Plant Transcription Factor Database
Previous version: v3.0
Musa acuminata
GRF Family
Species TF ID Description
GSMUA_Achr10P06370_001GRF family protein
GSMUA_Achr11P21590_001GRF family protein
GSMUA_Achr1P21940_001GRF family protein
GSMUA_Achr1P23840_001GRF family protein
GSMUA_Achr1P27000_001GRF family protein
GSMUA_Achr2P04650_001GRF family protein
GSMUA_Achr3P15140_001GRF family protein
GSMUA_Achr3P22790_001GRF family protein
GSMUA_Achr5P20170_001GRF family protein
GSMUA_Achr6P01270_001GRF family protein
GSMUA_Achr7P02330_001GRF family protein
GSMUA_Achr7P27480_001GRF family protein
GSMUA_Achr8P04970_001GRF family protein
GSMUA_Achr8P12060_001GRF family protein
GSMUA_Achr8P26530_001GRF family protein
GSMUA_Achr8P30640_001GRF family protein
GSMUA_AchrUn_randomP04320_001GRF family protein
GSMUA_AchrUn_randomP15490_001GRF 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