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Frequencias genicas dos sistemas ABO, MNSs e Rh em caucasóides e negróides da cidade de Campinas, SP (gene frequencies of the ABO, MNSs and Rh systems in caucasoids and blacks from the city of Campinas, SP)

Luís Edmundo Venturelli^I; Maria Helena Baena de Moraes^II

^IServiço de Hemoterapia e ^IIDepartamento de Enfermagem, Faculdade de Ciências Médicas, UNICAMP, 13100 Campinas, SP, Brasil. Enviar correspondência para M.H.B.M. ao seguinte endereço: Rua Conceição, 552, apto. 25, 13015 Campinas, SP, Brasil

ABSTRACT

The ABO, MNSs and Rh (including the D^u variant) blood group systems were studied in a sample of 1259 Brazilian recruits (941 Caucasoids and 318 Blacks) from Campinas, State of São Paulo, Brazil. The following gene frequencies were estimated for Caucasoids: A ₁ = 0.1808, A₂ = 0.0543, B = 0.0698, 0 = 0.6951; M = 0.5627, N = 0.4373; R° = 0.1094, R¹ = 0.4179, R² = 0.1515, R^z = 0.0052, r = 0.2975, r' = 0.0155, r" = 0.0030. Among Blacks these gene frequencies were as follows: A₁ = 0.1384, A ₂ = 0.0547, B = 0.0854, 0 = 0.7215; M = 0,5597, N = 0.4403; R° = 0.2781, R¹ = 0.2917, R² = 0.1523, R^z = 0.0049, r = 0.2676, r' = 0.0054. The frequency of the D^u gene was estimated to be 0.0063 among Caucasoids and 0.0055 among Blacks.

Keywords: gene frequencies; ABO; MNSs; Rh.

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