August 16, 2025New PhytologistOpen Access

How evolution repeatedly builds complexity: a case study with C₄ photosynthesis in Blepharis (Acanthaceae)

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Case study uncovers multiple origins of c4 photosynthesis in blepharis, suggesting complex trait evolution.

C4 photosynthesis shows significant diversity in blepharis, revealing multiple evolutionary origins and lineages.
Phylogenetic analysis indicates a stepwise progression from C3 to C4, highlighting rich transitional states among species.
Phenotypic characterization included gas exchange and enzyme assays, supporting theories on complex trait evolution.
The findings suggest that diversity in blepharis rivals that in other known transitional lineages, emphasizing its importance in studies of evolution.

Stata et al. (2025) studied this question.

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