Figure 3

Unrooted dendrograms of 53 partial Pokey sequences from isolates of the Daphnia pulex complex. (A), (B) and (C) represent trees constructed from three regions of recombinant Pokey sequences (bp 1 to approximately bp 540, bp approximately 540 to approximately bp 820, and bp approximately 820 to approximately bp 1,450, respectively) defined by recombination breakpoints identified by GARD analysis. Colors represent species or hybrid state of isolates: red = D. pulex, light blue = D. arenata, grey = D. tenebrosa, black = European D. pulex, dark blue = European D. pulicaria, green = D. pulicaria, orange = putative pulex-pulicaria hybrids, purple = the isolate with D. tenebrosa mtDNA and a D. pulex nuclear genome. GARD, Genetic Algorithm for Recombination Detection.