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Picomonas judraskeda MICHAEL MELKONIAN Picozoans have puzzled scientists ever since their surprising discovery almost 15 years ago. These common, globally distributed microbes are barely bigger than bacteria, yet they’re members of the same domain as animals, fungi, and plants, and everything from what they eat to where they fit into the eukaryotic tree of life has proven difficult to pin down.  Now, a preprint uploaded to bioRxiv on April 14 claims to have found these perplexing microbes an evolutionary home. But the paper, which is currently undergoing peer review, suggests picozoans aren’t done surprising scientists. If the authors’ conclusions are right, then these microbes are indeed algae, even though they seem to lack the group’s most notable feature: plastids, a group of organelles that includes chloroplasts.

United statesUppsala lanMichael sierackiKarolina fuLinda medlinUppsala universityMarine researchAlfred wegener institute for polarAssumption universityNational science foundationBigelow laboratory for ocean sciencesFabien burkiAlfred wegener instituteBigelow laboratoryOcean sciencesஒன்றுபட்டது மாநிலங்களில்