Abstract
The transcriptional status of the negatively heteropycnotic spermatogonial X chromosome of Acheta was analysed on the basis of both its replication pattern and its response to 3H-UdR induced aberrations. On the basis of the latter criterion the negatively heteropycnotic spermatogonial X chromosome of Acheta has been judged to be transcriptionally inactive. This contrasts with the situation observed in somatic cells. It also contrasts with the behaviour of the X chromosome in spermatogonia of other Orthopterans.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ali, S.: Chromosomes of house cricket Acheta domesticus (L.) (Gryllidae: Orthoptera). Ind. J. Exp. Biol. 17, 1038–1040 (1979)
Arora, P.: Ph. D. Thesis, University of Delhi, Delhi 1978
Arora, P., Rao, S.R.V.: Insect Sex Chromosomes: V. 3H-Uridine induced aberrations in the X chromosomes of tetraploid spermatogonia from Gryllotalpa fossor. Chromosoma (Berl.) 77, 373–378 (1980)
Church, K.: The Grasshopper X chromosome. II. Negative heteropycnosis, transcription activities, and compartmentation during spermatogonial stages. Chromosoma (Berl.) 71, 359–370 (1979)
Craig-Cameron, T.A.: Asynchronous chromosome replication at the end of premeiotic DNA synthesis in the Schistocerca gregaria (Forskål). Cytobios 4, 7–19 (1971)
Fox, D.P., Hewitt, G.M., Hall, D.J.: DNA replication and RNA transcription of euchromatic and heterochromatic chromosome regions during grasshopper meiosis. Chromosoma (Berl.) 45, 43–62 (1974)
Henderson, S.A.: RNA synthesis during male meiosis and spermatogenesis. Chromosoma (Berl.) 15, 345–366 (1964)
Hess, O., Meyer, G.E.: Genetic activity of the Y chromosome in Drosophila during spermatogenesis. In: Advanc. genetics 14, 171–218 (1968)
Lima-de-Faria, A.: Differential uptake of tritiated thymidine into hetero and euchromatin in Melanoplus and Secale. J. biophys. biochem. Cytol. 6, 457–466 (1959)
Monesi, V.: Differential rate of ribonucleic acid synthesis in autosomes and sex chromosomes during male meiosis in the mouse. Chromosoma (Berl.) 17, 11–21 (1965)
Nicklas, R.B., Jacqua, R.A.: X chromosome DNA replication developmental shift from synchrony to asynchrony. Science 147, 1041–1043 (1965)
Rao, S.R.V., Ali, S.: Insect Sex Chromosomes: VI. A presumptive hyperactivation of the male X chromosome in Acheta domesticus (L.) Chromosoma (Berl.) 86, 325–339
Rao, S.R.V., Arora, P.: Insect Sex Chromosomes. III. Differential susceptibility of homologous X chromosomes of Gryllotalpa fossor to 3H-UdR-induced aberrations. Chromosoma (Berl.) 74, 241–251 (1979)
Sisken, J.E.: Methods for measuring the length of mitotic cycle and the time of DNA synthesis for mammalian cells in cultures. In: Methods in cell biology (D.M. Prescott ed.), vol 1, pp. 387–401 New York, London: Academic Press 1964
Taylor, J.H.: Distribution of tritium labelled DNA among chromosomes during meiosis. I. Spermatogenesis in grasshopper. J. Cell. Bio. 35, 57–67 (1965)
White, M.J.D.: Animal Cytology and Evolution, 3rd edit. Cambridge, London: Cambridge University Press 1973
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ali, S., Rao, S.R.V. Insect sex chromosomes. Chromosoma 86, 571–576 (1982). https://doi.org/10.1007/BF00330127
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00330127