Beja people
Genetic analysis has supported archaeological hypotheses of a large-scale migrations of Bantu speakers into Southern Africa approximately 5 kya. Microsatellite DNA, single nucleotide polymorphisms (SNPs), and insertion/deletion polymorphisms (INDELS) have shown that Nilo-Saharan speaking populations originate from Sudan. Furthermore, there is genetic evidence that Chad-speaking descendants of Nilo-Saharan speakers migrated from Sudan to Lake Chad about 8 kya. Genetic evidence has also indicated that non-African populations made significant contributions to the African gene pool. For example, the Saharan African Beja people have high levels of Middle-Eastern as well as East African Cushitic DNA.