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Random chromosome breakage by colchicine inViscum fischeri (Loranthaceae)

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Summary

When the shoot-tips ofViscum fischeri Engl. were treated with various concentrations of colchicine for different lengths of time, it was found that in this plant chromosome breakage was not localized to centromeric region as reported in other plants. InV. fischeri chromosome breakage occurred at random (simulating X-ray-induced fragmentation). The percentage of breakage increased linearly with respect to time at concentrations 0.1, 0.2, 0.3% but parabolically at 0.5%.

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Author notes

  1. A. S. Islam

    Present address: Department of Botany, University of Dacca, Dacca-2, Bangladesh

  2. A. Irudayanathan

    Present address: Department of Mathematics, Kenyatta University College, Nairobi

Authors and Affiliations

  1. Department of Botany, University of Nairobi, Nairobi, (Kenya)

    A. S. Islam, K. Njoroge & A. Irudayanathan

Authors
  1. A. S. Islam
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  2. K. Njoroge
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  3. A. Irudayanathan
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Additional information

Acknowledgment. The authors are grateful to Dr M. A. Hannan of NRC, Ottawa, Canada, for his helpful criticism and suggestions, and to Professor S. K. Imbamba, Chairman, Dept. of Botany, University of Nairobi for laboratory facilities.

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Islam, A.S., Njoroge, K. & Irudayanathan, A. Random chromosome breakage by colchicine inViscum fischeri (Loranthaceae). Experientia 34, 328–329 (1978). https://doi.org/10.1007/BF01923015

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  • DOI: https://doi.org/10.1007/BF01923015

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