#eukaryogenesis — Public Fediverse posts

Before the 'Oxygen Apocalypse', Earth was purple, the oceans ferrous, and H₂O's oxygen safely locked away 🟣

Then, bacteria developed a quantum lockpick 🗝️⚡

The seas rusted and the ancients died out. Complex organisms burn the fuel of this cataclysm still, but pay the price by ageing 🦠

This is the story of how symmetry saves us from the flames ⚛️

Full post: https://keiran-rowell.github.io/oxygen/2026-04-02-the-oxygen-apocalypse/

#oxygen #science #scicomm #GreatOxidationEvent #photosynthesis #eukaryogenesis #quantumbiology #geology

I am happy to share the unfinished but nevertheless fascinating autobiography of the late Thomas Cavalier-Smith, written in 2020, shortly before Tom passed away in 2021. I thank Ema Cavalier-Smith for sharing the text with me. I recently finished curating the text (small corrections and referencing) https://zenodo.org/records/18733367 #Evolution #Eukaryogenesis #biology #CellBiology

Mid-Proterozoic Expansion Of Passive Margins And Reduction In Volcanic Outgassing Supported Marine Oxygenation And Eukaryogenesis
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https://doi.org/10.1016/j.epsl.2025.119683 <-- shared paper
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https://zenodo.org/records/17353904 <-- supplementary data
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#proterozoic #platetectonics #tectonics #deepcarboncycle #eukaryogenesis #evolutionoflife #life #evolution #geology #geologichistory #pangea #supercontinent #diversification #volcanic #offgassing #marine #thermodynamics #model #modeling #spatialanalysis #spatiotemporal #nuna #subduction #structuralgeology #CO2 #carbondioxide #climate #eukaryotic #BoringBillion #rodinia #oceanbasins #marinechemistry #outgassing #global #earth

#EukaryoticCells emerged as #evolutionary algorithmic phase transition: #Eukaryogenesis happened abruptly, led by the tension of increasing gene length and the constraints on producing longer #proteins // #EvolutionaryBiology #ComputerBiology #evolution

https://nachrichten.idw-online.de/2025/04/17/the-eukaryotic-cell-emerged-as-an-evolutionary-algorithmic-phase-transition

The eukaryotic cell emerged as an evolutionary algorithmic phase transition / Eukaryogenesis happened abruptly, led by the tension of increasing gene length and the constraints on producing longer proteins / Evolvement of the eukaryotic cell is the most significant increase in complexity in the history of life's evolution on Earth 👉 https://press.uni-mainz.de/eukaryotic-cell-emerged-as-evolutionary-algorithmic-phase-transition/

#EvolutionaryBiology #ComputerBiology #eukaryotic #genes #proteins #evolution #EukaryoticCells #eukaryogenesis #biology #physics

Uncovering the Ancient Origins of Key Immune Machinery https://www.ualberta.ca/en/department-of-medicine/news-events/department-news/2024/10/joel-dacks-uncovering-the-ancient-origins-of-key-immune-machinery.html

Evolutionary origins of the #lysosome-related #organelle sorting machinery reveal ancient homology in post-#endosome trafficking pathways: Kiran More et al. https://www.pnas.org/doi/10.1073/pnas.2403601121

"the BLOC machinery plays an important role in #microbes today for our ecosystem and health and may help to explain the #evolution of the basic cellular configuration over 1.5 billion years ago."

#Protists #ImmuneSystem #Eukaryogenesis

#Eukaryogenesis entailed transfer of DNA from #mitochondria to nuclear genomes. @BrEUssMartin re a #PLOSBiology study of #Numtogenesis, extending this process to human somatic cells, correlating with #aging & disease. Primer: https://plos.io/3SW8M3d Paper: https://plos.io/3AyrkAq

https://www.biorxiv.org/content/10.1101/2024.07.04.601786v1

Oxygen processing and electron transport infrastructure in 'Asgard' archaea.

These are the closest relatives to the multi-celled complex lifeforms we see.

Their discovery completely changed how scientists understand the tree of life.

This paper discovers Asgard species and proteins that allow them to 'breathe' oxygen. It was thought archea absorbed bacteria for oxygen processing, but that might not be necessary.

#originsoflife #archaea #eukaryogenesis #evolution

#ISEPpapers 20: April, May, and June 2023 https://www.isep-protists.com/post/iseppapers-20

Your twentieth digest of papers and preprints published by members of the International Society for Evolutionary #Protistology is here!

#protists #protozoa #evolution #algae #archaea #eukaryogenesis #microbes #microorganisms #eukaryotes #microbiology

New clues about origin of complex life trace roots to common ancestor https://phys.org/news/2023-06-clues-complex-life-roots-common.html #archaea #protists #eukaryogenesis

Inference and reconstruction of the heimdallarchaeial ancestry of eukaryotes: Laura Eme et al. https://www.nature.com/articles/s41586-023-06186-2

"the ancestor of all modern Asgards appears to have been living in hot environments, consuming CO2 and chemicals to live. Meanwhile, Hods (more closely related to eukaryotes) are metabolically more similar to us."