I have written a program that allows the genetic landscape obtained from Orinoco to be represented as 3-D animations. The topology of these genetic landscapes indicates genetics barriers.
Mountain tops indicate regions of lowest gene-flow.
Click on the images below to see animations based on Y-chromosomal data from Europe and China . These files are large, 1.6Mb in size so will take a while to download, roughly 30 seconds for a 56K modem.