Induction of a special Balbiani ring by position effect in the salivary gland chromosomes ofAcricotopus lucidus |
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Authors: | W Staiber |
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Institution: | (1) Institut für Allgemeine Genetik der Universität Hohenheim, D-7000 Stuttgart, Germany |
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Abstract: | Summary Chromosome mutations were induced by X-ray treatment of males ofAcricotopus lucicus. One of the larvae of the F1-generation showed a dislocation of a segment of the centromeric region into an euchromatic part of the same chromosome as a consequence of mutation. In the new position, in some salivary gland cells, this segment expressed a distinct Balbiani ring. In other cells this Balbiani ring regressed, probably through the influence of ecdysone. |
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