Re: HLA genes in Macedonians and the sub-Saharan origin of the Greeks
Mynydd... it's because of malaria adaptation. Sickle cell anemia appears in Northern Greece where malaria is present, while it's absent in Southern Greece.
The mtDNA and Y-lineages show a completely different picture, history does also, thus, the HLA is interesting, but not even nearly definitive.
Similar thing appears with the 'Aryan invasion', which is confirmed by haplogroup studies, which don't mutate or change nearly as quickly as HLA seems to.
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