Summary of the estimates of gene flowbased on Bayesian inferences of migration rates and population sizes using MIGRATE-N 3.2.6 among Astyanaxs mexicanus population clusters within each geographical region. The arrows represent directions of migration and the thicknesses are proportional to the M (the ratio of immigration rate and mutation rate). Populations are coded as follows: El Abra caves (O1 - O7); Guatemala (N1 - N2); Micos (N3), Chica (O8); Surface (S1 - S4). Asterisk denotes mixed populations.
Bradic et al. BMC Evolutionary Biology 2012 12:9 doi:10.1186/1471-2148-12-9