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the claim

Laboratory evolution experiments successfully drove yeast to evolve true multicellularity

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Multiple laboratory evolution studies confirm that selecting for traits like rapid settling successfully drives unicellular Saccharomyces cerevisiae to evolve multicellular forms.

The analysis

The claim is specific, empirical, and falsifiable. Multiple retrieved papers explicitly describe successful laboratory evolution experiments in which Saccharomyces cerevisiae (yeast) evolved multicellular traits under directional selection (e.g., settling selection). The evidence strongly supports the claim, with no papers refuting it.

Evidence for · 5
Evolution of multicellularity and unicellularity in yeast <i>S. cerevisiae</i> to study reversibility of evolutionary trajectories
Recorded source metadata

Phaniendra Alugoju, Anjali Mahilkar, Supreet Saini. Evolution of multicellularity and unicellularity in yeast <i>S. cerevisiae</i> to study reversibility of evolutionary trajectories. 2020. https://doi.org/10.1101/2020.08.15.252361

The study demonstrates that multicellularity evolves rapidly in S. cerevisiae when selected for fast-settling variants.

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More for · 4
Historical effects during experimental evolution of multicellularity in <i>Saccharomyces cerevisiae</i>
Recorded source metadata

Joleen Khey, Michael Travisano. Historical effects during experimental evolution of multicellularity in <i>Saccharomyces cerevisiae</i>. 2025. https://doi.org/10.1093/evolut/qpaf101

Replicate laboratory yeast populations are shown to rapidly evolve multicellularity via settling selection.

Stochastic phenotypic switching arises in response to directional selection in experimentally evolved multicellular yeast.
Recorded source metadata

Baselga-Cervera B, Medina-Chávez NO, Gettle N, Travisano M. Stochastic phenotypic switching arises in response to directional selection in experimentally evolved multicellular yeast.. 2025. https://doi.org/10.1038/s42003-025-09414-9

Characterizes phenotypic diversity and bistable morphotypes in isogenic populations of experimentally-evolved multicellular yeast.

Obligate multicellularity circumvents population genetic barriers to collective-level adaptation
Recorded source metadata

Peterson A, Burnetti A, Libby E, Campbell J, Ratcliff W. Obligate multicellularity circumvents population genetic barriers to collective-level adaptation. 2026. https://doi.org/10.64898/2026.05.14.725289

Uses experimental evolution with engineered snowflake yeast to study multicellular adaptation and life cycle structures.

Multiple pathways to the evolution of positive assortment in aggregative multicellularity
Recorded source metadata

Stoy KS, MacGillivray KA, Burnetti AJ, Barrett C, Ratcliff WC. Multiple pathways to the evolution of positive assortment in aggregative multicellularity. 2025. https://doi.org/10.1101/2025.02.17.638078

Examines the experimental evolution of flocculating Saccharomyces cerevisiae under selection for rapid settling.

The paper trail · every fact has a biography
first checked01 Aug 2026
judged → SUPPORTED · 7801 Aug 2026
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