Fig. 1

PCA (a) and ADMIXTURE (b) analysis indicate clear separation of the two major sheep groups. The GROUP1 includes Edilbai, Tuva, Karakul, Karachaev, Lezgin, Buubei, Romanov breeds and the GROUP2 includes Russian Longhaired, Altai Mountain, Groznensk, Volgograd, Baikal, Krasnoyarsk, Salsk, and Kulundin breeds