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Iberia holds the most ancient European ancestry
Despite the differences, all Europeans are closely related
The Paleolithic and Neolithic basis of modern Iberian ancestry
A 2007 European-wide study including Spanish Basques and Valencian Spaniards, found Iberian populations to cluster the furthest from other continental groups, implying that Iberia holds the most ancient European ancestry. In this study, the most prominent genetic stratification in Europe was found to run from the north to the south-east, while another important axis of differentiation runs east-west across the continent. It also found, despite the differences, that all Europeans are closely related.
Previous Y-chromosome and mtDNA analysis already pointed to Paleolithic ancestry among populations in the Iberian Peninsula. Although this methodology does not provide strong inferences on genetic population structure, it is useful in tracing parts of the routes of migration in the populating of Europe. Both Y-chromosome haplogroups R1b and Mtdna haplogroup H, reach frequencies above 60% in most of Iberia, R1b peaking at 90% in the Basque region.
This shows an ancestral bond between Iberia and the rest of western Europe, and in particular with Atlantic Europe, which share high frequencies of these haplogroups. Y-chromosome and mtDNA analysis seems to support the theory according to which founder populations in northern Iberia colonized the rest of western Europe at the end of the last glaciation.
In fact, according to one article, the main components in the European genomes appear to derive from ancestors whose features were similar to those of modern Basques and Near Easterners, with average values greater than 35% for both these parental populations, regardless of whether or not molecular information is taken into account. The lowest degree of both Basque and Near Eastern admixture is found in Finland, whereas the highest values are, respectively, 70% in Spain and more than 60% in the Balkans.
Autosomal studies using a small number of classical genetic markers, supported by more recent analysis of Microsatellite data, have lent support for a large Neolithic element in the European genome, supporting the demic diffusion model from the ancient Near East. This Neolithic component has also been detected at substantial levels in Spain, but at greatly reduced levels to those detected in other European countries to the north and east.
Broad gradients across Europe, largely on South East/North West cline using a small number of classical genetic markers would thus link the populations of Western Europe (including Iberia) by a common "paleolithic" ancestry and those of eastern (and particularly south eastern) Europe by a common "neolithic" ancestry. Nevertheless the demic diffusion model remains controversial, to the degree that studies of ancient Mtdna have been interpreted as pointing to the absence of a Neolithic contribution in modern European populations.
This page was made using the Information of the Wikipedia Encyclopedia :
Spanish People - The Paleolithic and Neolithic basis of modern Iberian ancestry
.
Iberia holds the most ancient European ancestry
Despite the differences, all Europeans are closely related
The Paleolithic and Neolithic basis of modern Iberian ancestry
A 2007 European-wide study including Spanish Basques and Valencian Spaniards, found Iberian populations to cluster the furthest from other continental groups, implying that Iberia holds the most ancient European ancestry. In this study, the most prominent genetic stratification in Europe was found to run from the north to the south-east, while another important axis of differentiation runs east-west across the continent. It also found, despite the differences, that all Europeans are closely related.
Previous Y-chromosome and mtDNA analysis already pointed to Paleolithic ancestry among populations in the Iberian Peninsula. Although this methodology does not provide strong inferences on genetic population structure, it is useful in tracing parts of the routes of migration in the populating of Europe. Both Y-chromosome haplogroups R1b and Mtdna haplogroup H, reach frequencies above 60% in most of Iberia, R1b peaking at 90% in the Basque region.
This shows an ancestral bond between Iberia and the rest of western Europe, and in particular with Atlantic Europe, which share high frequencies of these haplogroups. Y-chromosome and mtDNA analysis seems to support the theory according to which founder populations in northern Iberia colonized the rest of western Europe at the end of the last glaciation.
In fact, according to one article, the main components in the European genomes appear to derive from ancestors whose features were similar to those of modern Basques and Near Easterners, with average values greater than 35% for both these parental populations, regardless of whether or not molecular information is taken into account. The lowest degree of both Basque and Near Eastern admixture is found in Finland, whereas the highest values are, respectively, 70% in Spain and more than 60% in the Balkans.
Autosomal studies using a small number of classical genetic markers, supported by more recent analysis of Microsatellite data, have lent support for a large Neolithic element in the European genome, supporting the demic diffusion model from the ancient Near East. This Neolithic component has also been detected at substantial levels in Spain, but at greatly reduced levels to those detected in other European countries to the north and east.
Broad gradients across Europe, largely on South East/North West cline using a small number of classical genetic markers would thus link the populations of Western Europe (including Iberia) by a common "paleolithic" ancestry and those of eastern (and particularly south eastern) Europe by a common "neolithic" ancestry. Nevertheless the demic diffusion model remains controversial, to the degree that studies of ancient Mtdna have been interpreted as pointing to the absence of a Neolithic contribution in modern European populations.
This page was made using the Information of the Wikipedia Encyclopedia :
Spanish People - The Paleolithic and Neolithic basis of modern Iberian ancestry
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Interesting stuff there Vincente. Good read. Throw in the African influence from the Moors and the indigneous influence,originating from Asia, and many Mexicans could be the people of the world.
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