A genome-wide genetic signature of Jewish ancestry perfectly separates individuals with and without full Jewish ancestry in a large random sample of European Americans

Table 1 Subjects that did not score within the PC1 range expected for their self-declared Jewish ancestry group

Jewish grandparents	Expected score on PC1	Actual score on PC1	Maternal GM	Maternal GF	Paternal GM	Paternal GF
4	0.09-0.12	0.07	UK*	Unknown*	USA*	USA*
		0.06	E. Europe	E. Europe	Unknown	Unknown
2	0.03-0.08	0.11	USA	USA	USA	USA
		-0.02	UK^†	UK^†	Russia^†	Russia^†
0	<0.03	0.054	Italy	Italy	USA	USA
		0.049	E. Med.	E. Med.	USA	E. Med.
		0.048	USA	USA	Unknown	Unknown
		0.045	E. Med.^‡	E. Med.^‡	E. Med.^‡	E. Med.^‡
		0.045	USA	USA	Italy	Italy
		0.049	E. Med.	USA	USA	USA
		0.043	W. Europe^§	W. Europe^§	W. Europe^§	W. Europe^§
		0.041	Unknown	Scandinavia	W. Europe	W. Europe
		0.038	USA	USA	USA	USA
		0.032	USA	USA	USA	USA
		0.032	Italy	Italy	Italy	Italy

*Two of the grandparents are Sephardic Jews rather than Ashkenazi.^†Country of origin is USA; UK/Russia indicates ancestry. ^‡Specific countries not listed to prevent identification of subject, here Eastern Mediterranean indicates either Cyprus, Albania, Lebanon or Turkey; ^§No further details known. E., east; Med. Mediterranean; W., west.

ISSN: 1474-760X