Fig 1. Frequency of LP in various ethnic groups from Central Asia inferred from genotyping data (−13.910:C>T).

(A) Frequency per ethnic group. (B) Average frequency per subsistence mode. *It is unclear whether Uzbeks have been mostly herders or famers in the past. They were not included when grouping populations by subsistence modes. ^#Turkmen are currently herders but were shown to be genetically Indo-Iranian [60] and were suggested to be former farmers who later experienced a culturally mediated change of subsistence mode. “N” is the number of individuals genotyped. LP, lactase persistence.