The publication of the maps showing the world distribution of ABO, MN, and Rh genes by Mourant in his recent book ('54) is an event of considerable importance to geneticists and anthropologists. These maps are based on the analysis of an enormous mass of information, but future research will quite probably amend, to a certain extent, the picture of the distribution of these genes as it emerges from the analysis of data now available. The present paper suggests some adjustments to the map of the distribution of the genes ABO in eastern Europe, the region where the author carried out his own research and with which he is fairly well acquainted. No attempt is made here to analyse critically the distribution of genes ABO in western Europe.
Geme A
- Romcvnin. Investigations by S . Manuila ( '24a, '24b) . Manuila ( '43, '45), Popoviciu ( '28), Ramneantu and Lustrea ('42), and others, have shown that the frequency of gene A is not higher in the provinccs of Banat, south-western Transylvania and Vallachia than in the rest of the country. The provinces of Dobroudja and southern Bessarabia, included by Mourant in the zone 30-3576, a frequency unusually high in eastern Europe, have not yet been investigated. Micu and Micu, and Necrasov ( '41a, '41b) have shown that the highest frequency is to be found in the province of Bucovina in the 577