Is Photosynthetic Capacity Associated With Diversification of C 3 Plants?

Abstract

Schweiger and Schweiger (2024) recently proposed that the evolution of greater photosynthetic capacity in C 3 plant species may be linked to increased species diversification. This conclusion is premature because their methods cannot reliably estimate diversification rates 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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