ISEP

Left: schematic evolutionary tree of eukaryotes highlighting the position of apusomonads close to opisthokonts. Right: Simple schematic representation of the cell of apusomonads.

Discovery of a photophobic response in #Apusomonads reveals insights into Opisthokont origins phys.org/news/2026-02...

New #ISEPpapers! Photophobic response in Podomonas kaiyoae is mediated by coordination of cilia, actin filaments: Aika Shibata et al. www.nature.com/articles/s42...

#Protists

microscopic photos of microbial cells and an evolutionary tree

New #ISEPpapers! Single-cell #phylogenomics identifies major groups of marine eugregarine endosymbionts (Apicomplexa) www.sciencedirect.com/science/arti...

#protists #microbes #parasites #evolution #phylogeny #symbiosis

microscopic photos of elongated algal cells under light and fluorescence microscopy

New #ISEPpapers! A genetic transformation system for the heterotrophic diatom #Nitzschia putrida (Bacillariophyceae) onlinelibrary.wiley.com/doi/10.1111/...

#Protists #Algae #Microbes #Diatoms

a complicated figure from the linked paper that summarizes abundances of microbes

New #ISEPpapers! Legacies of consecutive summer droughts on soil-borne plant parasitic #protists (Oomycota and Phytomyxea) and protistan consumers (Cercozoa) along an experimental plant diversity gradient nph.onlinelibrary.wiley.com/doi/10.1111/...

#Microbes #Parasites #Drought

a complicated figure from the linked paper showing a large circular evolutionary tree and two graphs

New #ISEPpapers #preprint! Environmental #phylogenetics supports a steady diversification of crown #eukaryotes starting from the mid Proterozoic www.biorxiv.org/content/10.6...

#Protists #Microbes #Evolution #Phylogeny #Proterozoic #Eukaryogenesis

schematic representation of various proteins in mitochondria of a microbial cell

New #ISEPpapers! The mitochondrial proteome of #diplonemids: from conventional pathways to eccentric RNA editing and transcript processing link.springer.com/article/10.1...

#Protists #Microbes #Mitochondria #Proteomics #Evolution

a figure from a biology paper showing 3D models of proteins and a circular evolutionary tree

New #ISEPpapers! Endogenized polinton-like viruses in the dinoflagellate #Oxyrrhis marina uncover novel PolB fusion www.microbiologyresearch.org/content/jour...

#Protists #Microbes #Viruses #Genomics

simplified evolutionary trees of single genes from microbes

New #ISEPpapers! Eukaryotic Recombinases Duplicated After Divergence From Known Asgard Archaeal RadA: Implications for the Evolution of Sex During Eukaryogenesis academic.oup.com/gbe/article/... by Lisa Matsuo, @dackslabecb.bsky.social

#Microbes #Archaea #AsgardArchaea #Eukaryogenesis

microscopic photos of green single-celled algae

Discovery of the most intron-rich eukaryotic genome phys.org/news/2025-12...

New #ISEPpapers: Nuclear #genome sequencing reveals the highly intron-rich architecture of the chlorarachniophyte alga Amorphochlora amoebiformis academic.oup.com/dnaresearch/...

#Protists #Algae #Microbes #Genomics

figure from the paper which shows fluorescence microscopy pictures of microbes

New #ISEPpapers! Nuclear genome sequencing reveals the highly intron-rich architecture of the chlorarachniophyte alga Amorphochlora amoebiformis academic.oup.com/dnaresearch/...

#protists #algae #microbes #genomics

figure from the paper with a Venn diagram and a simple evolutionary tree

New #ISEPpapers! Pangenome biology and evolution in harmful algal-bloom-forming pelagophytes www.cell.com/current-biol... #protists #algae #microbes #pangenome #genomics #evolution

a colorful graphic showing presence and absence of various genes across the diversity of eukaryotes

New #ISEPpapers! Tepsin and AP4 mediate transport from the trans-Golgi to the plant-like vacuole in Toxoplasma rupress.org/jcb/article/...

#Toxoplasma #Protists #Parasites #Microbes #Golgi #Evolution

schematic evolutionary tree of eukaryotes with various changes in the genetic code mapped

New #ISEPpapers! Natural and artificial variations of the standard genetic code www.cell.com/current-biol... #Protists #TreeOfLife #Evolution #Microbes #Genetics

microscopic pictures and 3D reconstructions of a microbial cell

Discovery of rare #protist reveals previously unknown branch of eukaryotic tree of life phys.org/news/2025-11...

Rare microbial relict sheds light on an ancient eukaryotic supergroup www.nature.com/articles/s41...

#Protists #Microbes #Evolution #Eukaryotes #TreeOfLife

illustration of some important traits to include in protist trait databases

New #ISEPpapers! Towards a trait-based framework for protist ecology and evolution: Mahwash Jamy et al. www.cell.com/trends/micro...

#protists #algae #microbes #ecology #evolution

various views of microbial cells

New #ISEPpapers! Regulated development of cannibalistic supergiant cells www.biorxiv.org/content/10.1...

"we describe a ciliate undergoing drastic morphological transformations... supergiants increase in size, change shape, and modify behaviour to cannibalize clonal relatives"

#protists #microbes

a figure detailing a proposed evolutionary history of a molecular pathway in eukaryotes

New #ISEPpapers! Selective loss of ATP carriers in favour of SLC25A43 orthologues in metamonad #mitochondria adapted to #anaerobiosis: Natalia Janowicz et al. royalsocietypublishing.org/doi/full/10....

#Protists #Microbes #Evolution #Metamonads #Anaerobes #ProtistsOnSky

a figure from the linked paper showing a heatmap

New #ISEPpapers #preprint! Modeling site-and-branch-heterogeneity with GFmix www.biorxiv.org/content/10.1...

#Evolution #Bioinformatics #Phylogeny #TreeOfLife

simple models of various microbial cells with diverse configurations of flagella

New #ISEPpapers! The fluid dynamics and functional diversity of the flagella of free-living flagellates orbit.dtu.dk/en/publicati...

#Protists #Microbes #FluidDynamics #Biophysics

a simplified evolutionary tree of eukaryotes with presence and absence of various genes mapped on it in the form of white or colorful circles

New #ISEPpapers! Eukaryote-Wide Distribution of a Family of Longin Domain-Containing GAP Complexes for Small GTPases onlinelibrary.wiley.com/doi/10.1111/... by Anna Novák Vanclová et al., @dackslabecb.bsky.social

#Protists #Microbes #Archaea #Eukaryogenesis #Evolution #Eukaryotes

microscopic image of a single-celled organism with two long flagella

Rediscovery of the Protist Glissandra: Elucidating the Common Features of the Uncharacterized CRuMs Lineage www.tsukuba.ac.jp/en/research-...

#ISEPpapers by Euki Yazaki et al.: royalsocietypublishing.org/doi/10.1098/...

#Protists #Microbes #Evolution

a graph showing relative abundance of various microbial groups during two years

New #ISEPpapers! High Protistan Parasite Occurrence During Fall in a Warm, Low Sea Ice Year in the Eastern #BeringSea: Tanika Ladd et al. onlinelibrary.wiley.com/doi/10.1111/...

#Protists #Microbes #Parasites #Ecology #ClimateChange #SeaIce

a figure from a scientific article showing various aspects of a genomic assembly

New #ISEPpapers! New T2T assembly of #Cryptosporidium parvum IOWA II annotated with Legacy-Compatible Gene identifiers www.nature.com/articles/s41...

#Protists #Microbes #Parasites #Genomics #Bioinformatics #Genome #Sequencing

a complicated figure showing several steps in evolution of a molecular mechanism in microbial cells

New #ISEPpapers! Repeated duplications and losses shaped SMC complex evolution from archaeal ancestors to modern eukaryotes: Jolien van Hooff et al. www.sciencedirect.com/science/arti...

#Protists #Microbes #Archaea #Eukaryogenesis #Evolution

microscopic photos of single-celled algae

New #ISEPpapers! An Update on the Morphology and Phylogeny of the Nanoplanktonic Dinoflagellate Prorocentrum nux: Solenn Mordret et al. onlinelibrary.wiley.com/doi/10.1111/...

#Protists #Microbes #Evolution #Algae #Plankton

microscopic pictures of a complicated single-celled organism covered in thin hairs

New #ISEPpapers! Morphology and Molecular Phylogeny of Endosymbiotic #Ciliates (Peritrichia, Mobilida) of Marine #Invertebrates with Descriptions of Two #NewSpecies Urceolaria clepsydra n. sp. and Urceolaria bratalia n. sp. onlinelibrary.wiley.com/doi/10.1111/...

#Protists #Microbes #Symbiosis

schematic representation of a microbe's life cycle

photos of microbes using various types of microscopy

photos and drawings of a microbe

evolutionary tree of eukaryotes

#ISEPpapers 26: October 2024 to March 2025 www.isep-protists.com/post/iseppap...

Your twenty-sixth digest of papers and preprints published by members of the International Society for Evolutionary Protistology is here!

#Protists #Algae #Microbes #Evolution #Bacteria #Archaea #Symbiosis #Parasites

a complicated figure summarizing results of the linked paper

New #ISEPpaper! On the possibility of yet a third #kinetochore system in the protist phylum Euglenozoa journals.asm.org/doi/full/10.... by Corinna Benz et al.

#Protists #Microbes #Evolution #CellBiology

a figure from the linked paper that summarizes evolutionary events of gene loss during the evolution of the discussed bacteria

New #ISEPpapers #prerint! Drastic genome reduction driven by parasitic lifestyle: Two complete genomes of endosymbiotic bacteria possibly hosted by a dinoflagellate www.biorxiv.org/content/10.1...

#bacteria #symbiosis #genomics #algae #protists

a complicated figure summarizing the life cycle of a parasitic microorganism

New #ISEPpaper! Where Is Cryptosporidium Population #Genomics Going Next: The Challenge and the Promise link.springer.com/chapter/10.1...

"Forty years have passed since species of #Cryptosporidium, single-cellular protozoan #parasites were first recognized as significant human pathogens"

#protists