Serogenetic studies on the Daga of the interior of the mainland of Milne Bay Province, Papua New Guinea

Abstract

The Daga people of Milne Bay, the easternmost Province of Papua New Guinea, occupy an upland area but do extend to the coast. Linguistically they are Papuan and, unlike their Austronesian-speaking neighbours, they appear originally to have been an exclusively inland people. They have been in contact with missionaries and miners since the turn of the century, and genetic evidence of Caucasoid gene flow may be present in the finding of several lactose absorbers (reported elsewhere). They are the first non-Australian population in whom the second carbonic locus allele CA4II has been detected, which may indicate either recent gene flow from Australian aborigine or lend additional support to the suggestion that there was Australian contact with Papua before the coming of the Europeans. For the rest, their gene-marker profile is fairly typical of a non-highland population of New Guinea, though the low frequency of hereditary ovalocytosis tends to confirm their inland origins.