Abstract
During premeiotic interphase in the male grasshopper Brachystola magna the nucleus is divided into two nuclear envelope bound compartments, one containing the X chromosome and one the autosomes. — The autosomal compartment is characterized by an invaginated nuclear envelope with nuclear pores distributed throughout the envelope. In a polarized region of the cell the pericentric heterochromatic chromocenters are associated with the inner membrane of the envelope invaginations. In this species the chromosomes are telocentric (acrocentric?) and the pericentric heterochromatin marks the proximal chromosome ends. It is concluded that the chromosome ends are attached to the nuclear envelope at premeiotic interphase. — Comparisons are made between the present observations on chromosome arrangements and the nuclear envelope at premeiotic interphase to earlier observations at early meiotic prophase in the same species (Church, 1976). It is concluded that a rearrangement of both the proximal chromosome ends and the nuclear envelope occurs as cells enter meiotic prophase.
Similar content being viewed by others
References
Church, K.: Arrangement of chromosome ends and axial core formation during early meiotic prophase in the male grasshopper Brachystola magna. Chromosoma (Berl.) 58, 365–376 (1976)
Church, K., Moens, P.B.: Centromere behavior during interphase and meiotic prophase in Allium fistulosum from 3-D, E.M. reconstruction. Chromosoma (Berl.) 56, 249–263 (1976)
Comings, D.E.: The rational for an ordered arrangement of chromatin in the interphase nucleus. Amer. J. hum. Genet. 20, 440–459 (1968)
Dover, G.A., Riley, R.: The effect of mitotic inhibitors applied before meiosis on meiotic chromosome pairing. J. Cell Sci. 12, 143–161 (1973)
Fabbri, F., Bonzi Morassi, L.: Observations on nuclear pores of freeze-etched spore mother cells of Psilotum nudum (L.) Beauv. during early stages of meiotic prophase I. Preliminary report. Caryologia (Firenze) 28, 549–559 (1975)
Franke, W.W.: Structure, biochemistry and function of the nuclear envelope. Int. Rev. Cytol., Suppl. 4, 71–236 (1974)
Franke, W.W., Scheer, U.: Structure and function of the nuclear envelope. In: The cell nucleus (H. Busch, ed.), Vol. 1, pp. 219–347, New York: Academic Press 1974
Gillies, C.B.: An ultrastructural analyses of chromosomal pairing in maize. C.R. Lab. Carlsberg 40, 135–161 (1975)
Hotta, Y., Shepard, J.: Biochemical aspects of colchicine action on meiotic cells. Molec. gen. Genet. 122, 243–260 (1973)
La Cour, L.F., Wells, B.: The nuclear pores of early meiotic prophase nuclei of plants. Z. Zellforsch. 123, 178–194 (1972)
Moens, P.B.: The fine structure of meiotic chromosome polarization and pairing in Locusta migratoria spermatocytes. Chromosoma (Berl.) 28, 1–25 (1969)
Moens, P.B.: Serial sectioning in electron microscopy. Proc. Canad. Fed. Biol. Soc. 13, 160 (1970)
Moses, M.J.: Synaptinemal complex. Ann. Rev. Genet. 2, 263–412 (1968)
Moses, M.J., Wilson, M.H.: Spermiogenesis in an iceryne coccid Steatococcus tuberculatus Morrison. Chromosoma (Berl.) 30, 373–429 (1970)
Rasmussen, S.W.: The meiotic prophase in Bombyx mori females analyzed by three dimensional reconstructions of synaptonemal complexes. Chromosoma (Berl.) 54, 245–293 (1976)
Rickards, G.F.: Prophase chromosome movements in living cricket spermatocytes and their relationship to prometaphase, anaphase and granule movements. Chromosoma (Berl.) 49, 407–455 (1975)
Shepard, J., Boothroyd, E.R., Stern, H.: The effect of colchicine on synapsis and chiasma formation in micrpsporocytes in Lilium. Chromosoma (Berl.) 44, 423–437 (1974)
Sved, J.A.: Telomere attachment of chromosomes. Some genetical and cytological consequences. Genetics 53, 747–756 (1966)
Wagenaar, E.G.: End-to-end chromosome attachments in mitotic interphase and their possible significance to meiotic chromosome pairing. Chromosoma (Berl.) 26, 410–426 (1969)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Church, K. Chromosome ends and the nuclear envelope at premeiotic interphase in the male grasshopper Brachystola magna by 3-D, E.M. reconstruction. Chromosoma 64, 143–154 (1977). https://doi.org/10.1007/BF00327054
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00327054