vendredi 5 décembre 2008

DNA study shows 20 percent of Iberian population has Jewish ancestry

Spain and Portugal have a history of fervent Catholicism, but almost a third of the population now turns out to have a non-Christian genetic heritage. About 20 percent of the current population of the Iberian Peninsula has Sephardic Jewish ancestry, and 11 percent bear Moorish DNA signatures, a team of geneticists reports.

The genetic signatures reflect the forced conversions to Christianity in the 14th and 15th centuries after Christian armies wrested Spain back from Muslim control.

The new finding bears on two very different views of Spanish history: One holds that Spanish civilization is Catholic and all other influences are foreign, the other that Spain has been enriched by drawing from all three of its historical cultures - Catholic, Jewish and Muslim.

The genetic study, based on an analysis of Y chromosomes, was conducted by a team of biologists led by Mark Jobling of the University of Leicester in England and Francesc Calafell of the Pompeu Fabra University in Barcelona.

The biologists developed a Y chromosome signature for Sephardic men by studying Sephardic Jewish communities in places where Jews migrated after being expelled from Spain in the years from 1492 to 1496.

They also characterized the Y chromosomes of the Arab and Berber army that invaded Spain in 711 A.D. from data on people now living in Morocco and Western Sahara.

After a period of forbearance under the Arab Umayyad dynasty, Spain entered a long period of religious intolerance, with its Muslim Berber dynasties forcing both Christians and Jews to convert to Islam, and the victorious Christians then expelling Jews and Muslims or forcing both to convert.

The genetic study, reported online Thursday in the American Journal of Human Genetics, indicates there was a high level of conversion among Jews.

Jonathan Ray, a professor of Jewish studies at Georgetown University, said that a high proportion of people with Sephardic ancestry was to be expected.

"Jews formed a very large part of the urban population up until the great conversions," he said.

The genetic analysis is "very compelling," said Jane Gerber, an expert on Sephardic history at the City University of New York, and weighs against scholars who have argued that there were very few Jewish conversions to Christianity.

Ray raised the question of what the DNA evidence might mean on a personal level. "If four generations on, I have no knowledge of my genetic past," Ray said, "how does that affect my understanding of my own religious association?"

The issue is one that has confronted Calafell, an author of the study. His own Y chromosome is probably of Sephardic ancestry - the test is not definitive for individuals - and his surname is from a town in Catalonia; Jews undergoing conversion often took surnames from place names.

Jews first settled in Spain during the early years of the Roman empire. Sephardic Jews bear that name because the Hebrew word for Spain is Sepharad.

http://www.iht.com/articles/2008/12/04/europe/gene.php

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Hispanics Uncovering Roots as Inquisition's 'Hidden' Jews 




HOUSTON, Oct. 28 - When she was growing up in a small town in southern Colorado, an area where her ancestors settled centuries ago when it was on the fringes of the northern frontier of New Spain, Bernadette Gonzalez always thought some of the stories about her family were unusual, if not bizarre.
Her grandmother, for instance, refused to travel on Saturday and would use a specific porcelain basin to drain blood out of meat before she cooked it. In one tale that particularly puzzled Ms. Gonzalez, 52, her grandfather called for a Jewish doctor to circumcise him while he was on his death bed in a hospital in Trinidad, Colo.
Only after Ms. Gonzalez moved to Houston to work as a lawyer and began discussing these tales with a Jewish colleague, she said, did "the pieces of the puzzle" start falling into place.
Ms. Gonzalez started researching her family history and concluded that her ancestors were Marranos, or Sephardic Jews, who had fled the Inquisition in Spain and in Mexico more than four centuries ago. Though raised in the Roman Catholic faith, Ms. Gonzalez felt a need to reconnect to her Jewish roots, so she converted to Judaism three years ago.
"I feel like I came home," said Ms. Gonzalez, who now often uses the first name Batya. "The fingerprints of my past were all around me, but I didn't know what they meant."
It is difficult to know precisely how many Hispanics are converting or adopting Jewish religious practices, but accounts of such embraces of Judaism are growing more common in parts of the Southwest. In Clear Lake, a suburb south of Houston, Rabbi Stuart Federow has overseen half a dozen conversions of Hispanics in recent years. In El Paso, Rabbi Stephen Leon said he had converted almost 40 Hispanic families since moving to Texas from New Jersey 19 years ago.
These conversions are the latest chapter in the story of the crypto-Jews, or hidden Jews, of the southwestern United States and northern Mexico, who are thought to be descended from the Sephardic Jews who began fleeing Spain more than 500 years ago. The story is being bolstered by recent historical research and advances in DNA testing that are said to reveal a prominent role played by crypto-Jews and their descendants in Spain's colonization of the Southwest.

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http://www.nytimes.com/2005/10/29/national/29religion.html?_r=0

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