Ceratophrys dorsata Wied

Horned frog
  • Maria Luiza Beçak
  • Willy Beçak
  • Franklin L. Roberts
  • Robert N. Shoffner
  • E. Peter Volpe
  • Kurt Benirschke
  • T. C. Hsu

Abstract

Chromosomes of one group are characterized by an achromatic gap adjacent to the centromere; chromosomes of another group show a satellite at the distal end of one arm. This species is octoploid, having evolved apparently by polyploidization from an ancestral diploid of 2n = 26.

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References

  1. 1.
    Beak, M. L., Becak, W., and Rabello, M. N.: Further studies on polyploid amphibians Ceratophrydidae. Chromosoma Berl. 22: 192–201, 1967.CrossRefGoogle Scholar
  2. 2.
    Becak, M. L.: Cariótipos e evolucão cromossômica em Amphibia-Anura. Ph.D. Thesis, University of São Paulo, 120 pp., 1967.Google Scholar

Copyright information

© Springer Science+Business Media New York 1971

Authors and Affiliations

  • Maria Luiza Beçak
    • 1
  • Willy Beçak
    • 1
  • Franklin L. Roberts
    • 2
  • Robert N. Shoffner
    • 3
  • E. Peter Volpe
    • 4
  • Kurt Benirschke
    • 5
  • T. C. Hsu
    • 6
  1. 1.Serviço De GenéticaInstituto ButantanSão PauloBrazil
  2. 2.Department of ZoologyUniversity of MaineOronoUSA
  3. 3.Department of Animal ScienceUniversity of MinnesotaSt. PaulUSA
  4. 4.Department of BiologyTulane UniversityNew OrleansUSA
  5. 5.Department of Obstetrics & Gynecology, School of MedicineUniversity of CaliforniaSan Diego,La JollaUSA
  6. 6.Section of Cell BiologyM.D. Anderson HospitalHoustonUSA

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