Fig. 1
From: Convergent evolution of hemoglobin switching in jawed and jawless vertebrates
Expression profiles of sea lamprey aHbs quantified by RNA-seq. The aHb genes were displayed as predominantly expressed in the embryonic (a), larval (b), adult-parasitic (c) and adult-reproductive (d) stages. aHb7 (e) was not assigned to any specific developmental stage. The expression level is indicated as arbitrary units (AU), relative to the highest RPKM of the pool of adult-reproductive aHb1 expression, which is set to 100. Note that the expression levels of aHb2a and aHb2c, and aHb5a and aHb5b, respectively, were almost identical