Fig. 2

Geographic distribution of haplotypes and Median-Joining network for the chloroplast locus (a) and two nuclear loci, rpl9 (b) and cpi (c), in 22 populations of Sonneratia alba. Each haplotype was represented by one single circle and haplotype frequency was illustrated by circle size. Haplotypes with close relationship were denoted by the same color. The number of mutations is 1 unless otherwise indicated. Population abbreviations were defined in Table 1