Fig. 4

Hemocyanin expression in myriapods. The mRNA levels of Hc subunits were determined by RNA-Seq based on the transcriptomes (Table 1) and displayed as RPKM values. RPKM numbers are given Additional file 6: Table S3, the abbreviations of the subunits in Additional file 2: Table S2. A figure displaying the log-values is provided as Additional file 5: Figure S2