Fig 3. CMI1 loss of function results in enhanced auxin-induced DR5::GUS expression.

Expression level of DR5::GUS auxin response marker in roots of Ler (WT) and cmi1 (B). Note the signal shift toward the columella in cmi1/DR5::GUS (arrow). (C-J) Expression levels of DR5::GUS in LRI of Ler (WT) (C-F) and cmi1 (G-J). CMI1, Ca²⁺-dependent modulator of ICR1; Ler, Landsburg erecta; LRI, lateral root initial; WT, wild type.