Article
Positive and negative selection in murine ultraconserved noncoding elements.
Molecular biology and evolution - 1 Sept 2011
Halligan Daniel L, Oliver Fiona, Guthrie Jack, Stemshorn Kathryn C, Harr Bettina, Keightley Peter D
Abstract excerpt
There are many more selectively constrained noncoding than coding nucleotides in the mammalian genome, but most mammalian noncoding DNA is subject to weak selection, on average. One of the most striking discoveries to have emerged from comparisons among mammalian genomes is the hundreds of noncoding elements of more than 200 bp in length that show absolute conservation among mammalian orders. These elements...
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