Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1994-8-4
pubmed:abstractText
Closely linked repeats of a Drosophila P transposon carrying a white transgene were found to cause white variegation. Arrays of three or more transgenes produced phenotypes similar to classical heterochromatin-induced position-effect variegation (PEV), and these phenotypes were modified by known modifiers of PEV. This effect on the repeated transgenes was much stronger for a site near centric heterochromatin than it was for a medial site, and it strengthened with increasing copy number. Differences between variegated phenotypes could be accounted for if different topological structures were generated by pairing between closely linked repeat sequences. We propose that pairing of repeats underlies heterochromatin formation and is responsible for diverse gene silencing phenomena in animals and plants.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
77
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
993-1002
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Expansions of transgene repeats cause heterochromatin formation and gene silencing in Drosophila.
pubmed:affiliation
Howard Hughes Medical Institute, Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98104.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't