Figure 8.

Expression entropy (breadth of expression across tissues) based on data from the Norvatis transcriptome atlas [45]shows that deeply conserved, snoRNA carrying host genes are generally more broadly expressed than non-carrying genes. On the backdrop of a requirement for broad snoRNA expression, this may suggest a selective advantage for this association. A total of 7022 genes were considered, based on usable expression data and reliable correlation to EnsEMBL genes ids in release 58.

Hoeppner and Poole BMC Evolutionary Biology 2012 12:183   doi:10.1186/1471-2148-12-183
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