Is photosynthetic capacity associated with diversification of C 3 plants?

2025 · doi:10.22541/au.176463134.40258199/v1
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Abstract

Schweiger and Schweiger (2024) recently proposed that evolution of greater photosynthetic capacity in C 3 plant species may be linked to increased species diversification. Here I argue that this conclusion is premature because their methods cannot reliably estimate diversification rate or ancestral trait values. Reanalyzing the data set using model-based phylogenetic comparative methods reveals no evidence that photosynthetic capacity is associated with diversification rates among C 3 plant genera.
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This is a preprint and has not been peer reviewed. Data may be preliminary. Is photosynthetic capacity associated with diversification of C 3 plants? Abstract Schweiger and Schweiger (2024) recently proposed that evolution of greater photosynthetic capacity in C 3 plant species may be linked to increased species diversification. Here I argue that this conclusion is premature because their methods cannot reliably estimate diversification rate or ancestral trait values. Reanalyzing the data set using model-based phylogenetic comparative methods reveals no evidence that photosynthetic capacity is associated with diversification rates among C 3 plant genera. Supplementary Material File (ms.pdf) - Download - 200.34 KB Information & Authors Information Version history Peer review timeline Published Ecology Letters Version of Record10 Feb 2026Published Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Authors Metrics & Citations Metrics Article Usage 197views 157downloads Citations Download citation Christopher Muir. Is photosynthetic capacity associated with diversification of C 3 plants?. Authorea. 01 December 2025. DOI: https://doi.org/10.22541/au.176463134.40258199/v1 DOI: https://doi.org/10.22541/au.176463134.40258199/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu.

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last seen: 2026-05-20T01:45:00.602351+00:00