Figure S6
Illustration of phylogenetic relationship matrixes (Cacti) obtained from Saguaro. Both horizontally and vertically the first samples are from the west and then followed by the eastern samples. The horizontal and vertical white lines separate the eastern from the western samples. The yellow line separates the samples from Mexico from other samples. While none of the relationships separated eastern and western monarchs, three samples from Big Sur (visible as the differently shaded bands) appeared to cluster together.