PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Salvia splendens
GRF Family
Species TF ID Description
TEY12662.1GRF family protein
TEY18677.1GRF family protein
TEY21529.1GRF family protein
TEY27306.1GRF family protein
TEY31723.1GRF family protein
TEY36219.1GRF family protein
TEY36220.1GRF family protein
TEY36481.1GRF family protein
TEY41617.1GRF family protein
TEY45681.1GRF family protein
TEY46730.1GRF family protein
TEY49814.1GRF family protein
TEY52262.1GRF family protein
TEY54551.1GRF family protein
TEY55222.1GRF family protein
TEY56873.1GRF family protein
TEY58992.1GRF family protein
TEY62001.1GRF family protein
TEY71872.1GRF family protein
TEY74449.1GRF family protein
TEY79101.1GRF family protein
TEY80686.1GRF family protein
TEY83644.1GRF family protein
TEY90662.1GRF 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