Spatial organization of the Drosophila nucleus: a three-dimensional cytogenetic study.

Y. Gruenbaum*, M. Hochstrasser, D. Mathog, H. Saumweber, D. A. Agard, J. W. Sedat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

The combination of optical fluorescence microscopy with digital image processing and analysis has been used to examine the three-dimensional organization of chromosomes within intact polytene nuclei. Although the arrangement indicates a high degree of flexibility, there are many conserved features between nuclei at the same developmental state. For example, chromosome arms are loosely coiled with centromeres clustered at the opposite end of the nucleus from the telomeres. Individual chromosome arms are not interwoven but occupy different spatial domains. Chromosomal sites that contact the envelope correlate with intercalary heterochromatin. Connections are observed between actively transcribing regions.

Original languageEnglish
Pages (from-to)223-234
Number of pages12
JournalJournal of cell science. Supplement
Volume1
StatePublished - 1984

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