Fig 4. Pairwise genetic versus geographic and color distance.

Pairs of Aedes aegypti collected in Singapore (upper graphs) and Townsville (lower graphs). A value of zero for Rousset’s genetic distance (â) indicates a distance between a pair of individuals randomly drawn from a given sample, while a negative value indicates lower than average genetic distance between a pair (i.e. their higher relatedness). Color distance between pairs of individuals was treated as a binary value: 0 (same color/form) and 1 (different color/form).