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EMS induced intercellular chromatin transmigration in Papaver somniferum L

Author

Listed:
  • Girjesh KUMAR

    (Plants Genetics Laboratory, Department of Botany, University of Allahabad, Allahabad, India)

  • Sana NASEEM

    (Plants Genetics Laboratory, Department of Botany, University of Allahabad, Allahabad, India)

Abstract

The phenomenon of chromatin migration was observed during microsporogenesis in an ethyl methane sulphonate (EMS) treated population of poppy, which is an important medicinal plant. Cytomixis occurred through a cytoplasmic channel or by direct fusion of pollen mother cells (PMCs); the former was more recurring than the latter. The process was associated with irregular meiosis. PMCs with differing chromosome numbers from the normal diploid number (2n = 22) through cytomixis may lead to the production of aneuploid and polyploid gametes. An increase in the concentration of EMS had a positive effect on the percentage of PMCs showing cytomixis. In addition to cytomixis, other chromosomal abnormalities were also found. Cytomixis along with the related chromosomal abnormalities largely affected the post-meiotic products resulting in some pollen sterility.

Suggested Citation

  • Girjesh KUMAR & Sana NASEEM, 2013. "EMS induced intercellular chromatin transmigration in Papaver somniferum L," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 49(2), pages 86-89.
    • Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:2:id:85-2012-cjgpb
    DOI: 10.17221/85/2012-CJGPB
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