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Specification of embryonic shoot stem cells via a small RNA-driven morphogenic circuit

Qi Li Cecilia Lara-Mondragón A. Feller Arvid Herrmann Steffen Knauer M. Galli Xi-Xi Zheng Caroline Marcon F. Hochholdinger A. Gallavotti Marie Javelle Marja Timmermans
Aug 2026 · bioRxiv · 0 citations · 65 references
Biology

TL;DR

The small RNA tasiARF initiates a self-reinforcing morphogenic circuit connecting cell wall mechanics, auxin signaling, and regulated cell division to specify embryonic shoot stem cell fate, revealing how lineage-specific regulatory innovation can preserve a conserved developmental output across divergent embryonic architectures.

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