, Volume 41, Issue 1, pp 170–178 | Cite as

Desynapsis inColocasia antiquorum Schott.

  • R. Krishnan
  • M. L. Magoon
  • K. Vijaya Bai


A culture ofColocasia antiquorumSchott. (2n=28) exhibiting desynapsis was detected in the course of cytological screening of a large number of cultivars maintained at the Institute. Intensive studies on the course of meiosis in this material as well as in the normal plants were made commencing from pachytene stage. Meiosis in the normal plants was regular, leading to the production of 95% stainable pollen. On the other hand, meiosis in the desynaptic material was found to be highly irregular resulting in the formation of over 80% sterile pollen. In its meiotic behaviour, the desynapticColocasia conforms to the “complete” type of desynaptics. The available evidence suggests a spontaneous origin of the desynaptic through gene mutation. The utility of this material in the study of unravelling basic cytogenetical problems is discussed.


Gene Mutation Intensive Study Normal Plant Sterile Pollen Meiotic Behaviour 
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Copyright information

© Martinus Nijhoff 1970

Authors and Affiliations

  • R. Krishnan
    • 1
  • M. L. Magoon
    • 1
  • K. Vijaya Bai
    • 1
  1. 1.Central Tuber Crops Research InstituteTrivandrum-10India

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