Access through your institution Buy or subscribe The root epidermis is patterned into trichoblasts, which form root hairs, and atrichoblasts, which do not. This patterning depends on a complex genetic network that converges on GLABRA2, which suppresses root hair development in atrichoblasts, but which is itself repressed in trichoblasts, leading to the activation of genes such as ROOT HAIR DEFECTIVE 6 (RHD6) involved in root hair differentiation. This genetic network main...