Fig 1
(a) The phylogenetic tree was constructed using the ML method with 1,000 bootstraps. The cyan square represents teleost-specific whole genome duplication (TS-WGD, or 3R-WGD) and green triangles represent the fourth-round whole genome duplication (4R-WGD) occurred before the speciation of the common ancestor of common carp and goldfish. (b) Dashes are introduced to improve the alignment. The T-box domain is marked by colored boxes. (c) The gray boxes indicate untranslated regions. Yellow boxes indicate exons, and red boxes indicate exons encoding the T-box domain. The dash lines indicate the target sites.