Figure 6.

(A) Principal component analysis and (B) the hierarchical clustering analysis of the multiple behavior endpoints in several different strains of zebrafish. In Figure 6A, two major clusters from the hierarchical clustering analysis results were marked with the spring green (1st cluster) and orange (2nd cluster) circles (TL = Tübingen Long Fin, PET = Pet Store-purchased, WIK = Wild Indian Karyotype). In addition, the behavioral data from another fish species tiger barb (Puntigrus tetrazona) were also included as the outgroup, to conduct a deeper study about their behavior differences pattern.