The native inhabitants of the Canary Islands possess a gene pool that is predominantly European, with specific contributions from
Andalusians, Castilians,
Galicians, and
Portuguese, as well as from
Normans,
Genoese, and
Flemings, alongside a variable input from the native
Guanche population. Guanche genetic markers have also been found recently in Puerto Rico and, at low frequencies, in
peninsular Spain after later emigration from the Canary Islands.
Population genetics 1972
Uniparental markers The most frequent (maternal-descent)
mtDNA haplogroup in Canary Islands is
H (37.6%), followed by
U6 (14.0%),
T (12.7%), not-U6
U (10.3%) and
J (7.0%). Two haplogroups, H and U6, alone account for more than 50% of the individuals. Significant frequencies of sub-Saharan maternal
L haplogroups (6.6%) is also consistent with the historical records on introduction of sub-Saharan female slave labour in Canary Islands. However, some Sub-Saharan female lineages are also found in North African populations, and as a result, some of these L lineages could have been introduced to the Islands from North Africa. A 2009 study of DNA extracted from the remains of aboriginal inhabitants found that 7% of lineages were haplogroup L, which leaves open the possibility that these L lineages were part of the founding population of the Canary Islands. Sub-Saharan female lineages have been found in frequencies of 10% or more in some islands. A 2003 genetics research article by Nicole Maca-Meyer
et al. published in the
European Journal of Human Genetics compared aboriginal Guanche mtDNA (collected from Canarian archaeological sites) to that of today's Canarians and concluded that "despite the continuous changes suffered by the population (Spanish colonization, slave trade), aboriginal mtDNA lineages constitute a considerable proportion [42–73%] of the Canarian gene pool". According to this article, both percentages are obtained using two different estimation methods; nevertheless according to the same study the percentage that could be more reliable is the one of 73%. of
El Hierro by Leonardo Torriani, 1592 Although the Berbers are the most probable ancestors of the Guanches, it is deduced that important human movements (e.g., the
Islamic-Arabic conquest of the Berbers) have reshaped Northwest Africa after the migratory wave to the Canary Islands and the "results support, from a maternal perspective, the supposition that since the end of the 16th century, at least, two-thirds of the Canarian population had an indigenous substrate, as was previously inferred from historical and anthropological data". mtDNA haplogroup U subclade
U6b1 is Canarian-specific. , 1828
Y-DNA, or Y-chromosomal, (direct paternal) lineages were not analysed in this study; however, an earlier study giving the aboriginal y-DNA contribution at 6% was cited by Maca-Meyer
et al., but the results were criticized as possibly flawed due to the widespread phylogeography of y-DNA haplogroup
E1b1b1b, which may skew determination of the aboriginality versus coloniality of contemporary y-DNA lineages in the Canaries. Regardless, Maca-Meyer
et al. state that historical evidence does support the explanation of "strong sexual asymmetry...as a result of a strong bias favoring matings between European males and aboriginal females, and to the important aboriginal male mortality during the Conquest". Indeed, according to a recent study by Fregel
et al. 2009, in spite of the geographic nearness between the Canary Islands and
Morocco the genetic ancestry of the Canary islands males is mainly of European origin. Nearly 67% of the haplogroups resulting from are Euro–Eurasian (
R1a (2.76%),
R1b (50.62%),
J (14%),
I (9.66%) and
G (3.99%)). Unsurprisingly the Castillian conquest brought the genetic base of the current male population of the Canary Islands. Nevertheless, the second most important haplogroup origin is Northern Africa.
E1b1b (14% including 8.30% of the typical
berber haplogroup E-M81),
E1b1a and E1a (1.50%), and
T (3%) haplogroups are present at a rate of 33%. According to the same study, the presence of autochthonous North African E-M81 lineages, and also other relatively abundant markers (E-M78 and J-M267) from the same region in the indigenous Guanche population, "strongly points to that area [North Africa] as the most probable origin of the Guanche ancestors". In this study, Fregel
et al. estimated that, based on Y-chromosome and mtDNA haplogroup frequencies, the relative female and male indigenous Guanche contributions to the present-day Canary Islands populations were respectively of 41.8% and 16.1%. of individual genomic admixture proportions in Canary Islanders by Guillen-Guio
et al. 2018. According to the authors "the proportion of SSA ancestry we observed in Canary Islanders likely originated in the postconquest importation of enslaved African people.". This study reported the below Genomic Ancestry Proportions in Canary Islanders. Source:
Genomic Ancestry Proportions (from ADMIXTURE, K-4) in Canary Islanders (Guillen-Guio
et al. 2018)
Ancient Canarians The
Guanches are related to the indigenous Berbers. In 2017, the first genome-wide data from the Guanches confirmed a North African origin and that they were genetically most similar to ancient North African Berber peoples of the nearby North African mainland. It also showed that modern inhabitants of Gran Canaria carry an estimated 16%–31% Guanche autosomal ancestry. ==Culture==