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Studies of desynapsis inSorghum

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Abstract

Out of five F1 plants of the crossSorghum controversum (2n=40)×S.almum (2n=40) one was found to be desynaptic. It is suggested that this desynapsis, which is of the “medium-strong” class, may be due to a spontaneous mutation. Several meiotic abnormalities have been recorded and possible explanations are suggested. The plant was found to be highly pollen sterile and did not set seed on selfing. However, when pollinated with normal pollen from one of its parents, 1 to 5 seeds per panicle were obtained.

The possible utility of this material for physiological studies on crossing over and chiasma formation has been indicated.

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Authors and Affiliations

  1. Central Tuber Crops Research Institute, Sasthamangalam, Trivandrum-10, Kerala, India

    R. S. Sadasivaiah (Post-doctoral Senior Research fellow of the C.S.I.R.) & M. L. Magoon (Director, Central Tuber Crops Research Institute, Ministry of Food and Agriculture (I.C.A.R.)

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  1. R. S. Sadasivaiah
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  2. M. L. Magoon
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Sadasivaiah, R.S., Magoon, M.L. Studies of desynapsis inSorghum . Genetica 36, 307–314 (1965). https://doi.org/10.1007/BF01557163

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  • DOI: https://doi.org/10.1007/BF01557163

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