Fig. 4

Expanded gene families, contracted gene families, rapidly evolving gene families and positively selected genes (PSGs) among teleosts and functional enrichment analysis. A PSGs, rapidly evolving gene families, expanded and contracted gene families are shown along the phylogenetic tree (left). The number of four rapidly evolving histone genes in 19 teleosts (right). B KEGG enrichment analysis of expanded gene families in 10 cyprinids. C MP enrichment analysis of PSGs in grass carp