Gene structures and identification of the putative cis-acting regulatory elements (CREs) of the <i>CLC</i> family genes in <i>B</i>. <i>napus</i>.

The exon-intron structures of the CLCs were determined by the alignments of coding sequences with corresponding genomic sequence (A). The yellow boxes represent exons, blue boxes indicate upstream or down- stream, and the lines represent introns. The diagram is obtained using GSDS Web server. Over-presentation of the CREs in the promoters of the BnaCLC family genes is delineated by the Word Art program (B). The bigger the font size is, the larger the CRE number is.