The where and wherefore of evolutionary breakpoints
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Journal of Biology 2009, 8:66 doi:10.1186/jbiol162Published: 24 July 2009
The 'action' in genome-level evolution lies not in the large gene-containing segments that are conserved among related species, but in the breakpoint regions between these segments. Two recent papers in BMC Genomics detail the pattern of repetitive elements associated with breakpoints and the epigenetic conditions under which breakage occurs.