PMID: 6168444Jan 1, 1981Paper

Temperature-induced Balbiani rings in Chironomus thummi

Chromosoma
G MorcilloJ L Díez

Abstract

The formation of a new telomeric Balbiani ring in the right arm of chromosome III (T-BR III) has been induced in Chironomus thummi larvae by applying a wide range of temperature treatments (33 degrees - 39 degrees C). In this paper we present some kinetic and functional characteristics of this structure. T-BR III incorporates tritiated uridine, and during its formation accumulation of acidic proteins takes place. However, induction and maintenance of this puff structure appear to be insensitive to Actinomycin treatment. An additional T-BR can be induced in chromosome I by employing the most drastic temperature treatments (37 degrees - 39 degrees C). We also report the existence of a group of puffs active after heat treatments in Chironomus polytene chromosomes which could be homologous with the T-puffs of Drosophila.

References

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Citations

Mar 1, 1988·Cell Differentiation·D BarettinoJ L Díez
Apr 23, 2002·Insect Molecular Biology·M RosénJ-E Edström
Mar 4, 2014·Insect Molecular Biology·J L Martínez-GuitarteG Morcillo
Jul 2, 2015·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Raquel Martín-FolgarJosé-Luis Martínez-Guitarte
Nov 21, 1997·Experimental Cell Research·G MorcilloJ L Díez
Jan 1, 1997·Hereditas·I KamnertJ E Edström

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