Maps representing the geographic distribution of the main haplogroups.A) Frequency of the A. fallax haplogroups found in 29 populations of A. fallax; and B) Frequency of the A. alosa haplogroups found in nine populations of A. alosa. Numbers correspond to the populations represented in Figure 1 and Tables 4 and 5. Haplotypes resulting from introgression are not shown. Pie charts represent the relative frequency of the main haplogroups found in each sample location.
Faria et al. BMC Evolutionary Biology 2012 12:194 doi:10.1186/1471-2148-12-194