Protist diversity and phylogeny

Phylogeny-aware simulations suggest a low impact of unsampled lineages in the inference of gene flow during eukaryogenesis

The paper uses simulations to assess how unsampled lineages affect gene flow inference during eukaryogenesis, finding low misinterpretation probability but specific problematic cases.

Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making

The paper studies a dinoflagellate's tripartite symbiosis, showing a cyanobacterium in transition to an organelle, replacing the host's non-photosynthetic plastid.

Phylogenomics of free-living neobodonids reveals they are a paraphyletic group from which all other metakinetoplastids are descended

The paper presents transcriptomic data for 11 free-living neobodonid kinetoplastids and reveals they are paraphyletic, with other metakinetoplastids descending from them.

Single-cell sequencing reveals unexpected genetic diversity among Bodo spp. flagellates and their bacterial endosymbionts

The paper uses single-cell sequencing to reveal genetic diversity in Bodo flagellates and their bacterial endosymbionts, showing SSU rDNA is insufficient for species classification.

Evaluating acidotropic dyes for detecting mixotrophy in protists: Insights from cultures and field communities

This study evaluates two acidotropic dyes for detecting mixotrophy in protists using lab cultures and field samples, finding they have mixed success with false positives and negatives.

Cryptic Cryptophytes-revision of the genus Goniomonas

The paper reclassifies the genus Goniomonas by splitting it into multiple new genera based on genetic and morphological data, addressing the divergence between marine and freshwater species.

Rethinking large scale phylogenomics with EukPhylo v1.0, a flexible toolkit to enable phylogeny-informed data curation and analyses of diverse eukaryotic lineages

EukPhylo v1.0 improves phylogenomic analysis of eukaryotes by enabling contamination removal, gene family estimation, and transparent, repeatable tree construction.

Bacteria induce an amoeboid phase in coccolithophores that persists after bloom collapse

The paper identifies an amoeboid phase in coccolithophores triggered by bacteria, which persists after bloom collapse and may provide bacterial resistance.

Twelve species of human parasites make up half of the literature on microbial eukaryotes

The paper quantifies research focus on microbial eukaryotes, finding 12 human parasite species account for 47% of literature mentions despite comprising only 1% of known species.

Pyrumthecina Infraorder Nov.: Revisiting the morphological diversity and identifying the phylogenetic home of Argynnia within Arcellinida (Tubulinea:Amoebozoa)

This study resolves the phylogenetic placement of Argynnia by analyzing genomic data and proposes a new infraorder and family to accommodate it within Arcellinida.

Regulated development of cannibalistic supergiant cells

The paper describes the regulated development of cannibalistic supergiant cells in a ciliate, showing they are distinct, transcriptionally unique stages triggered by internal and external factors.

CSI-SSU: Phylogenetic contamination screening of genomic datasets, demonstrated on the Protist 10,000 Genomes (P10K) database

CSI-SSU screens genomic datasets for contamination and taxonomic accuracy using phylogenetic methods, demonstrating its utility on the P10K database.

Pangenome biology and evolution in harmful algal-bloom-forming pelagophyte algae

The paper investigates genome evolution in pelagophyte algae, identifying lateral gene transfers contributing to pangenome diversity and ecological success.

High throughput in situ imaging reveals complex ecological behaviour of giant marine mixotrophic protists

This study uses high-frequency in situ imaging to analyze the ecological behavior of mixotrophic Rhizaria, finding that mixotrophs better control their position and orientation in the water column.

Genomes of nitrogen-fixing eukaryotes reveal a non-canonical model of organellogenesis

The paper analyzes genomes of nitrogen-fixing eukaryotes to show that endosymbionts can function as integral cell compartments without significant genetic integration.

Population genomic insights into syntrophic symbioses between marine anaerobic ciliates and intracellular methanogens

The paper analyzes genomic data from marine anaerobic ciliates and their methanogenic symbionts to understand transmission modes and population divergence in syntrophic symbioses.

Phagocytosis repurposed: infection strategies in a globalmarine diatom-parasite interaction

This study investigates the infection strategies of the marine diatom parasite Pirsonia using genomic and transcriptomic analyses, revealing its reliance on actin-based phagocytosis and surface proteins.

Systematic discovery of bacterial symbionts in rumen ciliate protozoa

The paper identifies multiple bacterial endosymbionts in rumen ciliate protozoa using genome-resolved metagenomics, revealing new insights into microbial symbiosis.

Phylogenetic position and mitochondrial genome evolution of 'orphan' eukaryotic lineages

The paper analyzes mitochondrial genomes of orphan eukaryotic lineages to clarify their phylogenetic positions and evolutionary relationships.

A red algal polysaccharide influences the multicellular development of thechoanoflagellate Salpingoeca rosetta

The paper shows that a red algal polysaccharide induces multicellular development in the choanoflagellate Salpingoeca rosetta without bacterial input.

Description of three new predator species of Litostomatea (Alveolata, Ciliophora), including sequencing and annotation of their mitochondrial genomes

The paper describes three new species of ciliates, including mitochondrial genome sequencing and annotation, and reports phylogenetic findings on their classification.

Subcellular proteomics of Paradiplonema papillatum reveals digestive capacity of the cell membrane and the plasticity of peroxisomes across euglenozoans

The paper performs subcellular proteomics on Paradiplonema papillatum, identifying 4,870 proteins across 22 compartments and revealing carbohydrate metabolism capabilities and peroxisome plasticity.

Switch in parasitic and autotrophic-dominated protist assemblages coupled to seasonal oligotrophic-mesotrophic gradients in the sunlit layer of a subtropical marine ecosystem

The paper examines seasonal changes in protist communities in the Gulf of Aqaba, showing shifts between parasitic and autotrophic dominance linked to nutrient and mixing conditions.

Molecular phylogeny of the SELMA translocation machinery recounts the evolution of complex photosynthetic eukaryotes.

The paper conducts a genomic and phylogenetic analysis of the SELMA complex in CASH lineages to infer the evolutionary history of secondary red plastids.

The adaptation of chlamydiae to facultative host multicellularity

This study identifies a chlamydial symbiont in Dictyostelium giganteum that lacks an extracellular stage, showing how chlamydiae adapt to facultative multicellularity.

Seasonal dynamics of mixotrophic phytoplankton in a freshwater habitat revealed by single-cell sorting

This study uses single-cell sorting to identify and track seasonal changes in mixotrophic phytoplankton in a freshwater habitat, revealing their ecological roles and diversity.

Warming increases richness and shapes assemblages of eukaryotic parasitic plankton

This study shows that warming increases eukaryotic parasite richness and alters their assemblages in freshwater lakes, with stronger host-parasite richness correlations in heated lakes.

Long-range actin-driven endosymbiont mobility in a deep-diverging bilaterian

The paper discovers host actin-driven mobility of symbionts in a dinoflagellate-acoel worm symbiosis, revealing previously unknown mechanisms of host-mediated movement.

Protists Exhibit Stronger and More Recent Oceanic Genetic Structure than Archaeplastida and Metazoa

This study shows protists have stronger and more recent oceanic genetic structure than Archaeplastida and Metazoa, suggesting human-mediated dispersal influences their distribution.

Glissandra oviformis n. sp.: a novel predatory flagellate illuminates the character evolution within the eukaryotic clade CRuMs

This study describes a new predatory flagellate species, Glissandra oviformis, and uses phylogenomic analysis to place it within the CRuMs clade, contributing to understanding character evolution in this group.