DNA Replication in the Spermatogonial Cells of Gryllotalpa Fossor and Schistocerca Gregaria

  • S. N. Ghosh
  • M. Bhattacharya
  • S. R. V. Rao
Research Article


DNA replication in the spermatogonial cells of Schistocerca gregaria and Gryllotalpa fossor has been analysed. This study has demonstrated the presence of at least two discrete populations of spermatogonial cells in both the insects with different intermitotic timings. The replication pattern of the sex chromosome in Schistocerca seems to be dependent on the pycnosity status, whereas, in Gryllotalpa, it is independent of the condensation pattern.

Key Words

DNA replication Orthoptera spermatogonial cells two populations X-chromosome 


La reproduction … a été analysée cette étude a dé montré’ la présence spermatogoniales chez les deux insectes des intervalles de temps différents.

Le mode de reproduction des chromosomes sexules chez le Schistocerca semble dépendre de la pyconosité’, allors que chez le Gryllotalpa. Il est indépendant du mode de condensation.


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Copyright information

© ICIPE 1987

Authors and Affiliations

  • S. N. Ghosh
    • 1
  • M. Bhattacharya
    • 1
  • S. R. V. Rao
    • 1
  1. 1.Department of ZoologyUniversity of DelhiDelhiIndia

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