The linkage relation of Xg to g‐6‐pd in Israelis: the evidence of a second series of families

The loci for Xg and for glucose‐6‐phosphate dehydrogenase are not within direct measurable distance of each other. Analysis of two‐generation data for a previous series of Israeli families strongly suggested that linkage was measurable, but massive three‐generation data from Sardinia contradicted this and stimulated the collection of a second series in Israel, this time confined mostly to three‐generation families. The two Israeli series combined now agree with the Sardinian series in showing no evidence of direct measurable linkage.