Fig. 4

SplitsTree network, estimated with the Median Network method (Huson DH and Bryant D 2006), illustrates the relationships of MTB stains in Oman and countries of origin for expatriates. Samples from Oman are in bold black. Red colors correspond to Asian origins; green colors correspond to African origins. IN denotes India, PK denotes Pakistan, BD indicates Bangladesh, PH denotes Philippines, EG indicates Egypt, TZ designated Tanzania and ET represents Ethiopia. Samples labeled “ind” were produced specifically for this project. To reduce clutter, some labels were omitted for countries with multiple samples in the same n.