PreprintCited by 643Genomics and Chromatin DynamicsChromosomal and Genetic VariationsDevelopmental Biology and Gene Regulation

Temporal control of puffing activity in polytene chromosomes

Ashburner, M., Chihara, C., Meltzer, P., Richards, G.·1974·Cold Spring Harbor Symposia on Quantitative Biology

Abstract

The genetic organization of individual bands of polytene chromosomes is an enigma. On the one hand, we have evidence (Rudkin, 1965; Daneholt and Edström, 1967; Mulder et al, 1968; see also Rasch et al., 1971) that an “average” band contains DNA equivalent to 40,000 or so nucleotide pairs. The range is perhaps between 3000 and 100,000 nucleotide pairs (Beermann, 1972). On the other hand, classical (e.g., Painter, 1934; Bridges, 1935, 1936; Mackensen, 1935; Muller and Prokofyeva, 1935) and more modern (e.g., Hochman, 1971; Lefevre, 1971; Lim et al., 1971; Judd et al., 1972; Rayle, 1972) evidence strongly suggests that one band (or band plus adjacent interband(s), if you will: Crick, 1971) corresponds to a unit of genetic function.

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Crossref · 10.1101/sqb.1974.038.01.070

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  • The polytene chromosome model allowed description of the induction by 20E of a specific sequence of puffs, a key finding for understanding the mechanism of action of steroid hormones through their binding to nuclear receptors and inducing a sequence of gene activations.

    “This biological model allowed description of the induction by 20E of a specific sequence of puffs, and this was a key finding for understanding the mechanism of action of steroid hormones through their binding to nuclear receptors and inducing a sequence of gene activations (Figure 5) [15,16].”

    From Ecdysteroids (2021) · cites this paper as [16]

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Authors
Ashburner, M., Chihara, C., Meltzer, P., & Richards, G.
Affiliations
University of Cambridge (GB)
Venue
Cold Spring Harbor Symposia on Quantitative Biology
Published
1974-01-01
Volume
38
Issue
0
Pages
655-662
ISSN
  • 0091-7451 (ISSN-L)
  • 1943-4456
OpenAlex
W2136267625
Cited by
641
References
0
Citations by year
2026: 6 · 2025: 7 · 2024: 10 · 2023: 7 · 2022: 4 · 2021: 7 · 2020: 9 · 2019: 6 · 2018: 5 · 2017: 9 · 2016: 9 · 2015: 5 · 2014: 12 · 2013: 11 · 2012: 14
Type
posted content
Language
en
Open access
closed
Locations
  • Cold Spring Harbor Symposia on Quantitative Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
polytene chromosomes, puffing, chromosome banding, genetic organization, interbands, Drosophila
MeSH terms
Animals, Anti-Bacterial Agents, Chromosomes, Cycloheximide, DNA, Drosophila melanogaster, Ecdysone, Enzyme Repression, Genes, Puromycin, RNA, Time Factors, Transcription, Genetic, Protein Biosynthesis

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