Figure 1. Geographic sampling. Locations of the 19 Arabian
Peninsula sampling sites, including eight from the Red Sea, five from
the Arabian Sea/Sea of Oman, and six from the Persian/Arabian Gulf. Dark
green shading represent the distribution of mangrove populations along
the Arabian coasts, obtained from Spalding, Kainuma and Collins
(12 ). Leaf tissue was collected from ten trees per sampling site
for DNA extraction and whole genome sequencing. An eastern Australian
population was also included as an outgroup (not shown).