terça-feira, 2 de setembro de 2008

mapa genético da europa





Uma equipa de investigadores suíços e americanos concluiu, num estudo recentemente publicado, que apesar da população europeia ser geneticamente muito semelhante, é possível saber a origem de um europeu através da análise do seu ADN, com uma margem de erro de apenas algumas centenas de quilómetros. Os mapas genético e geopolítico da Europa encaixam um no outro.

«Overall, our study showed that the autosomal gene pool in
Europe is comparatively homogeneous but at the same time
revealed that the small genetic differentiation that is present
between subpopulations is characterized by a significant
correlation between genetic and geographic distance. Furthermore,
the qualitative nature of these results is in close agreement
with expectations based on human migration history in
Europe. The major prehistoric waves of human migration in
Europe followed south and southeastern to north and northwestern
directions [1], including the first Paleolithic settlement
of the continent by anatomically modern humans [18], most of
the postglacial resettlement during the Mesolithic [19], and the
farming-related population expansion during the Neolithic [18,
20]. Thus, both the level and the change in neutral autosomal
variation in Europe can be expected to roughly follow southernto-
northern gradients as we observed, with the possible exception
of population isolates as observed for the Finns.»

via Dieneke's Anthropology Blog

1 comentário:

Anónimo disse...

Muito interessante. Estamos misturados um pouco com os espanhóis...