Author

Holly R. Rucker

University of Wisconsin–MadisonORCID 0009-0002-9374-3497Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Evolutionary Biology· 2

Signature Assays, Organisms & Methods

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Research Focus:ecology & biodiversity· 1 Approach:experimental assay· 1 Research Focus:host-pathogen & immune response· 1 Approach:statistical model· 1

Frequent Co-Authors

Betül KaçariD· 2 shared Ariel D. AnbariD· 1 shared Derek F. HarrisiD· 1 shared Eric LibbyiD· 1 shared Kunmanee BubphamaneeiD· 1 shared Kurt O. KonhauseriD· 1 shared Lance C. SeefeldtiD· 1 shared Morgan S. SoboliD· 1 shared

Activity by Year

2024-2026 · peak 1/yr

Co-Author Collaboration Network

9 top collaborators · 21 mutual co-author links

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2 shared papersEvolutionary Biology

Betül KaçarORCID

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2 papers

Recent·Most cited

Resurrected nitrogenases recapitulate canonical N-isotope biosignatures over two billion years

Holly R. Rucker, Kunmanee Bubphamanee, Derek F. Harris, Kurt O. Konhauser, Lance C. Seefeldt, Roger Buick, Betül Kaçar

The paper resurrects ancient nitrogenase enzymes and shows their nitrogen isotope signatures are similar to modern ones, suggesting evolutionary invariance and supporting the use of N-isotope biosignatures for detecting life.

Nature Communications · Jan 22, 2026Peer-reviewedEvolutionary Biology

Ecological resource competition as a driver of metallome evolution

Morgan S. Sobol, Holly R. Rucker, Eric Libby, Betül Kaçar, Ariel D. Anbar

The paper explains the evolutionary timing of nitrogenase isozymes by linking ecological competition for molybdenum to changes in environmental conditions after the Great Oxidation Event.

bioRxiv · Dec 11, 2024 · PreprintEvolutionary Biology