R.R. Race

Data for X-mapping calculations, Israeli families tested for Xg, g-6-pd and for colour vision

The results are recorded of tests for the X‐linked red cell antigen Xga on families with glucose‐6‐phosphate dehydrogenase deficient members. The families live in Israel and belong to Kurdish, Iraqi, Yemenite, Sefardic and Ashkenazy Communities.

Linkage relations of X‐borne ichthyosis to the Xg blood groups and to other markers of the X in Israelis

A series of families in the counties around Oxford (Kerr, Wells & Sanger, 1964) gave the first indication that there was reasonably close linkage between the Xg blood groups and the X-borne type of ichthyosis. This stimulated the investigation in Israel of which the present paper gives the full account (it includes the data of an interim report by Adam et al. 1966). The Oxford findings also stimulated a survey based on London (Wells et al. 1966). These three publications established beyond any doubt that the locus for Xg is close to that for ichthyosis. The survey in Israel included tests for glucose-6-phosphate dehydrogenase (g-6-pd) aa well as for colour vision.

Glucose-6-phosphate dehydrogenase, colour vision and Xg blood groups in Greece: linkage and population data

1. The same recombination frequency (26 %) between the loci for G‐6‐PD and Xg was found in Greek populations as had been found in Israelis. Prof. Siniscalcos data from Sardinia do not agree with this frequency.