close loci of SPL10 and SPL11 make it diffi cult to obtain
an spl10 spl11 double mutant (Supplementary Fig. S1). For
primary analysis, we used chimeric repressor gene-silencing
technology (CRES-T), in which a chimeric repressor suppresses the expression of target genes efficiently, even in
the presence of redundant transcription factors ( Hiratsu
et al. 2003 , Matsui et al. 2005 , Mitsuda et al. 2005 , Mitsuda
et al. 2006 , Koyama et al. 2007 , Mitsuda et al. 2007 ). DNA
encoding the chimeric repressor, in which SPL10 was fused
to the repression domain (SRDX) in the C-terminus and
driven by the caulifl ower mosaic virus (CaMV) 35S promoter
(35S:SPL10SRDX), was transformed into Arabidopsis.