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Gilberto Ocampo

Researcher at Autonomous University of Aguascalientes

Publications -  32
Citations -  664

Gilberto Ocampo is an academic researcher from Autonomous University of Aguascalientes. The author has contributed to research in topics: Portulaca & Portulacaceae. The author has an hindex of 11, co-authored 31 publications receiving 546 citations. Previous affiliations of Gilberto Ocampo include Rancho Santa Ana Botanic Garden & California Academy of Sciences.

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Molecular phylogenetics of suborder Cactineae (Caryophyllales), including insights into photosynthetic diversification and historical biogeography.

TL;DR: Reconstruction of photosynthesis diversification showed C(3) to be the ancestral pathway, a shift to C(4) in Portulacaceae, and five independent origins of Crassulacean acid metabolism (CAM) showed Cactineae were inferred to have originated in the New World.
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Molecular phylogenetics, historical biogeography, and chromosome number evolution of Portulaca (Portulacaceae).

TL;DR: The analyses strongly support the monophyly of Portulaca, with an age of the most recent common ancestor (MRCA) of 23 Myr and a number of chromosome number change events shown to have occurred in the genus, especially within the Oleracea clade.
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Evolution of leaf anatomy and photosynthetic pathways in Portulacaceae

TL;DR: The diversity of leaf anatomical types and C4 biochemical variants suggest multiple independent origins of C4 photosynthesis, and evidence for a switch from C4 to C3-C4 intermediacy supports the hypothesis that intermediates represent a distinct successful strategy.