Studying Trans-Effects of Modifiers on the Position-Effect Variegation in a Set of Euchromatin–Heterochromatin Rearrangements in Drosophila melanogaster

Studying Trans-Effects of Modifiers on the Position-Effect Variegation in a Set of... The effects of suppressors of position-effect variegation were studied in a set of euchromatin–heterochromatin rearrangements of the X chromosome accompanied by inactivation of the gene wapl.The rearrangements differed from one another in the size of the heterochromatic block adjacent to euchromatin, with the euchromatin–heterochromatin border remaining unchanged. In one rearrangement (r20), the position effect caused by a small block of adjacent heterochromatin may be determined by its interaction with the neighboring main heterochromatic region of the X chromosome. Chromosome 3 (the RT chromosome) was found to have a strong suppressing effect on all rearrangements, irrespective of the amount of heterochromatin adjacent to euchromatin. Su-var(3)9, a known suppressor of the position-effect variegation, had a considerably weaker suppressing effect. The RT chromosome had the strongest suppressing effect on the rearrangement r20. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Studying Trans-Effects of Modifiers on the Position-Effect Variegation in a Set of Euchromatin–Heterochromatin Rearrangements in Drosophila melanogaster

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1012369025016
Publisher site
See Article on Publisher Site

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