I limiti scientifici della ricerca sono ben evidenziati qui: https://www.ibsafoundation.org/it/blog/test-del-dna-cosa-ci-dicono-davvero-sui-nostri-antenati
Tuttavia i risultati sono comunque sorprendenti e affascinanti. Ovviamente solo una parte del mio DNA è proveniente dai Riva (e dalla miriade di altri cognomi confluiti nel loro DNA) ma in qualche modo mi aiuta la differenza somatica. I Teruzzi sono tutti mori con capelli e occhi scuri. Molti Riva sono invece biondi o anche rossicci, sovente con occhi verdi, grigi o azzurri.
A conferma della impossibilità (almeno per ora) di avere dati inoppugnabili riporto qui una mappa più recente (17-10-2024) che modifica di parecchio i dati della mappatura di parecchi anni fa. Mi sembra che questi ultimi risultati siano anche più plausibili dei precedenti:
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e qui la vecchia mappatura (3-4-2017) che a questo punto dovrebbe essere superata:
Ebbene sì.
Questa è la spiega della ricerca:
Stima della etinicità
In ogni regione del mondo, v'è un insieme di
caratteristiche genetiche che sono condivise dai discendenti delle popolazioni
autoctone. Questo ci permette di stabilire un modello genetico per ogni regione
del mondo.
Quando arrivano i dati del vostro DNA li confrontiamo
con ciascuno di questi modelli per scoprire quanta parte del vostro DNA viene
da ciascuna regione. Nella vostra “Stima di etnicità!” vi mostriamo tutte le
regioni da cui provengono i vostri antenati. Sarete in grado di vedere la
percentuale di DNA che deriva da ciascuna di queste regioni. Più alta è la
percentuale, più è probabile che i dati siano corretti.
Ovviamente queste,per quanto frutto di un algoritmo
statistico estremamente preciso, rimangono delle stime, dal momento che parecchie popolazioni del globo mostrano DNA simili, a
causa della vicinanza e della mescolanza dei diversi gruppi etnici.
E QUESTI I RISULTATI
Europe
100,0%
-----------------
South Europe
87,9%
-----------------
Italian
52,8%
-----------------
Iberian
22,2%
-----------------
Sardinian
12,9%
---------------------------
North and West Europe
9,0%
Scandinavian
9,0%
--------------------------
Ashkenazi Jewish
3,1%
paolo teruzzi
100,0%
52,8%
Italian
The
culture and genetic legacy of Italians were shaped by the Roman Empire
as well as contact with northern Europe and the eastern Mediterranean.
Italian exploration 500 years ago and subsequent emigration have
resulted in a large Italian presence in South and North America (U.S.,
Brazil, Argentina and others), neighboring European countries (Germany
and Switzerland), as well as in Australia and southern Africa. The
European Renaissance — a period of tremendous artistic and scientific
innovation during the 14th–17th centuries — began in Italy and was most
famously embodied by the Italian polymath Leonardo da Vinci. For many
Italians, cuisine is one of the most important elements of Italian
culture. The average Italian family consumes over 30 kilograms of pasta a
year.
22,2%
Iberian
The
region of Iberia, which encompasses Spain and Portugal, has been
historically shaped by multiple civilizations and distinct populations
starting with the ancient Iberian tribes to modern-day Spanish and
Portuguese people. In 1492 Jews were expelled from the region, and
Christopher Columbus set sail for the Americas, kicking off the age of
exploration and conquest in the New World. Iberian explorers spread
across the Americas, parts of Africa, and the Indian sub-continent,
leaving their genetic mark on these areas. Modern surgery was pioneered
in Spain during the Golden Age of Islamic Iberia, around 1000 CE.
12,9%
Sardinian
The
people, language, and culture of Sardinia are distinct from those of
neighboring regions; Sardinians preserve an ancient Neolithic European
genetic legacy thanks to the relative isolation of the population.
Communities of people of Sardinian descent are present in other parts of
Europe, including mainland Italy, Germany, and the U.K., and people of
Sardinian descent can also be found in Brazil, Argentina, and North
Africa. Sardinian culture is distinguished by its colorful traditional
clothing, which varies from village to village throughout the island.
9%
Scandinavian
Scandinavia
is a region of Northern Europe that includes Sweden, Norway, and
Denmark. Scandinavian people share a common North Germanic heritage.
Germanic tribes of antiquity traveled south to continental Europe along
trade, fishing, and conquest routes, eventually colliding with the
Romans. Migration from Scandinavia to other parts of Europe began
centuries ago, while in the late 19th century millions of Scandinavians
emigrated to the Americas. Scandinavian cultural influence is readily
apparent in the Midwestern United States, where many locals bear
Scandinavian surnames and pass family recipes for Scandinavian foods —
like lefse flatbread — from generation to generation. Ancient Norse
mythology has also entered into regular English lexicon; some of the
days of the week in English are named after ancient Norse gods.
3,1%
Ashkenazi Jewish
The
Ashkenazim are a European Jewish diaspora who trace their communal
origins to Germany and France, and later to the eastward migration
towards Poland and the Slavic countries. Because of traditional marriage
practices and segregation from surrounding cultures, the Ashkenazi
Jewish population is genetically very closely knit. Due to persecution,
genocides, and the devastation of the Holocaust, Ashkenazi Jews have
migrated across the world, with the largest populations in the U.S. and
Israel, and significant populations across the Americas, the Former
Soviet Union, and in South Africa and Australia. Jewish culture
emphasizes learning, which might explain why — while Jews represent only
0.2% of the world population — about a quarter of all Nobel Prize
winners have been Jewish.
VEDI ANCHE:
Ethnicity Estimate - teruzzi Web Site - MyHeritage
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