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Chromosoma

, Volume 21, Issue 2, pp 189–197 | Cite as

Caryotypes de Rana temporaria (L.) et de Rana dalmatina (Bonaparte)

  • Catherine Guillemin
Article

Abstract

The karyotype of Rana temporaria is analysed from preparations of squashed tadpole epidermis, the karyotype of Rana dalmatina from preparations of squashed larval epidermis and adult tissues. For each of these two species, the 26 chromosomes of the karyotype have been divided in two groups according to their length. Inside these two groups, three morphological criteria — relative length, arm-ratio and presence of secondary constriction — permit the identification of each of the component parts. For Rana dalmatina, the analysis of the two meiotic divisions shows that the classification remains possible in two groups. There is no evidence of an heteromorphic pair of chromosomes in these two species. The studies on Rana temporaria and Rana dalmatina are compared to recent ones on other Ranidae.

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Copyright information

© Springer-Verlag 1967

Authors and Affiliations

  • Catherine Guillemin
    • 1
  1. 1.Faculté des Sciences de ParisLaboratoire d'EmbryologieFrance

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