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Items tagged with: evolution

Gene body methylation suppresses intragenic transcription and permits epigenetic inheritance in a cnidarian

nature.com/articles/s41559-026…

#epigenetics #evolution

Gene body methylation suppresses intragenic transcription and permits epigenetic inheritance in a cnidarian - Nature Ecology & Evolution

Experiments in the cnidarian Nematostella vectensis show a role of gene body methylation in transposable element suppression and that epigenetic inheritance is constrained by chromatin context and transcriptional activity.
Nature
#Evolution #epigenetics

I just finished reading an interesting article in #QuantaMagazine about recent research on bird eyes. Unlike our inferior mammal eyes, bird eyes lack the network of blood vessels covering the retina. When an optometrist shines a bright light in our eyes, we see a network of blood vessels that block parts of our vision. Sleight of hand from our brain removes this from our perception, but it permanently limits what we see.

Birds retinas don’t do this at all, and it turns out that this is made possible by using a form of glucose-driven metabolism that doesn’t require oxygen. That’s crazy for such an energy intensive tissue. No other species alive today do this, and it likely evolved in dinosaurs.

It’s wild stuff.

quantamagazine.org/how-the-bir…

#birds #evolution #eyes #biology

How the Bird Eye Was Pushed to an Evolutionary Extreme | Quanta Magazine

The bird retina is one of the most energetically expensive tissues in the animal kingdom, yet it doesn’t use the energy advantage of oxygen. New research finally explains how this is possible.
Yasemin Saplakoglu (Quanta Magazine)
#birds #Evolution #biology #QuantaMagazine #eyes

#Evolution

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#News: Our brains are wired to hear #chimps! 🧐📢🎤🦍 #Research finds a part of #human #brains lightS up for #chimpanzee calls. We share communication roots with our cousins. Protect them! 🧬🗣️✨ #Evolution #BoycottPalmOil #Boycott4Wildlife @palmoildetectives sciencedaily.com/releases/2025…

Human brains light up for chimp voices in a way no one expected

Humans don’t just recognize each other’s voices—our brains also light up for the calls of chimpanzees, hinting at ancient communication roots shared with our closest primate relatives.
ScienceDaily
#News #Research #Evolution #human #Boycottpalmoil #Boycott4Wildlife #chimps #brains #chimpanzee @Palm Oil Detectives

Newly Discovered Stentor Species Can Learn – and May Know What Time it Is

mbl.edu/news/newly-discovered-…

And original article:

Stentor stipatus is a new unicellular species that demonstrates habituation and unique phototaxis

nature.com/articles/s41598-026…

#microbiology #evolution #ecology

Stentor stipatus is a new unicellular species that demonstrates habituation and unique phototaxis - Scientific Reports

Stentor, the genus of large trumpet-shaped ciliates, is well-known for its complex morphology and striking behaviors. Members of this genus are distributed throughout the world in a wide and diverse pool of freshwater ecosystems.
Nature
#ecology #Evolution #microbiology

A symbiotic origin of the ribosome?

"The origin of life is one of the great mysteries of science. Of the multiple unsolved problems, the origin of the translation system (the means by which the genetic code inscribed on chromosomes is converted into reliable protein sequences) remains the most enigmatic"

academic.oup.com/pnasnexus/art…

#biology #evolution #microbiology

#Evolution #biology #microbiology

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How a #parasite gave up sex to find more hosts—and why its victory won't last phys.org/news/2026-01-parasite…

Host range expansion of asexual parasite can be explained by loss of adaptions in Muller’s Ratchet nature.com/articles/s41467-025…

"an asexual lineage of #Giardia managed to infect a wider range of hosts than its sexual ancestor... at a cost. Because these #parasites don't exchange genetic material, harmful mutations build up over time, leading to eventual collapse"

#Protists #Microbes #Evolution

How a parasite 'gave up sex' to find more hosts—and why its victory won't last

Australian researchers have uncovered how a particular strain of a diarrhea-causing parasite managed to infect more animal species, offering new insights into how parasitic infections emerge and spread to people.
Walter and Eliza Hall Institute (Phys.org)
#Evolution #protists #microbes #parasites #parasite #giardia

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Hägglund et al. employed sequence-based and structure-based search methods to investigate the origin of the anammoxosome, the only known energy-producing organelle in bacteria, and its key enzyme, the hydrazine synthase complex.

🔗 doi.org/10.1093/gbe/evaf244

#genome #evolution #bacteria

#Evolution #bacteria #genome

#science #Evolution #ants

#Evolution #bacteria #genomics #archaea

Excited to announce our article, "EvoWeaver: large-scale prediction of gene functional associations from coevolutionary signals" was just published in Nature Communications!

We demonstrate that it's possible to infer how genes work together using only sequencing data by leveraging correlated signals of evolution. Check it out at the link below!

#genomics #bioinformatics #rstats #genetics #evolution #biology

nature.com/articles/s41467-025…

EvoWeaver: large-scale prediction of gene functional associations from coevolutionary signals - Nature Communications

Despite having structures for most proteins, we still do not know their function. Here, authors introduce EvoWeaver, a de novo method to identify genes working together using evolutionary information.
Nature
#Evolution #biology #bioinformatics #rstats #genomics #genetics

#ecology #Evolution

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#MolecularClock analysis shows #bacteria used oxygen long before widespread photosynthesis
phys.org/news/2025-04-molecula…

A geological timescale for bacterial #evolution and oxygen adaptation science.org/doi/10.1126/scienc…

"the earliest aerobic transition occurred in an ancestor of photosynthetic #cyanobacteria, indicating that the ability to utilize trace amounts of oxygen may have allowed the development of genes central to oxygenic #photosynthesis."

Molecular clock analysis shows bacteria used oxygen long before widespread photosynthesis

Microbial organisms dominate life on Earth, but tracing their early history and evolution is difficult because they rarely fossilize. Determining when exactly a particular group of microbes first appeared is especially hard.
Okinawa Institute of Science and Technology (Phys.org)
#Evolution #bacteria #cyanobacteria #photosynthesis #molecularclock

#Evolution #academicjobs #viruses #virology #facultyhiring

New preprint by the group I am doing my PhD in: “Chromosomal plasticity can drive rapid adaptation in bacteria”.

This is the first chapter of Ever Vega-Cabrera's thesis and has been in the works for a long time.

biologists.social/@biorxiv_evo…

doi.org/10.1101/2024.12.11.627…

A short thread

1/5

@biorxiv_evobio #microbiology #bacteria #evolution #EvolutionaryBiology

Chromosomal plasticity can drive rapid adaptation in bacteria

Understanding the molecular mechanisms underlying rapid adaptation to stress is a fundamental question in evolutionary biology.
bioRxiv
#Evolution #bacteria #microbiology #evolutionarybiology

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Would highly recommend Every Living Thing by Jason Roberts - wonderful dual biography of Linnaeus and Buffon. Many fascinating anecdotes about both - especially Linnaeus, who was a bit of a character.

#books #science #ScienceHistory #evolution

#books #science #Evolution #sciencehistory

#science #Evolution #bacteria #bioinformatics #genomics

#science #Evolution #biology #genome

#animals #Evolution #biology #protists #symbiosis #symbionts #microbes #iseppapers #parasites #trichomonas

#Evolution #biology #protists #microbes #algae #iseppapers #parasites #organelles

#science #Evolution #biology #genome

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How #baleen #whales have adapted over past 50M years
The new study "Into the Blue: Exploring #genetic mechanisms behind the #evolution of #baleenwhales," explores key genetic adaptations of these diverse #whale species around #oceans—giving new insights into risks and opportunities for their survival. The study looks at intriguing mammals—from gigantism of largest blue and fin whales, to diving and migratory abilities of other whales: including humpbacks, minkes & gray.
phys.org/news/2024-08-blue-bal…

Into the blue: How baleen whales have adapted over the past 50 million years

The largest dataset of cetacean genes ever collated has helped Flinders University scientists deep dive into the blue to fathom the triumph of baleen whale evolution.
phys.org
#Evolution #whale #oceans #whales #genetic #baleen #baleenwhales

#science #Evolution

#Evolution #bioinformatics

Terrabacteria: redefining bacterial envelope diversity, biogenesis and evolution

nature.com/articles/s41579-024…

#microbiology #evolution #science

Terrabacteria: redefining bacterial envelope diversity, biogenesis and evolution - Nature Reviews Microbiology

In this Review, Gribaldo and co-workers explore the diversity and evolution of Terrabacteria and highlight their unique cell envelopes that deviate from Gram-positive and Gram-negative classifications, challenging traditional views on the bacterial c…
Nature
#science #Evolution #microbiology

#Evolution #life #biology #Cladistics

#science #Evolution #microbiology #microbes

#science #Evolution #biology #genome #evolgen_paper

#Evolution #protists #microbes #iseppapers #flagellates #Eukaryogenesis

#Evolution #microbiology

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PhD studentship to characterise aphid immune evolution. Lots to uncover in an insect group with major ecological & economic impact. Aphid systemic immunity is a black box. The interested PhD candidate will both provide one of the first detailed descriptions of aphid immunity, but also uncover principles of immune evolution.

Deadline July 29th at #UoExeter
Email or DM for details🐘 📩
m.hanson@exeter.ac.uk

#Genomics #Aphid #Genetics #Immunity #Evolution #Drosophila

#Evolution #genomics #immunity #drosophila #genetics #uoexeter #aphid

#Evolution #marine #VirginiaTech #sponges

#Evolution #biology #epigenetics #genomic #gradual #horizontal_gene_transfer

I am very pleased to share with the mastodon community the first part of my PhD work:

High prevalence of Prdm9-independent recombination hotspots in placental #mammals

biorxiv.org/content/10.1101/20…

This work was done in collaboration with @djivanprentout Alexandre Laverré, Théo Tricou and @duret_lbbe. (1/8)

#Recombination #PopGen #Evolution #gBGC #PRDM9

High prevalence of Prdm9-independent recombination hotspots in placental mammals

In many mammals, recombination events are concentrated into hotspots directed by a sequence specific DNA-binding protein named Prdm9.
bioRxiv
#Evolution #mammals #popgen #Recombination #gBGC #PRDM9 @djivanprentout @duret_lbbe

Stochasticity, determinism, and contingency shape genome evolution of endosymbiotic bacteria

nature.com/articles/s41467-024…

#evolution #microbiology #genomics

Stochasticity, determinism, and contingency shape genome evolution of endosymbiotic bacteria - Nature Communications

Endosymbionts often have small genomes that maintain minimal functions required to serve their hosts. This study examines cases of new endosymbiont acquisition and finds genome degeneration involves both stochastic and deterministic processes that sh…
Nature
#Evolution #microbiology #genomics

#Evolution #geochemistry #originoflife

Widespread occurrence and diverse origins of polintoviruses influence lineage-specific genome dynamics in stony corals

academic.oup.com/ve/advance-ar…

#viruses #coral #evolution #genomics

Widespread occurrence and diverse origins of polintoviruses influence lineage-specific genome dynamics in stony corals

Abstract:. Stony corals (Order Scleractinia) are central to vital marine habitats known as coral reefs. Numerous stressors in the Anthropocene are contribu
Stephens, Danae (Oxford University Press)
#Evolution #genomics #viruses #coral

#Evolution #viruses

Happy to share the latest manuscript from our lab, in which we propose that eukaryotes evolved from a genomic chimera of Asgard archaea and giant viruses.

biorxiv.org/content/10.1101/20…

This is a controversial topic, but we believe we have strong evidence to suggest a critical viral role in eukaryogenesis.

#viruses #protists #eukaryotes #evolution #TreeOfLIfe #archaea

Chimeric Origin of Eukaryotes from Asgard Archaea and Ancestral Giant Viruses

The details surrounding the evolution of complex cells remain some of the most enduring mysteries in biology.
bioRxiv
#Evolution #protists #viruses #eukaryotes #archaea #TreeOfLife

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Two lifeforms merge in once-in-a-billion-years #evolutionary event
Scientists have caught a once-in-a-billion-years evolutionary event in progress, as two lifeforms have merged into one organism that boasts abilities its peers would envy. Last time this happened, Earth got plants. The #algae Braarudosphaera bigelowii has been found to have absorbed a #cyanobacteria called UCYN-A, which may be a huge step forward for #evolution.
newatlas.com/biology/life-merg…

Two lifeforms merge in once-in-a-billion-years evolutionary event

Scientists have discovered that a once-in-a-billion-years evolutionary event is underway, as two lifeforms have merged into one organism that boasts abilities its peers would envy. Last time this happened, Earth got plants.
Michael Irving (New Atlas)
#Evolution #cyanobacteria #algae #evolutionary

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