• Chromosome catenation in someF1Oenothera hybrids

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    • Abstract


      The chromosome linkages in a number ofOenothera F1 hybrids have been found to show that (1) the chiasma frequency per pair of chromosome limbs is higher in the bivalents than in the multiple rings, (2) the pairs of frequencies in different hybrids are positively correlated, and (3) breaks (chiasma failures) occur at random in the rings.

      Evidence of interference between chiasmata is also brought forward and discussed. It appears likely that short chromosomes have a higher mean frequency relative to their length than have longer chromosomes.

    • Author Affiliations


      D. G. Catcheside1

      1. Department of Botany, King’s College, London
    • Dates

  • Journal of Genetics | News

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      Posted on July 25, 2019

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