alexa Intergenic lncRNAs and the evolution of gene expression.


Journal of Neurology & Neurophysiology

Author(s): Marques AC, Ponting CP, Marques AC, Ponting CP

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Abstract Eukaryote genomes encode a surprisingly large number of noncoding transcripts. Around two-thirds of human transcribed loci do not encode protein, and many are intergenic and produce long (>200 nucleotides) noncoding RNAs (lncRNAs). Extensive analyses using comparative genomics and transcriptomics approaches have established that lncRNA sequence and transcription tend to turn over rapidly during evolution. Our appreciation of the biological roles of lncRNAs, based only on a handful of transcripts with well-characterized functions, is that lncRNAs have diverse roles in regulating gene expression. These proposed roles together with their rapid rates of evolution suggest that lncRNAs could contribute to the divergent expression patterns observed among species and potentially to the origin of new traits. Copyright © 2014 Elsevier Ltd. All rights reserved. This article was published in Curr Opin Genet Dev and referenced in Journal of Neurology & Neurophysiology

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