sentence: Comparing the DEGs in the RNA-seq data between anthers and pistils at the same stage , we found six pistil-specific transcription factors , including three tandem CCCH zinc finger proteins ( ZF C3H29 , Solyc05g052550 ; ZF C3H66 , Solyc05g052570 ; and ZF C3HC4 , Solyc01g066430 ) and three ethylene-responsive transcription factor ERF subfamily proteins ( ERF1a , Solyc05g052040 ; ERF , Solyc03g093550 ; and ERF2 , Solyc03g093560 ) , all of which were up-regulated ( Fig. 8) .