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AI Summary of Peer-Reviewed Research

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Choanoflagellate multicellularity can arise by clonal and aggregative routes

Biochemistry, Genetics and Molecular Biology research
Photo by Nicola Narracci on Pexels · Pexels License
Research area:Cell biologyCellSalinity

What the study found

The study found that the choanoflagellate Choanoeca flexa can form motile, contractile cell sheets through clonal, aggregative, or mixed mechanisms. It also found that this organism can reversibly shift between unicellularity and multicellularity in its natural splash-pool environment.

Why the authors say this matters

The authors conclude that this clonal-aggregative mode of multicellularity is a versatile strategy for establishing multicellularity in a variable, fast-fluctuating environment. The findings indicate that they challenge earlier generalizations about choanoflagellates and expand the range of known choanozoan multicellularity.

What the researchers tested

The researchers characterized the life history of C. flexa in ephemeral splash pools on Curaçao. They examined how sheet formation occurs, how the organism transitions between unicellular and multicellular states during evaporation-refilling cycles, and how genetic differences among pool populations affect aggregation.

What worked and what didn't

C. flexa sheets could form purely clonally, purely aggregatively, or by combining both processes. The study also found that different splash pools contained genetically distinct strains, and kin recognition limited aggregation between them. The abstract does not describe any experimental failure beyond this constraint on aggregation.

What to keep in mind

The summary is limited to what is stated in the abstract. The abstract does not provide detailed methods, quantitative results, or specific limitations beyond the described ecological setting and kin-recognition constraint.

Key points

  • Choanoeca flexa can form multicellular sheets by clonal, aggregative, or mixed mechanisms.
  • The organism can reversibly switch between unicellularity and multicellularity in splash pools.
  • Different splash pools contained genetically distinct strains of C. flexa.
  • Kin recognition constrained aggregation between strains.
  • The authors say this strategy is versatile in a variable, fast-fluctuating environment.

Disclosure

Research title:
Choanoflagellate multicellularity can arise by clonal and aggregative routes
Authors:
Núria Ros-Rocher, Josean Reyes-Rivera, Uzuki Horo, Chantal Combredet, Yeganeh Foroughijabbari, Ben T. Larson, Maxwell C. Coyle, Erik A. T. Houtepen, Mark J. A. Vermeij, Jacob L. Steenwyk, Thibaut Brunet
Institutions:
Centre National de la Recherche Scientifique, Institut Pasteur, Université Paris Cité, Howard Hughes Medical Institute, University of California, San Francisco, Rensselaer Polytechnic Institute, University of California, Berkeley, Harvard University, Caribbean Research and Management of Biodiversity Foundation, University of Amsterdam
Publication date:
2026-02-25
DOI:
10.1038/s41586-026-10137-y
OpenAlex record:
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Image credit:
Photo by Nicola Narracci on Pexels · Pexels License
AI provenance: This post was generated by OpenAI. The original authors did not write or review this post.

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