Encodes a member of the Aux/IAA family of proteins implicated in auxin signaling. IAA20 lacks the conserved degron (domain II) found in many family members, and IAA20 fusion proteins are stable in Arabidopsis seedlings. IAA20 transcripts are induced by auxin treatment, and overexpression of IAA20 leads to defects in gravitropism, root development, root meristem maintenance, etiolation, and cotyledon vascular development. (.1)
QQLPTDLRLGLGISAT at 35/180 in soybean Gm007900 (Type II)
RDLSTDLRLGLGISTS at 37/174 in poplar Pt039254 (Type III)
QELPTDLRLGLGISAT at 35/177 in soybean Gm052949 (Type Ia)
KDLSTDLRLGLSISTS at 37/175 in poplar Pt016750 (Type II)
SLISTDLRLGLTLSSV at 57/205 in rice Os009627 (Type Ib)
DHLRTDLRLGLSISTT at 40/180 in soybean Gm002637 (Type III)
TDLSTDLRLGLSISPS at 119/260 in soybean Gm045965 (Type III)
TDLSTDLRLGLSISPS at 103/244 in soybean Gm035692 (Type III)