Fig. 4

(a–d) Different expression levels of genes between H. pyrrhocephalus (Hpyr) and H. sp. ‘macula’ (Hmac). Expression was analyzed by qPCR using RNA from eyes (a, each of three individuals) and the anterior part of lateral skin (b–d, 10 individuals each). Gene names are shown at the top of the panels. The direction of blue arrows indicates the gene direction. Black arrows and blue solid lines represent the positions of fixed differences and exons of genes, respectively. The numbers and nucleotides under the numbers in the rectangles indicate the position from the initiation codon and fixed nucleotides in H. pyrrhocephalus (upper) and H. sp. ‘macula’ (lower), respectively