The tiller angle, one of the critical factors that determine the rice plant type, is closely related to rice yield. An appropriate rice tiller angle can improve rice photosynthetic efficiency and increase yields. In this study, we identified a transcription factor, TILLRE ANGLE CONTROL 8 (TAC8), that is highly expressed in the rice tiller base and positively regulates the tiller angle by regulating cell length and endogenous auxin content; TAC8 encodes a TEOSINTE BRANCHED1/CYCLOIDEA/PCF transcriptional activator that is highly expressed in the nucleus. RNA-seq revealed that TAC8 is involved ma...
