Fig. 1

Schematic representation of the exon-intron compositions and conserved motifs in the BnBOR genes in Brassica napus. a Neighbour-joining (NJ) phylogenetic tree for BnBORs. b Exon-intron organization of BnBOR genes. The wide black boxes represent exons, the narrow black lines represent introns, the white rectangles represent the 5’-UTR and the white arrows represent the 3’-UTR. c Distribution of conserved motifs in BnBOR proteins. Different motifs are shown by different colours numbered 1–10. Some motifs are highlighted with different coloured boxes with numbers. Lines represent protein regions without a detected motif