Black Americans' genes reflect the hardships and realities of slavery. - NBCBLK
High percentages of Nigerian ancestry in African Americans in the U.S. may be linked to the number of slaves who were transferred from the British Caribbean to the United States. This was backed up by historians who cited a “database on the intra-American slave trade, which made it clear that slaves had been brought from the Caribbean to the U.S.,” said Joanna Mountain, 23andMe’s senior director of research.
There could have been “internal developments within the African continent, which shaped the exportation” of slaves, Powers said. “Each one of these regions has its own political and economic, as well as climate history, and the variations could contribute to the exportation of people on the coast.” Mountain suggested that the high mortality rates may have contributed to reduced genetic representation of enslaved people from Senegambia, Angola, and the Democratic Republic of Congo in African Americans.
“Sex-biases is basically the ratio of African women that were reproducing to African men,” said Micheletti. “African women were reproducing way more than African men were. That's indicative of rape and exploitation that has been documented in diaries and other historical literature.”
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