[Helical structure revealed upon the beta heterochromatin of polytene chromosome of Drosophila virilis]
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Chinese]
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- PMID: 15344321
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[Helical structure revealed upon the beta heterochromatin of polytene chromosome of Drosophila virilis]
[Article in
Chinese]
Shi Yan Sheng Wu Xue Bao.
2002 Mar.
Abstract
By using conventional electron microscopy, beta heterochromatin of polytene chromosome of Drosophila virilis was composed of 80-100nm chromonemas. Helical structures consisting of the 30nm chromatin fibres were identified in the chromonema. Based on these observations, the radial loop model and the multiple coiling model were discussed.
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