Ectopic cambia: Connections between natural and experimental vascular mutants.

Keywords: development; ectopic cambia; evolution; secondary growth; successive cambia; vascular cambium; vascular variants EN development ectopic cambia evolution secondary growth successive cambia vascular cambium vascular variants 1 5 5 10/30/23 20231001 NES 231001 One of the most remarkable innovations in the evolution of vascular plants is secondary growth: the developmental process by which plants grow thicker. Development, ectopic cambia, evolution, secondary growth, vascular cambium, successive cambia, vascular variants By adopting the concept of ectopic cambia, we more readily see the links with transgenic phenotypes in model species that also use the term "ectopic cambia" (e.g., Kucukoglu et al., [7]) as a starting place to understand the naturally occuring ectopic cambia across plants. Although these works suggest overexpression of HD-ZIP III genes can induce cortex-derived ectopic cambia, this alone is not sufficient to hypothesize the molecular origins of the vast majority of ectopic cambia, which instead arise from vascular tissues (pericycle or phloem parenchyma). [Extracted from the article]