Sudanese Copts Show High Malaria Resistance

Why this is here: The research team found that approximately 89% of Sudanese Copts carry the Duffy-null allele, a genetic variant providing protection against Plasmodium vivax malaria.

A team of evolutionary biologists studying Sudanese people found that Copts, a group migrating from Egypt from the 7th century, exhibit unusually high resistance to Plasmodium vivax malaria. The researchers conducted Sudan’s first whole-genome sequencing study, analyzing 125 individuals from five distinct cultural groups. They discovered Copts acquired a protective genetic variant, the Duffy-null allele, through intermarriage with local Nilo-Saharan populations roughly 1,000 to 1,500 years ago.

This allele prevents the malaria parasite from entering red blood cells, and about 89% of Sudanese Copts now carry it. The study also revealed over one million previously unknown genetic variants, highlighting a lack of African representation in global genomic databases.

While the research confirms genetic barriers exist within Sudan’s mountainous regions, it does not pinpoint the exact location where the initial adaptation to malaria occurred. Further research is needed to understand regional variations in disease prevalence and the full extent of this genetic adaptation.