Interpreting mammalian evolution using Fugu genome comparisons

Ivan Ovcharenko, Lisa Stubbs, Gabriela G. Loots

Research output: Contribution to journalArticlepeer-review


Recently, it has been shown that a significant number of evolutionarily conserved human-Fugu noncoding elements function as tissue-specific transcriptional enhancers in vivo, suggesting that distant comparisons are capable of identifying a particular class of regulatory elements. We therefore hypothesized that by juxtaposing human/Fugu and human/mouse conservation patterns we can define conservation criteria for discovering transcriptional regulatory elements specific to mammals. Genome-scale comparisons of noncoding human/Fugu evolutionary conserved elements (ECRs) and their humans/mouse counterparts revealed a particular signature common to human/mouse ECRs (≥350 bp long, ≥77% identity) that are also conserved in fishes. This newly defined threshold identifies 90% of all human/Fugu noncoding ECRs without the assistance of human-Fugu genome alignments and provides a very efficient filter for identifying functional human/mouse ECRs.

Original languageEnglish (US)
Pages (from-to)890-895
Number of pages6
Issue number5
StatePublished - Nov 2004
Externally publishedYes

ASJC Scopus subject areas

  • Genetics


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