Article
Human genome ultraconserved elements are ultraselected.
Science (New York, N.Y.) - 17 Aug 2007
Katzman Sol, Kern Andrew D, Bejerano Gill, Fewell Ginger, Fulton Lucinda, Wilson Richard K, Salama Sofie R, Haussler David
Abstract excerpt
Ultraconserved elements in the human genome are defined as stretches of at least 200 base pairs of DNA that match identically with corresponding regions in the mouse and rat genomes. Most ultraconserved elements are noncoding and have been evolutionarily conserved since mammal and bird ancestors diverged over 300 million years ago. The reason for this extreme conservation remains a mystery. It has been speculated...
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