ReviewPlant molecular biology2026
WUSCHEL in forest trees: evolutionary organizer, vascular architect, and totipotency switch.
Review in Plant molecular biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
Funding
Abstract
The WUSCHEL (WUS) transcription factor is the central organizer of shoot apical meristem (SAM) stem cells, yet its functions in woody plants remain poorly understood. This review synthesizes current knowledge of WUS and WUS-related homeobox (WOX) family genes in forest trees, spanning evolutionary genomics, vascular cambium regulation, somatic embryogenesis(SE), hormonal and environmental signal integration, and biotechnological applications. Comparative genomic analyses reveal "transitional" WUS genes in gymnosperms, illuminating the evolutionary trajectory from ancient to modern meristem regulation. In the vascular cambium unique to woody plants, WOX4 maintains cambial cell identity and prevents ectopic xylem differentiation, while contrasting CLAVATA3/EMBRYO SURROUNDING REGION-related(CLE) peptide pathways-the CLAVATA3(CLV3)-WUS negative feedback in the SAM versus the TDIF-PXY-WOX4 positive axis in the cambium-highlight WUS/WOX functional diversification across meristems. We discuss how WUS and derived functional peptides overcome regeneration recalcitrance, a major bottleneck in forest tree genetic transformation, and examine how cytokinin(CK)-auxin cross-talk, light, nutrient, and abiotic stress signals modulate WUS/WOX expression. Finally, we outline strategies for deploying CRISPR-based WUS regulation to improve wood properties, plant architecture, and stress resilience in forest trees. This integrative perspective positions the WUS/WOX family as a central nexus linking stem cell biology, environmental adaptation, and applied tree breeding.
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Registered trials
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