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Passeriformes

  • Kurt Benirschke
  • T. C. Hsu
  • Maria Luiza Beçak
  • Willy Beçak
  • T. R. Chen
  • Robert N. Shoffner

Abstract

These karyograms were prepared by Dr. G.F. Shields, Department of Botany and Zoology, University of Toronto, Toronto, Ontario. The materials for the karyotypes were prepared from primary tissue cultures of kidney cells obtained by G.F. Shields. These birds were live-trapped at various locations in the province of Ontario. This species, as do various other species of Junco, possesses chromosomal polymorphisms: one involving chromosome number 2 and another involving chromosome number 5 (Shields, 1973) . These polymorphisms are shown in the male; however, the female has the standard karyotype.

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References

  1. 1).
    Shields, G.F.: Chromosomal polymorphism common to several species of Junco (Aves). Can. J. Gen. Cytol. 15.: 461–471, 1973.Google Scholar
  2. 1).
    Thorneycroft, H.B.: Chromosomal polymorphism in the white-throated sparrow, Zonotrichia albicollis (Gmelin). Science 154:1571–1572, 1966.PubMedCrossRefGoogle Scholar
  3. 2).
    Thorneycroft, H.B.: A cytogenetic study of the white-throated sparrow, Zonotrichia albicollis (Gmelin). Ph.D. thesis, Univ. of Toronto, 1968.Google Scholar
  4. 1).
    Ohno, S., C. Stenius, L.C. Christian, W. Beçak and M.L. Beçak: Chromosomal uniformity in the avian subclass Carinatae. Chromosoma (Berl.) 15:280–288, 1964.Google Scholar

Copyright information

© Springer Science+Business Media New York 1975

Authors and Affiliations

  • Kurt Benirschke
    • 1
  • T. C. Hsu
    • 2
  • Maria Luiza Beçak
    • 3
  • Willy Beçak
    • 3
  • T. R. Chen
    • 4
  • Robert N. Shoffner
    • 5
  1. 1.San Diego ZooSan DiegoUSA
  2. 2.Section of Cell BiologyM. D. Anderson HospitalHoustonUSA
  3. 3.Servico De GeneticaInstituto ButantanSao PauloBrazil
  4. 4.M. D. Anderson Hospital and Tumor InstituteTexas Medical CenterHoustonUSA
  5. 5.Department of Animal ScienceUniversity of MinnesotaSt. PaulUSA

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