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Distribution of hereditary blood antigens among Indians in Middle America. VIII. In Panama

1965; Wiley; Volume: 23; Issue: 4 Linguagem: Inglês

10.1002/ajpa.1330230416

1096-8644

G. Albin Matson, Jane L. Swanson,

Forensic and Genetic Research

Abstract Blood specimens from 240 Guaymi, 388 San Blas Cuna, and 80 Chocò Indians of Panamá have been tested for the presence of antigens in the ABO, MNSs, P, Rh‐Hr, Lutheran, Kell‐Cellano, Lewis, Duffy and Kidd blood group systems and for the Diego (Di a ), Wright (Wr a ), and Berrens (Be a ) antigens. The incidences of their phenotypes and calculated frequencies of their genes are presented in appropriate tables, and the anthropological importance of these data has been discussed. All 708 blood samples tested were Group O. The frequency of the M gene is high in the Guaymí and San Blas Cuna ‐ as is usual for Indians ‐ but is sufficiently low (0.6313) in the Chocó to suspect racial admixture and/or inbreeding. Neither Miltenberger nor Verweyst antigens were observed. Frequency for the R 2 (cDE) chromosome is high in the San Blas Cuna and in the Chocó (0.2554 and 0.2851 respectively), but low in the Guaymí (0.1049). The predominantly Negro antigen V was not found in the Panamá Indians. The Chocó differs from the other two populations with respect to the incidence of Le (a+b−). 22.5% of the 80 Chocó bloods examined were agglutinated by Anti‐Le a but not by Anti‐Le b serum, whereas the Guaymí and San Blas Cuna specimens lacked the Le a antigen. Gene frequency for Jk a is lower (0.2364) in the Guaymí than usually occurs in Amerinds, but the distribution of frequencies for the Kidd gene in the San Blas Cuna and Chocó is similar to that observed in other tribes in Middle America. The Diego (Di a ) antigen was found in one of 240 Guaymí, in 24 of 317 San Blas Cuna, and in three of 80 Chocó.