replacement in #cicadas doi.org/10.1038/s414... #SymbioSky
doi.org
Genome degradation results in nested symbiosis and endosymbiont replacement in cicadas - Nature Communications
The evolutionary mechanisms leading to symbiont replacement in insects are not well understood. Zhou et al. show that genome degradation results in nested symbiosis and endosymbiont replacement in cic...
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EvoKE @evokeproject.bsky.social · 05/06/2026
🧪#WorldEnvironmentDay Modern humans are the outcome of billions of years of cosmic history, biological evolution, and countless chance events. If Earth's 4.5-billion-year history lasted just one minute, Homo sapiens would appear only in the final 0.004 seconds.
A graphic showing a picture of the planet Earth on dark green background. The text reads: "World Environment Day". In a smaller font below: "Humans: a blink in Earth's history. A huge impact on its future"
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EvoKE @evokeproject.bsky.social · 22/05/2026
On the 22 of May, we celebrate the International Day for Biological Diversity. For us at EvoKE, it’s an occasion to share the message that all life on Earth is a product of biological evolution and is constantly evolving! Learn more in the thread below👇 #BiodiversityDay 🧪 @unbiodiversity.bsky.social
A brightly coloured graphic with photos of a variety of different organisms (e.g. a mushroom, a butterfly, a snail, an oak leaf, a brightly coloured fish, barnacles). The text reads: EvoKE invites you to celebrate with us the International Day for Biodiversity. May 22. Apart from the EvoKE logo, the graphic also includes the official logo of The International Day for Biodiversity 2026, developed by The Secretariat of the Convention on Biological Diversity. Photo credits: Xana Sá-Pinto, Dorota Paczesniak, Magnific: www.magnific.com
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EMBL Events @events.embl.org · 20/05/2026
In March, we welcomed more than 130 participants to #EESSymbiosis. Among 52 posters, 5 were recognised with prizes. Congrats to: 🧪 Rudvi Pednekar 🧪 Ronja Krüsemer 🧪 Dongik Chang Learn more about their research: s.embl.org/ees26-03-poster-winners
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EvoKE @evokeproject.bsky.social · 18/05/2026
EvoKE wishes you a Happy International Museum Day! What’s your favorite museum to learn about evolution? Tell us in the comments or tag a museum we should follow and discover!
A graphic celebrating International Museum Day. The design features large white and black text reading “Happy International Museum Day” on a vibrant lime-green background. A dinosaur skeleton dominates the right side, alongside fossils, a monarch butterfly, fern leaves, a hummingbird and an ornate golden frame. A white DNA strand illustration and a museum ticket runs through the background, and the EvoKE logo appears in the top-right corner. The overall design is inspired by natural history museums and evolution.
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Alejandro Manzano Marín @amanzanom.bsky.social · 15/04/2026
Cellular remodeling of ovarian follicular epithelial cells transmits an obligate nutritional #endosymbiont in a #scaleInsect #Insignibacter tubulum, novel nutritional endosymbiont of #Insignorthezia insignis doi.org/10.1073/pnas... #SymbioSky
doi.org
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...
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Rebecca J Hall @drrebeccajhall.bsky.social · 05/03/2026
www.nature.com/articles/s41... #microsky #symbiosky
nature.com
Tryptophanase disruption promotes insect–bacterium mutualism - Nature Microbiology
Disruption of a single gene encoding tryptophanase makes Escherichia coli mutualistic in a stinkbug model owing to the accumulation of tryptophan and a reduction in toxic indole. This gene is typicall...
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Piotr Lukasik @sympiotr.bsky.social · 11/02/2026
Our new paper in @natcomms.nature.com is now online-early! We describe independent evolution of bacterial genomes of only ~50–52 kb — the smallest known outside cellular organelles — revealing striking convergence toward minimal gene sets. 🔗 doi.org/10.1038/s414...
The visualization of two bacterial genomes, of 50 and 52kb, representing independent instances of extreme genomic reduction in ancient heritable endosymbionts of planthoppers.
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bioRxiv Microbiology @biorxiv-microbiol.bsky.social · 07/02/2026
Pervasive and dynamic gut dysbiosis in wild bumble bees is linked to the host life cycle www.biorxiv.org/content/10.64898/20…
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Prof Paula Salgado @pssalgado.bsky.social · 05/02/2026
Niche #microsky question: if you have a Cerillo microplate reader in a shaker, how reliable is it? Do you have issues with OD reading stability? Would you recommend if there are issues with false high OD due to aggregation? Pls share! Thanks!
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Ramya Ganesan @chaintist.bsky.social · 25/01/2026
A bumblebee mimic hoverfly #insect #entomology . . Shop: www.redbubble.com/people/Chaii... Page: chaintist.wordpress.com
Digital art of a bumblebee mimic hoverfly which does an impressive job of looking just like a furry bumblebee. I imagine it must've once contemplated whether to "bee" or not to "bee"
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STCmicrobeblog @stcmicrobeblog.bsky.social · 16/12/2025
have you ever heard of "bacterial heterologous multicellularity" ? meet 𝘊𝘩𝘭𝘰𝘳𝘰𝘤𝘩𝘳𝘰𝘮𝘢𝘵𝘪𝘶𝘮 𝘢𝘨𝘨𝘳𝘦𝘨𝘢𝘵𝘶𝘮, once thought to be one species, but it's actually two... #MicroSky #SymbioSky (from the STC archive)
smallthingsconsidered.blog
How do they make it work?
Genomic Revelations on a Bacterial Consortium by Johnna L. Roose — Do you ever look at a couple and wonder… ‘Why are they together? What does X see in Y. I just don’t get it. Is X in it only for t…
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Holly Bik @hollybik.bsky.social · 17/12/2025
Announcing our next #NSFfunded workshop on "Telling Stories Through Data", co-lead by myself + @vgwschutte.bsky.social! It’s half bioinformatics data viz & half #SciComm - this year’s focus is host-associated microbiome datasets. Apply here to join us (form closes 1/10) bit.ly/TSTD2026 #symbiosky
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Insect Symbiosis Lab @kaltenpoth-lab.bsky.social · 03/11/2025
How host and symbiont cells interface in intimately symbiotic associations is still poorly undersood. @annazaidmanremy.bsky.social and her team @inrae-umr-bf2i.bsky.social identifed now a complex network of membraneous tubules containing carbohydrates presumably feeding Sodalis symbionts of weevils!
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STCmicrobeblog @stcmicrobeblog.bsky.social · 19/11/2025
👇 #SymbioSky
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Ramya Ganesan @chaintist.bsky.social · 17/11/2025
Also on my Redbubble shop: www.redbubble.com/people/Chaii... #SymbioSky
redbubble.com
Chai_ntist Shop | Redbubble
Chai_ntist is an independent artist creating amazing designs for great products such as t-shirts, stickers, posters, and phone cases.
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Ramya Ganesan @chaintist.bsky.social · 16/11/2025
FISH images of microbial cells in host organs/ tissues sometimes remind me of Van Gogh's starry night. Am I the only one? No? Yes? Maybe? Anyways, I just wanted to recreate it ;) #microbiomesky #microbiome #art
Inspired by Van Gogh's famous painting, "starry night", this digital artwork shows microbes swimming in the "night sky" just like stars above rolling hills and a town.
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François Leulier @francoisleulier.bsky.social · 07/11/2025
The 2nd edition of Comprehensive Molecular #Insect Science is out. As section editor for #Immunity and #Symbiosis, I had the privilege to work with outstanding contributors. Other sections cover #genomics, #physiology, #neurobiology, and #ecology 🔗 www.sciencedirect.com/referencewor... #SymbioSky
sciencedirect.com
Comprehensive Molecular Insect Science
Comprehensive Molecular Insect Science, Second Edition is a unique resource that provides extensive review articles on contemporary topics in insect s...
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Rita Rebollo @ritarebollo.bsky.social · 03/11/2025
Hi! Florence Hommais, @nicolasparisot.bsky.social , and I are looking for a postdoctoral candidate to investigate the molecular dialogue between three weevil species and their endosymbiotic bacteria #symbiosis! Please see the #post-doc offer for more information. #SymbioSky #Bioinformatics
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Ramya Ganesan @chaintist.bsky.social · 01/11/2025
Had to draw a cartoon for this fascinating finding! Defensive fungal symbiosis on insect hindlegs: www.science.org/doi/10.1126/... #SymbioSky
A cartoon/ digital drawing summarising the findings of the paper "Defensive fungal symbiosis on insect hindlegs" by T. Nishino et al published in 2025. On the top left, a female Megymenum gracilicorne bug shows off symbiotic organs on the hind legs where she carries Ascomycota fungi. These were previously assumed to be Tympanal organs in these bugs but only females had them?; that didnt make a whole lot of sense to the authors...To the right of the bug is a row of eggs lying side by side. The paper shows that the bugs deposit the symbiotic fungi on the egg surface after egg-laying. Next on the image, fungal conidia grow on the egg surface. The eggs are pinkish in colour. A few fungi wear sunglasses like they are body guards. The paper shows that they protect the eggs from Trissolcus brevinotaulus, a parasitoid wasp, that likes to lay its eggs inside the developing bug's eggs. There are two wasps in this cartoon "eyeing" the fungi and looking frustrated. Eggs turn from whitish to pinkish within 10-days because they are reflecting the body colour of the nymph within the eggs.
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Miguel Ángel González Porras @mag-porras.bsky.social · 29/10/2025
Bacterial tubular networks channel carbohydrates in insect endosymbiosis: Cell www.cell.com/cell/fulltex...
cell.com
Bacterial tubular networks channel carbohydrates in insect endosymbiosis
Bacteria with an intracellular lifestyle need to feed from inside their host cells. This study shows an adaptation of certain symbiotic bacteria, allowing them to actively retrieve nutrients from the ...
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Christian Kost @kostchristian.bsky.social · 28/10/2025
#microsky #mevosky @spp2389.bsky.social A PhD position is available in my lab to work on: Emergence and self-organisation of bacterial metabolism in consortia of cross-feeding bacteria. Please RT Deadline: 12.11.25 More infos 👇 shorturl.at/rAKAT
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Ramya Ganesan @chaintist.bsky.social · 23/10/2025
Do you like microbes and insects, and would like to get your favourites printed on articles or clothing? check out my art prints on Redbubble: www.redbubble.com/people/Chaii... Happy to take requests to add to this collection too :) #sciart #art #symbiosis #microbes #insects
redbubble.com
Chai_ntist Shop | Redbubble
Chai_ntist is an independent artist creating amazing designs for great products such as t-shirts, stickers, posters, and phone cases.
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Jordan Collver @jordancollver.bsky.social · 17/10/2025
Here's a comic about a new approach to antibiotic-resitant bacteria I made for Louisiana State University with @fromthelabbench.bsky.social and @jpjordan.bsky.social #sciart Read the full comic and learn more about the research on the LSU website: www.lsu.edu/winning-team...
Comic page about how bacteria are able to internally store just the right amount of iron to survive, and a new drug can block their storage which kills the bacteria. The story is centred around a doctor and patient, and athropomorphic bacteria.
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Anurag Agrawal @anurag-asclepias.bsky.social · 17/10/2025
New biology: stink bugs inoculate their eggs with a fungus that protects them from parasitoids www.sciencemagazinedigital.org/sciencemagaz...
sciencemagazinedigital.org
Science Magazine - Defensive fungal symbiosis on insect hindlegs
Tympanal organs have repeatedly evolved in diverse insects and were thought to be required for auditory perception (1).
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Alejandro Manzano Marín @amanzanom.bsky.social · 19/09/2025
#Symbionts with eroded genomes adjust gene expression according to host life-stage and environment #SymbioSky @kaltenpoth-lab.bsky.social doi.org/10.1038/s443...
doi.org
Symbionts with eroded genomes adjust gene expression according to host life-stage and environment | EMBO reports
imageimageThe symbionts of Donaciinae, despite having severely eroded genomes of around 0.5 Mbp, exhibit specific transcriptional responses that allow them to react to changes both within and across h...
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Ramya Ganesan @chaintist.bsky.social · 10/09/2025
A small carpenter bee poised on a leaf🐝 #bees
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Aileen Berasategui @berasymbionts.bsky.social · 08/09/2025
🚨 Save the date! Thrilled to be co-organizing the next iteration of the @embl.org Symposium on the Cellular Mechanics of Symbiosis (📅 March 17-20), w/ @floravincent.bsky.social, @hassansalem.bsky.social & Tom Richards. www.embl.org/about/info/c... #EESSymbiosis #Symbiosis #SymbioSky #MicroSky 🦠
embl.org
The cellular mechanics of symbiosis: sensing friend from foe
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Romana Yáñez, PhD @romanayanez.bsky.social · 10/09/2025
"MicroMundo" 🖌️ Illustration of a petri dish with soil bacteria colonies. Three of them produce antibacterial compounds, visible as clear halos with no growth around them. #MicrobeArt2025 #InternationalMicroorganismDay
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Tobias Engl @tcsengl.bsky.social · 27/03/2025
A long, long time ago, we started this review project during the first Coron lockdown, but if finally made it out into the world - Origin and function of beneficial bacterial symbioses in insects! @naturerevmicro.bsky.social
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Luís M. Silva @luismsilva.bsky.social · 14/03/2025
Working on a little educational/sci-comm project about microbial life and symbiosis 🦠🧫 Pls share and send me your favorite and most interesting symbiont or pathogens from any form of life :) 👽 Happy to acknowledge all of your contributions! 🥳 #MicroSky #SymbioSky
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Samir Giri @isamirgiri.bsky.social · 04/03/2025
Cool new paper by @shetoot.bsky.social Shitut et al. shows Bacteria with multiple different chromosomes can survive broad antibiotic exposure Check it out 👇 www.sciencedirect.com/science/arti...
sciencedirect.com
Bacterial heterozygosity promotes survival under multidrug selection
Although bacterial cells typically contain a single chromosome, some species are naturally polyploid and carry multiple copies of their chromosome. Po…
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STCmicrobeblog @stcmicrobeblog.bsky.social · 24/02/2025
schaechter.asmblog.org/schaechter/2... sorry that it took solong @tcsengl.bsky.social #MicroSky #SymbioSky
schaechter.asmblog.org
Protections and Interactions in the Beewolf Nursery
by Tobias Engl — Beewolves, their larvae, and their Streptomyces symbionts not only use multiple, largely different classes of chemical compounds to protect themselves against detrimental microbial co...
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Pedro Vale @pfvale.bsky.social · 06/02/2025
PhD Summer School on Host-Microbe Symbioses. Awesome topic. Unbeatable location. #symbiosky #microsky #evobio gimm.idloom.events/phd-summer-s...
gimm.idloom.events
PhD Summer School on Host-Microbe Symbioses 2025
PhD Summer School on Host-Microbe Symbioses Gulbenkian Institute for Molecular Medicine (GIMM) & Católica Biomedical Research Centre (CBR) July 06 -19, 202...
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Matteo Farinella (he/him) @matteofarinella.bsky.social · 15/01/2025
Nice to see #portfolioday taking over Bluesky! Here are 4 of my all time favorite #illustrations to kick off the year - check out my website for more #sciart and science #comics matteofarinella.com
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Twisteddoodles @twisteddoodles.bsky.social · 19/12/2024
Science festive puns #science
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Ramya Ganesan @chaintist.bsky.social · 18/11/2024
Hi! I'm restarting my project to cartoon and post about cool animal - microbe symbioses. First up, Burkholderia bacteria, the symbiotic "superheroes" of Lagria beetles. I did my PhD work on identifying mechanisms that help this ectosymbiont establish in the host :) #SymbioSky
A cartoon with six panels. Lagria beetle eggs are protected from fungal pathogens by Burkholderia symbionts that produce antibiotics. The mother beetle smears then onto the surface during egg-laying. The symbionts are taken up by the larvae into dorsal surface "crypts" once they hatch.
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Javier Santoyo @jsantoyo.bsky.social · 16/11/2024
Genome dynamics across the evolutionary transition to endosymbiosis. #GenomeDynamics #Endosymbiosis #CurrentBiology #Genomics #Genomics #BioSky #SciSky 🧪🧬 www.cell.com/current-biol...
cell.com
Genome dynamics across the evolutionary transition to endosymbiosis
Many insects carry heritable bacterial symbionts, but the evolution of vertical (parent-to-offspring) transmission is poorly understood. Using the genus Arsenophonus, Siozios et al. show that microbes...
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christoph_STCmicrobeblog @christophstc.bsky.social · 20/08/2024
IMHO a must-read for *every* microbiologist (sensu lato) #MicroSky
leeuwenhoek microscope
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STCmicrobeblog @stcmicrobeblog.bsky.social · 31/07/2024
#SymbioSky a great continuation of the story from takema fukatsu's lab that STC reported on earlier > schaechter.asmblog.org/schaechter/2... journals.asm.org/doi/10.1128/...
journals.asm.org
Host range of naturally and artificially evolved symbiotic bacteria for a specific host insect | mBio
How does host-symbiont specificity emerge at the very beginning of symbiosis? This question is difficult to address because it is generally difficult to directly observe the onset of symbiosis. Howeve...
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Alejandro Manzano Marín @amanzanom.bsky.social · 28/06/2024
Reposting for #SymbioSky, originally from @tcsengl.bsky.social. Symbiosis in context: Connecting insights across systems and scales When? 7th-10th October 2024 Where? Rothenburg Germany Some of the invited speakers in here @jillianmpetersen.bsky.social @keyfm.bsky.social
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