Figure 2

Median joining networks of cpDNA and nDNA of Avicennia species . The haplotype networks of the A) ITS and B) DTHK markers in Avicennia species from the Western, A. bicolor, A. germinans and A. schaueriana, and Eastern Hemispheres, A. marina and A. alba. Each line in the network refers to a single-nucleotide mutation, the double bars combined with numbers indicate the numbers of mutations between haplotypes, and the black dots indicate missing haplotypes in the samples. The circles denote unique haplotypes and are proportional to the number of sequences, with colors representing the samples according to Figure 1 and Additional file 1. A. marina and A. alba, species from the Eastern Hemisphere, are denoted as circles with vertical and horizontal lines, respectively