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DNA replication in the spermatogonial cells of Gryllotalpa fossor and Schistocerca gregaria

Published online by Cambridge University Press:  19 September 2011

S. N. Ghosh ,
M. Bhattacharya  and
S. R. V. Rao
S. N. Ghosh
Affiliation:
Department of Zoology, University of Delhi, Delhi-110007, India
M. Bhattacharya
Affiliation:
Department of Zoology, University of Delhi, Delhi-110007, India
S. R. V. Rao
Affiliation:
Department of Zoology, University of Delhi, Delhi-110007, India
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Abstract

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.

Résumé

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.

Keywords

DNA replicationOrthopteraspermatogonial cellstwo populationsX-chromosome
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 8 , Issue 3 , June 1987 , pp. 359 - 364
Copyright
Copyright © ICIPE 1987

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References

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