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The quinacrine-fluorescence patterns of the chromosomes of Allium carinatum

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Abstract

Quinacrine staining of somatic chromosomes in Allium carinatum shows intense fluorescence patterns which allow their recognition and the study of their degree of heterozygosity. This makes possible the study of chromosome polymorphism at a level until now impossible to achieve. The intense fluorescence patterns correspond to heterochromatic segments visible as darkly stained regions in prophase chromosomes. Interphase nuclei show fluorescent chromocentres of the same size and distribution as in conventionally stained preparations, and there is a good correlation between intense fluorescence patterns, late replicating DNA and heterochromatin.

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Authors and Affiliations

  1. Botany School, Oxford

    Canio G. Vosa

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  1. Canio G. Vosa
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Vosa, C.G. The quinacrine-fluorescence patterns of the chromosomes of Allium carinatum . Chromosoma 33, 382–385 (1971). https://doi.org/10.1007/BF00326500

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  • DOI: https://doi.org/10.1007/BF00326500

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