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Ancestral karyotype of Pleuronectiformes
Phylogenetic tree construction based on homologous genes and reconstruction of ancestral karyotype with O. latipes ( Matsuda et al., 2002) as an outgroup. Each node contains a number representing divergence time (million years ago, Ma) among species, with red circles highlighting fossil record used for calibration at that node. Red pentagons indicate sex chromosomes. Yellow pentagons indicate nodes representing ancestral chromosomes.
