Tetraodon genome confirms Takifugu findings: most fish are ancient polyploids
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Genome Biology 2004, 5:250 doi:10.1186/gb-2004-5-12-250Published: 25 November 2004
An evolutionary hypothesis suggested by studies of the genome of the tiger pufferfish Takifugu rubripes has now been confirmed by comparison with the genome of a close relative, the spotted green pufferfish Tetraodon nigroviridis. Ray-finned fish underwent a whole-genome duplication some 350 million years ago that might explain their evolutionary success.