Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Map of East Africa and Arabia, with locations of samples collected for the present study. The five cities in Ethiopia where DNA samples were collected are indicated. The main spread zones of the five major Ethiopian linguistic groups that are discussed in the study are shown in blue capital letters.
