Israeli researchers: Group of Colorado Indians have genetic Jewish roots
Sheba Medical Center geneticists find common genetic mutation, often called the 'Ashkenazi mutation,' associated with an increased risk of developing breast and ovarian cancer.
Sheba Medical Center geneticists have found that a population of Indians in the U.S. state of Colorado has genetic Jewish roots going back to the expulsion of Jews from Spain.
The common marker was a unique genetic mutation on the BRCA1 gene. This mutation, commonly known as the "Ashkenazi mutation," is found in Jews of Ashkenazi origin and is associated with an increased risk of developing breast and ovarian cancer.
The trail began with research conducted by Prof. Jeffrey Weitzel, an oncogenetic (cancer genetics) expert at the City of Hope Hospital in California. Weitzel examined samples from 110 American families of Hispanic origin, and followed them through a computational genetics study, and in 2005 published an article pointing to their common ancestry: People who had immigrated to the United States from Mexico and South America.