Conservation of the Original Z-Chromosome by Diverse Avian Species and Homology of the Z-linked Genes

  • Susumu Ohno
Part of the Monographs on Endocrinology book series (ENDOCRINOLOGY, volume 1)


As stated in Chapter 3, the class Aves as a whole and the reptilian order Squamata appear to belong to the same genome lineage. Together they constitute one uniform group with the similar DNA value. The common characteristic shared by birds, snakes, and lizards is the possession of microchromosomes. Furthermore, it has been shown that the female heterogamety of the ZZ/ZW-type operates in snakes as well as in birds. Cytological evidence presented below suggests that the Z-chromosome of this genome lineage is very ancient in its origin. It appears that the same primitive Z has persisted in its entirety not only in diverse avian species, but also in diverse ophidian species of today.


Japanese Quail Melanin Granule Domestic Duck Cytological Evidence Muscovy Duck 
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  1. Bateson, W.: Mendel’s principles of heredity. Cambridge ( England ): University Press 1913.Google Scholar
  2. Beçak, W., M. L. Beçak, H. R. S. Nazareth, and S. Ohno: Close karyological kinship between the reptilian suborder Serpentes and the class Ayes. Chromosoma (Berl.) 15, 606–617 (1964).CrossRefGoogle Scholar
  3. Duncker, H.: Genetik der Kanarienvögel. Bibliographia genetica 9, 37–140 (1928).Google Scholar
  4. Hutt, F. B., and C. D. Mueller: Sex-linked albinism in the turkey, Meleagris gallopavo. J. Hered. 33, 69–77 (1942).Google Scholar
  5. Hutt, F. B., and C. D. Mueller: Genetics of the fowl. New York: McGraw-Hill 1949.Google Scholar
  6. Jerome, F. N.: Color inheritance in geese and its application to goose breeding. Poultry Sci. 32, 159–165 (1953).CrossRefGoogle Scholar
  7. Lauber, J. K.: Sex-linked albinism in the Japanese quail. Science 146, 948–950 (1964).PubMedCrossRefGoogle Scholar
  8. Levi, W. M.: The pigeon. Sex-linkage in pp. 243–249. Columbia, S. C.: The R. L. Bryan Comp. 1951.Google Scholar
  9. Lyon, M. F.: A further mutation of the mottled type in the house mouse. J. Hered. 51, 116–121 (1960).Google Scholar
  10. 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).CrossRefGoogle Scholar
  11. Steiner, H.: Vererbungsstudien am Wellensittich Melopsittacus undulatus. Arch. Klaus-Stift. Vererb.-L. 7, 37–202 (1932).Google Scholar
  12. Van Brink, J. M.: L’expression morphologique de la Digamétie chez les Sauropsidés et les Monotrèmes. Chromosoma 10, 1–72 (1959).CrossRefGoogle Scholar
  13. Yamashina, Y.: Studies on sterility in hybrid birds. III. Cytological investigations of the intergeneric hybrid of the Muscovy duck (Cairina moschata) and the domestic duck (Anas platyrhyncha var. domestica). Japan. J. Genetics 18, 231–253 (1941).CrossRefGoogle Scholar
  14. Yamashina, Y.: Studies on the chromosomes in twenty-five species of birds. Genetics 2, 27–38 (1951).Google Scholar
  15. Ziprkowski, L., A. Krakowski, A. Adams, H. Costeff, and J. Sade: Partial albinism and deaf-mutism due to a recessive sex-linked gene. Arch. Dermat. 86, 530–539 (1962).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin · Heidelberg 1966

Authors and Affiliations

  • Susumu Ohno
    • 1
  1. 1.Department of BiologyCity of Hope MedicalDuarteUSA

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