Fig. 1: Collection sites.

Samples were collected in Mali (dark blue), Cameroon (turquoise), Zambia (dark green), Tanzania (light green), and the Comoros (purple for Grande Comore, orange for Mohéli, red for Anjouan). A map of the three islands of the Comoros enlarged for details is shown in the upper right corner. The CleanTOPO2 basemap was used as background.