KNOX(KNOTTED1-like homeobox)is a family of transcription factors with important functions in plants,which belong to a subfamily TALE(three amino-acid loop extension)superfamily of the homeo-box gene family.Research have shown that members of this family are widely involved in plant growth,de-velopment and morphogenesis.This paper mainly reviews the structure,classification,biological functions and molecular interaction mechanism of KNOX2 genes.The latest research progress is summarized in or-der to provide reference and assistance for further studies on the growth,development,and functions of this transcription factor family in other species.
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