Figure 1From: Mapping codon usage of the translation initiation region in porcine reproductive and respiratory syndrome virus genomeThe CUB degree of translation initiation region in PRRSV ORFs, the white bar represents US serotype while the gray represents EU. A, ORF1a; B, ORF2; C, ORF3; D, ORF4; E, ORF5; F, ORF6; G, ORF7.Back to article page