Fig. 2: Inbreeding difference between mainland and island populations.

For all panels, continental populations are shown in purple and island populations in blue. A FHBD distributions from continental and island populations. FHBD considers a marker as autozygous if the coalescence event is up to 512 generations ago. B scatter plot of FHBD against FAS. Each point represents one individual and its shape indicates which population it comes from. The black line is the identity line (x = y). C number of HBD segments (NHBD) as a function of the mean length of HBD segments (SHBD) in base-pair. Each point represents one individual and its shape indicates which population it comes from. D HBD segments distributions from continental populations and island populations. The y-axis represents the mean sum of length (among individuals) falling into the different categories of HBD segments (represented in the x-axis).