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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

Arora, P. and Rao, S. R. V. (1979) Insect sex chromosomes: IV DNA replication in the chromosomes of Gryllotalpa fossor. Cytobios 26, 45–55.Google Scholar
Arora, P. and Rao, S. R. V. (1980) Insect sex chromosomes: V3H-Uridine induced aberrations in the X-chromosomes of tetraploid spermatogonia from Gryllotalpa fossor Chromosoma 77, 373–378.CrossRefGoogle Scholar
Bhattacharya, M., Sher, Ali and Rao, S. R. V. (1983) Insect sex chromosomes VIII Identification of active/inactive X chromosomes in Gryllotalpa fossor by 5-BrdU/AO fluorescence. Exp. Cell. Res. 144, 228–231.CrossRefGoogle Scholar
Church, K. (1979) The grasshopper X chromosome: 1 States of condensation and the nuclear envelope at G1S and G2 of premeiotic interphase and at early meiotic prophase. Chromosoma 71, 347–358.CrossRefGoogle Scholar
Clermont, Y. (1972) Kinetics of spermatogenesis in mammals, seminiferous epithelium cycle and spermatogonial renewal. Physiol. Rev. 52, (1), 198–236.Google Scholar
Craig-Cameron, T. A. (1971) Asynchronous chromosome replication at the end of premeiotic DNA synthesis in the Schistocerca gregaria (Forskl). Cytobios 4, 7–19.Google Scholar
Ghosh, S. N. (1985) Studies on insect sex chromosomes: Functional aspects of the X-chromosome in Schistocerca gregaria (Forskl). Ph.D. Thesis, University of Delhi.Google Scholar
Hannah, Alva A. (1965) The premeiotic stages of spermatogenesis. Advances in genetics 13, 157–226.Google Scholar
John, B. and Naylor, B. (1961) Anomalous chromosome behaviour in the germ line of Schistocerca gregaria. Heredity 16, 187–198.Google Scholar
Lyon, M. F. (1962) Sex chromatin and gene action in the mammalian X-chromosome. Am. J. Hum. Genet. 14, 135–148.Google Scholar
Monesi, V. (1962) Autoradiographic study of DNA synthesis and the cell cycle in the spermatogonia and spermatocytes of the mouse testis using 3H-thymidine J. Cell Biol. 14, 1–18.Google Scholar
Muckenthaler, F. A. (1964) Autoradiographic study of nucleic acid synthesis during spermatogenesis in the grasshopper Melanoplus differentialis. Exp. Cell Res. 35, 531–547.CrossRefGoogle ScholarPubMed
Nicklas, R. B. and Jaqua, R. A. (1965) X chromosome DNA replication: Developmental shift from synchrony to asynchrony. Science 147, 1041–1043.CrossRefGoogle ScholarPubMed
Rao, S. R. V. and Arora, P. (1978) Insect sex chromosomes: I Differential response to 5-Bromodeoxyuridine of the two X chromosomes in females of the mole cricket Gryllotalpa fossor (Scudder) Indian J. Exp. Biol. 16, 870–872.Google Scholar
Rao, S. R. V. and Arora, P. (1979) Insect sex chromosomes: III Differential susceptibility of homologous X-chromosomes of Gryllotalpa fossor to 3H Uridine induced aberration. Chromosoma 74, 241–251.CrossRefGoogle Scholar
Utakoji, T. and Hsu, T. C. (1965) DNA replication pattern in somatic and germ line cells of the male Chinese Hamster. Cytogenetics 4, 295–315.CrossRefGoogle ScholarPubMed
White, M. J. D. (1970) Asymmetry of heteropycnosis in tetraploid cells of a grasshopper. Chromosoma 30, 51–61.Google Scholar
Zakharov, A. F. and Egolina, N. A. (1972) Differential spiralization along mammalian chromosoma 1 Brd U-revealed differentiation in Chinese Hamster chromosomes. Chromosoma 38, 341–365.Google Scholar