A Distinct Type of Heterochromatin Within Drosophila melanogaster Chromosome 4

Studies of transcriptional gene silencing in Drosophila melanogaster suggest that most of chromosome 4 resembles pericentric heterochromatin. However, some modifiers of position-effect variegation, including chromosome 4 dosage and loss of SU(VAR)3-9, have different effects on silencing in pericentr...

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Bibliographic Details
Published inGenetics (Austin) Vol. 175; no. 3; pp. 1539 - 1542
Main Authors Haynes, Karmella A, Gracheva, Elena, Elgin, Sarah C. R
Format Journal Article
LanguageEnglish
Published United States Genetics Soc America 01.03.2007
Genetics Society of America
Copyright © 2007 by the Genetics Society of America
Subjects
Animals
Chromosomes
Chromosomes - genetics
Drosophila melanogaster
Drosophila melanogaster - genetics
Gene Dosage - genetics
Gene Silencing
Genetic research
Heterochromatin - genetics
Insects
Kinases
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Summary:Studies of transcriptional gene silencing in Drosophila melanogaster suggest that most of chromosome 4 resembles pericentric heterochromatin. However, some modifiers of position-effect variegation, including chromosome 4 dosage and loss of SU(VAR)3-9, have different effects on silencing in pericentric vs. distal arm chromosome 4 heterochromatin, distinguishing these two heterochromatin types.
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Communicating editor: J. A. Birchler
Corresponding author: Department of Biology, 1 Brookings Dr., Campus Box 1229, Washington University, St. Louis, MO 63130. E-mail: selgin@biology.wustl.edu
Present address: Department of Biology, Davidson College, Davidson, NC 28036.
ISSN:0016-6731
1943-2631
1943-2631
DOI:10.1534/genetics.106.066407