FIGURE 3. Haplotype network for P in Phylogeny and genetic variation within the widely distributed Bluntnose Minnow, Pimephales notatus (Cyprinidae), in North America

FIGURE 3. Haplotype network for P. notatus. Median-joining haplotype network for the mitochondrial (cytb) gene examined for P. notatus. Each circle represents a different haplotype; circle sizes are proportional to the number of individuals possessing a particular haplotype. Major drainages are represented by different colors. Small red dots represent missing (unsampled or extinct) haplotypes. Lines between circles represent one mutational step, and numbers presented are the number of mutations between haplotypes. Dotted-square-lines depict two major lineages resolved in mtDNA phylogenetic analyses. Dotted-circle depicts a subclade represented in detail (inset). One specimen from P. tenellus was included for comparisons.