Abstract
The association of microtubules with mitotic holokinetic chromosomes of Tetranychus urticae Koch was investigated in serial ultrathin sections. Reconstructions from 14 series showed that 60–100 microtubules were associated with the entire poleward surfaces of the chromosomes. In the telophase of early developmental stages the chromosomes were decondenseed into separate micronuclei, containing at least one nucleolus. From these morphologic data, the fate of induced chromosome fragments, described in earlier papers, is surmised to depend on events in interphase as well as in mitosis.
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References
Albertson DG, Thompson JN (1982) The kinetochores of Caenorhabditis elegans. Chromosoma 86:409–428
Benavente R (1982) Holocentric chromosomes of Arachnids: presence of kinetochore plates during meiotic divisions. Genetica 59:23–27
Bokhari FS, Godward MBE (1980) The ultrastructure of the diffuse kinetochore in Luzula nivea. Chromosoma 79:125–136
Buck RC (1967) Mitosis and meiosis in Rhodnius prolixus: The fine structure of the spindle and diffuse kinetochore. J Ultrastruct Res 18:489–501
Comings DE, Okada TA (1972) Holocentric chromosomes in Oncopeltus: kinotochore plates are present in mitosis but absent in meiosis. Chromosoma 37:177–192
Cooper KW (1939) The nuclear cytology of the grass mite, Pediculopsis graminum (Reut), with special reference to karyokinesis. Chromosoma 1:51–103
Das NK (1962) Synthetic capacities of chromosome fragments correlated with their ability to maintain nuclear material. J Cell Biol 15:121–130
DuPraw EJ (1970) DNA and chromosomes. Holt Rinehart and Winston Inc, New York
Feiertag-Koppen CCM (1976) Cytological studies of the two-spotted spider mite Tetranychus urticae Koch (Tetranychidae, Trombidiniformes) I. Meiosis in eggs. Genetica 46:445–456
Mazia D (1961) Mitosis and the physiology of cell division. In: Brachet J, Mirsky AE (eds). The cell. Acad Press Inc, New York 377–412
Moens PB, Church K (1977) Centromere sizes, positions, and movements in the interphase nucleus. Chromosoma 61:41–48
Phillips SG, Phillips DM (1969) Sites of nucleolus production in cultured Chinese hamster cells. J Cell Biol 40:248–268
Pijnacker LP, Ferwerda MA (1972) Diffuse kinetochores in the chromosomes of the arrhenotokous spider mite Tetranychus urticae Koch. Experientia 28:354
Riess RW, Barker KR, Biesele JJ (1978) Nuclear and chromosomal changes during sperm formation in the scorption, Centruroides vittatus (Say). Caryologia 31:147–160
Ruthmann A, Permantier Y (1973) Spindel und Kinetoehoren in der Mitose und Meiose der Baumwollwanze Dysdercus intermedius (Heteroptera). Chromosoma 41:271–288
Tempelaar MJ (1979a) Aberrations of holokinetic chromosomes and associated lethality after X-irradiation of meiotic stages in Tetranychus urticae Koch (Acari, Tetranychidae). Mut Res 61:259–274
Tempelaar MJ (1979b) Fate of fragments and properties of translocations of holokinetic chromosomes after X-irradiation of mature sperm of Tetranychus urticae Koch (Acari, Tetranychidae). Mut Res 63:301–316
Tempelaar MJ (1980) DNA content in isolated nuclei of postembryonic stages of progeny from normal and irradiated males of Tetranychus urticae Koch (Acari, Tetranychidae). Chromosoma 77:359–371
Yamada M, Yoshida S (1972) Graphic stereo reconstruction of serial sections. J Microsc 95:249–256
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Tempelaar, M.J., Drenth-Diephuis, L.J. Ultrastructure of holokinetic mitotic chromosomes and interphase nuclei of Tetranychus urticae Koch (Acari, Tetranychidae) in relation to loss and missegregation of induced fragments. Chromosoma 88, 98–103 (1983). https://doi.org/10.1007/BF00327328
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DOI: https://doi.org/10.1007/BF00327328