Plant Transcription Factor Database
Previous version: v3.0
Brassica napus
GRF Family
Species TF ID Description
GSBRNA2T00004236001GRF family protein
GSBRNA2T00015890001GRF family protein
GSBRNA2T00016414001GRF family protein
GSBRNA2T00016511001GRF family protein
GSBRNA2T00029783001GRF family protein
GSBRNA2T00037328001GRF family protein
GSBRNA2T00041485001GRF family protein
GSBRNA2T00043309001GRF family protein
GSBRNA2T00048934001GRF family protein
GSBRNA2T00053319001GRF family protein
GSBRNA2T00053590001GRF family protein
GSBRNA2T00054294001GRF family protein
GSBRNA2T00063253001GRF family protein
GSBRNA2T00067232001GRF family protein
GSBRNA2T00071333001GRF family protein
GSBRNA2T00077207001GRF family protein
GSBRNA2T00098678001GRF family protein
GSBRNA2T00100215001GRF family protein
GSBRNA2T00104741001GRF family protein
GSBRNA2T00109151001GRF family protein
GSBRNA2T00116151001GRF family protein
GSBRNA2T00117068001GRF family protein
GSBRNA2T00121599001GRF family protein
GSBRNA2T00123666001GRF family protein
GSBRNA2T00126587001GRF family protein
GSBRNA2T00129429001GRF family protein
GSBRNA2T00131157001GRF family protein
GSBRNA2T00132470001GRF family protein
GSBRNA2T00137647001GRF family protein
GSBRNA2T00138740001GRF family protein
GSBRNA2T00141134001GRF family protein
GSBRNA2T00141814001GRF family protein
GSBRNA2T00154418001GRF family protein
GSBRNA2T00155749001GRF family protein
GRF Family Introduction

Previously, we identified a novel rice gene, GROWTH-REGULATING FACTOR1 (OsGRF1), which encodes a putative transcription factor that appears to play a regulatory role in stem elongation. We now describe the GRF gene family of Arabidopsis thaliana (AtGRF), which comprises nine members. The deduced AtGRF proteins contain the same characteristic regions--the QLQ (Gln, Leu, Gln) and WRC (Trp, Arg, Cys) domains--as do OsGRF1 and related proteins in rice, as well as features indicating a function in transcriptional regulation. Most of the AtGRF genes are strongly expressed in actively growing and developing tissues, such as shoot tips, flower buds, and roots, but weakly in mature stem and leaf tissues. Overexpression of AtGRF1 and AtGRF2 resulted in larger leaves and cotyledons, as well as in delayed bolting of the inflorescence stem when compared to wild-type plants. In contrast, triple insertional null mutants of AtGRF1-AtGRF3 had smaller leaves and cotyledons, whereas single mutants displayed no changes in phenotype and double mutants displayed only minor ones. The alteration of leaf growth in overexpressors and triple mutants was based on an increase or decrease in cell size, respectively. These results indicate that AtGRF proteins play a role in the regulation of cell expansion in leaf and cotyledon tissues.

Kim JH, Choi D, Kende H.
The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis.
Plant J. 2003 Oct;36(1):94-104.
PMID: 12974814