Genetics
A 1995 study done on the population of Pinar del Río, found that 50% of the Mt-DNA lineages (female lineages) could be traced back to Europeans, 46% to Africans and 4% to Native Americans. This figure is consistent with both the historical background of the region, and the current demographics of it. But, being that Cubans range from Whites to Blacks to Mulattoes, these genetic findings are not assigned to one group. Therefore, the study does not suggest that Cubans in general are of mixed race, but rather may or may not be.
According to another study in 2008, the geographical origin attributed to each mtDNA haplogroup, 55% of the sequences found in Cubans are of West Eurasian origin (namely, Europe and the Middle East) and 45% of African origin Regarding Y-chromosome haplogroups (male lineages), 78.8% of the sequences found in Cubans are of West Eurasian origin, 19.7% of African origin and 1.5% of East Asian origin. Among the West Eurasian fraction, the vast majority of individuals belong to West European haplogroup R1b. The African lineages found in Cubans have a Western (haplogroups E1, E2, E1b1a ) and Northern (E1b1b-M81 ) African origin. The "Berber" haplogroup E1b1b1b (E-M81), is found at a frequency of 6.1%.
According to Fregel et al. (2009), the fact that autochthonous male E-M81 and female U6 lineages from the Canaries have been detected in Cuba and Iberoamerica, demonstrates that Canary Islanders with indigenous Guanche ancestors actively participated in the American colonization.
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