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The Iberian results are particularly interesting, showing the power of this approach compared to the one with unlinked data. There appear to be:
a Spanish Basque (#6),
French Basque (#11) cluster, as well as
a Portuguese/Galician/Castilla Y Leon (#9) cluster, and
a complementary Castilla La Manch/Cantabria/Andalucia/Murcia (#7) cluster, and
a smaller Aragon/Cataluna cluster (#8).
There is overlap between these clusters, but the geographical contrasts are quite evident. I did not go through the results of Spanish Project participants (all the Portuguese fall in the Galician cluster, and our Basque member in the Basque cluster as expeccted), so it would be interesting to hear whether they fall in the cluster(s) which exist in their regions of origin.