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Fig. 3 | BMC Evolutionary Biology

Fig. 3

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

Fig. 3

Current status and proposed evolutionary history of nucleoplasmin 2 (npm2) genes among gnathostomes. The names of the current representative species of each phylum are given at the end of the final branches, together with a red and/or blue X to denote the npm2 genes they possess (npm2a = red, npm2b = blue). The black X upon an npm2 gene symbol indicates a gene loss. LGD: local gene duplication; TGD: teleost-specific whole genome duplication; SaGD: salmonid-specific whole genome duplication

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