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Direct cytological evidence for true terminalization of chiasmata in maize

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Abstract

Equational and disjunctional separation of heterozygous heterochromatic regions was observed relative to chiasma positions at diakinesis. Equational separation of heterozygous knobs was frequently observed and always accompanied by a chiasma distal to the knob. This is considered evidence that in these cases a crossover had occurred in a position proximal to the knob and had terminalized to a position distal to the knob by the time of fixation for observation.

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  1. Department of Zoology, University of Texas, 78712, Austin, Texas, USA

    Marjorie P. Maguire

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  1. Marjorie P. Maguire
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Maguire, M.P. Direct cytological evidence for true terminalization of chiasmata in maize. Chromosoma 71, 283–287 (1979). https://doi.org/10.1007/BF00287137

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  • DOI: https://doi.org/10.1007/BF00287137

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