Meiotic Behaviour of Spontaneous and Mutagen Induced Partial Desynaptic Plants in Pearl Millet

DOI Web Site 2 Citations
  • Singh R. B.
    Department of Genetics and Plant Breeding, Banaras Hindu University
  • Singh B. D.
    Department of Genetics and Plant Breeding, Banaras Hindu University
  • Laxmi Vijay
    Department of Genetics and Plant Breeding, Banaras Hindu University
  • Singh R. M.
    Department of Genetics and Plant Breeding, Banaras Hindu University

Abstract

Partial desynaptic plants were isolated from normal population of pearl millet (Pennisetum typhoides S. and H.) inbred T55 and mutagen (EMS and gamma-rays) treated populations of inbreds Tif23A, Tif23B and K560. The pachytene pairing was complete and normal. A variable number (2-14) of univalents occurred at MI. Anaphase I separation was normal in the majority (66-79%) of the cells; many showed 8:6 and 9:5 chromosome separation. The spontaneous desynaptic plant showed laggards and chromatin bridges at anatelophase I, while the induced ones did not show these aberrations. Chiasma frequency in the desynaptic plants was lower than that in the normal controls.

Journal

  • CYTOLOGIA

    CYTOLOGIA 42 (1), 41-47, 1977

    Japan Mendel Society, International Society of Cytology

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