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.

Need et al. Genome Biology 2009 10:R7   doi:10.1186/gb-2009-10-1-r7