May 27, 2004
Y chromosomes of Galicians
A reader alerts me to this study:
International Journal of Legal Medicine
Hierarchical analysis of 30 Y-chromosome SNPs in European populations.
M. Brion et al.
Analysis of Y-chromosome haplogroups defined by binary polymorphisms, has became a standard approach for studying the origin of modern human populations and for measuring the variability between them. Furthermore, the simplicity and population specificity of binary polymorphisms allows inferences to be drawn about the population origin of any male sample of interest for forensic purposes. From the 245 binary polymorphisms that can be analysed by PCR described in the Y Chromosome Consortium tree, we have selected 30 markers. The set of 30 has been grouped into 4 multiplexes in order to determine the most frequent haplogroups in Europe, using only 1 or 2 multiplexes. In this way, we avoid typing unnecessary SNPs to define the final haplogroup saving effort and cost, since we only need to type 9 SNPs in the best case and in the worst case, no more than 17 SNPs to define the haplogroup. The selected method for allele discrimination was a single base extension reaction using the SNaPshot multiplex kit. A total of 292 samples from 8 different districts of Galicia (northwest Spain) were analysed with this strategy. No significant differences were detected among the different districts, except for the population from Mariņa Lucense, which showed a distant haplogroup frequency but not higher Φst values.
Posted by Dienekes at May 27, 2004 11:54 PM | PermaLinkI am Galician. We are a Nation with a latin-derived language, the Galician, father of the portuguese language. In pre-roman times our language was a celtic one or not celtic but closed to the celtic family according to others authors. We share with the welsh, irish or basques high levels of the Atlantic Modal Haplotype and the haplogroup 1( R1b),i.e. we are predominantly paleolithic europeans. However, despite our geographical situation we share with the germans high levels of the haplogroup I, and the spanish, basques or iberians in general( our neighbors) have very low levels. It has a historical explanation: In the V century the Suevi cross the Rhine and established a Kingdom In Galiza ( http://www.kessler-web.co.uk/History/KingListsEurope/BarbarianSuevi.htm ) . Our traditional culture and the place names of our country reflect a strong germanic influence: Gondomar, Gunderedo, Marcosende, Gundim, Aralde, Urdilde, Guitiriz, Mondariz, Aldemunde...mainly in rural areas of the coast.
We are a autonomous country inside the Spanish state with our own Parliament and President, but we want to be free in Europe like the Basques or Scots.
Dienekes, I agree with your commentary " I should note that I*(xI1b2) might include... ", but I knew it and take it into account when I gave theses percentages. I excluded I1b* ( 0% in Galicians or basques), and I1b2( 6% in the Galician atlantic coast and in the basques, and 40% in Sardinians).
Congratulations for your page and your work. All the europeans are in debt with Plato, Heraclito, Pitagoras... and now Dienekes!