Abstract
The heteroohromatin of Scilla sibirica, consists of two distinct types: 1) showing enhanced Quinacrine fluorescence and located near the centromere of all the chromosomes of the complement, and 2) with reduced Quinacrine fluorescence and located in various positions along the chromosomes. After a denaturation-reannealing treatment both heterochromatin types are stained by Giemsa, and by acetic-orcein. Acetic-orcein, however, tends to stain preferentially the reduced fluorescence segments. An analysis of chromosome variation in a population of twenty plants, reveals that all the plants are unique in their heterochromatic segment endowment. All the chromosomes are polymorphic but there is a certain constancy for band patterns in individual chromosome types, and for the number of bands per chromosome complement.
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Vosa, C.G. Heterochromatin recognition and analysis of chromosome variation in Scilla sibirica . Chromosoma 43, 269–278 (1973). https://doi.org/10.1007/BF00294275
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DOI: https://doi.org/10.1007/BF00294275