Fig. 1.

Recent Danio phylogenies disagree on the sister group to zebrafish and other relationships. (A) Topology from Mayden et al. (2007) recovered by parsimony and ML from two nuclear and four mitochondrial genes that involved 6,921 positions. (B) Topology from Fang et al. (2009) recovered by ML from Rhodopsin and Cytb sequences that involved 1,542 positions. (C) Topology from Tang et al. (2010) recovered by parsimony based on two nuclear and two mitochondrial genes that involved 4,117 positions. (D) Topology from Tang et al. (2010) recovered by ML based on the same data as in (C). To simplify comparisons across studies, all topologies are presented as phylograms and show support only for the sister group to Danio rerio. In each phylogeny, tips labeled as D. albolineatus and D. choprae species groups include two or more taxa included in these groups.