Similar gene expression profiles do not imply similar tissue functions

Itai Yanai, Jan O. Korbel, Stephanie Boue, Shannon McWeeney, Peer Bork, Martin J. Lercher

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Although similarities in gene expression among tissues are commonly inferred to reflect functional constraints, this has never been formally tested. Furthermore, it is unclear which evolutionary processes are responsible for the observed similarities. When examining genome-wide expression data in mouse, we found that patterns of expression similarity between tissues extend to genes that are unlikely to function in the tissues. Thus, ectopic expression can seem coordinated across tissues. This indicates that knowledge of gene expression patterns per se is insufficient to infer gene function. Ectopic expression is possibly explained as expression leakage, caused by spreading of chromatin modifications or the transcription apparatus into neighboring genes.

Original languageEnglish (US)
Pages (from-to)132-138
Number of pages7
JournalTrends in Genetics
Volume22
Issue number3
DOIs
StatePublished - Mar 2006

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Transcriptome
Genes
Gene Expression
Chromatin
Genome
Ectopic Gene Expression

ASJC Scopus subject areas

  • Genetics

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Similar gene expression profiles do not imply similar tissue functions. / Yanai, Itai; Korbel, Jan O.; Boue, Stephanie; McWeeney, Shannon; Bork, Peer; Lercher, Martin J.

In: Trends in Genetics, Vol. 22, No. 3, 03.2006, p. 132-138.

Research output: Contribution to journalArticle

Yanai, Itai ; Korbel, Jan O. ; Boue, Stephanie ; McWeeney, Shannon ; Bork, Peer ; Lercher, Martin J. / Similar gene expression profiles do not imply similar tissue functions. In: Trends in Genetics. 2006 ; Vol. 22, No. 3. pp. 132-138.
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