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PEPC Gene Family Evolution Across Arecaceae: Complete Five-Subfamily Evidence for a Two-Lock Model of Irreversible C4 Exclusion

2026-07-16

Abstract excerpt

<h4>Background</h4> C4 photosynthesis has evolved more than sixty times across flowering plants, but never in palms. Over 2,500 palm species have spent more than 100 million years in high-light, water-stressed habitats where C4 physiology would be advantageous, yet none have taken this path. Phosphoenolpyruvate carboxylase (PEPC) is the enzyme that gates entry into the C4 pathway. In every C4 grass, a commelinid-...

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Literature Corpus work: 1b4424f5-83d3-53cf-95e4-4c4e42f59476
DOI: 10.64898/2026.07.10.737709

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PEPC Gene Family Evolution Across Arecaceae: Complete Five-Subfamily Evidence for a Two-Lock Model of Irreversible C4 ExclusionDOI 10.64898/2026.07.10.737709Read

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