Fig. 2From: Genome-wide identification and characterization of the bHLH gene family and analysis of their potential relevance to chlorophyll metabolism in Raphanus sativus LThe exon–intron organization of RsbHLH genes. The yellow box represents the exon, the green box represents the untranslated regions (UTR), and the black line represents the intron. The sizes of exons and introns are estimated by the scale at the bottomBack to article page