Letter | Published:

Selection Intensity in Brazilian Caingang Indians

Naturevolume 199page514 (1963) | Download Citation

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Abstract

IT is becoming increasingly clear that if we wish to understand the biological evolution of man we must examine in detail the selective pressures and breeding structures of human populations which are in different stages of cultural development. Crow1 suggested a relatively simple method for measuring selection intensity in man. This communication describes the results obtained with Crow's method collected from among the Caingang Indians living in the State of Rio Grande do Sul, Brazil.

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References

  1. 1

    Crow, J. F., Human Biol., 30, 1 (1958).

  2. 2

    Salzano, F. M., Human Biol., 33, 110 (1961a).

  3. 3

    Salzano, F. M., Z. Morphol. u-Anthrop., 51, 536 (1961); Amer. J. Phys. Anthrop., 19, 391 (1961); Ann. Human Genet., 25, 123 (1961). Tondo, C. V., and Salzano, F. M., Science, 132, 1893 (1960). Salzano, F. M., Marcallo, F. A., Freire-Maia, N., and Krieger, H., Acta Genet., 12, 212 (1962). Salzano, F. M., and Sutton, H. E., ibid. (in the press).

  4. 4

    Spuhler, J. N., Proc. UN/WHO Seminar Use of Vital and Health Statistics for Genetic and Radiation Studies (United Nations, New York, 1962).

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Affiliations

  1. Departamento de Genética, Instituto de Ciências Naturais, Universidade do Rio Grande do Sul, Pôrto Alegre, Brazil

    • FRANCISCO M. SALZANO

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DOI

https://doi.org/10.1038/199514a0

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