Figure 4

Factorial correspondence analysis (FCA) of microsatellite DNA variation for (a) all samples included in the study and (b) only those form GBL. Also shown is a neighbour-joining (NJ) tree based on Cavalli-Sforza and Edwards (1967) chord distance (DCE) for microsatellite data shown for (c) all samples in the study and (d) only those from GBL. Sample codes are shown in Table 1.