Principal Coordinate Analyses of Jaccard distance matrix of Pokey profiles and Bruvo distance matrix of microsatellite diversity in diploid and polyploid isolates of the Daphnia pulex complex. (A) Pokey profiles generated using TE display; (B) Microsatellite genotypes determined by Vergilino et al. . The first two axes are represented in each graph. Empty symbols are diploids and solid symbols are polyploids. Empty orange circles: diploid hybrids with D. pulex mitochondrial haplotypes; solid orange circles: triploid hybrids with D. pulex mitochondrial haplotypes; solid square: D. middendorffiana sensu stricto; empty black triangles: diploid D. tenebrosa; solid black triangles: triploid D. tenebrosa; solid red triangle: introgressed D. tenebrosa with a D. pulex nuclear genome; solid green diamond filled with orange: triploid hybrids with D. pulicaria mitochondrial haplotypes.