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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Double maternal-effect: duplicated nucleoplasmin 2 genes, npm2a and npm2b, with essential but distinct functions are shared by fish and tetrapods

Fig. 4

Tissue distribution of nucleoplasmin (npm) 2a and npm2b in different species. Tissue expression analysis by quantitative real-time PCR of npm2a and npm2b mRNAs in (a) zebrafish and (b) Xenopus. Expression level is expressed as a percentage of the expression in the ovary for the most expressed gene. Data were normalized using 18S expression. N = 3 individual animals. (c-j) Tissue expression level by RNA-Seq of npm2a and npm2b mRNAs in different fish species. mRNA levels are expressed in read per kilobase per million reads (RPKM). In salmonids (i and j), the two ohnologs of npm2b are npm2b1 and npm2b2. Br, brain; Gi, gills; Lu, lung; In, intestine; Li, liver; Mu, muscle; He, heart; Bo, bone; Ki, kidney; Ov, ovary; and Te, testis

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