Relative reference: Foxtail millet offers clues for assembling the switchgrass genome
News Outlet:
U.S. Dept. of Energy Joint Genome Institute
Date published:
May 14, 2012 Arranging DNA fragments into a genome sequence that scientists can interpret is a challenge often compared to assembling a puzzle, except there is no box to provide an idea of what the picture is even supposed to be. Sometimes there's guidance in the form of other publicly-available DNA sequences from related organisms that can be used to guide the assembly process, but its usefulness depends on how closely related any two sequences are to one another. For example, a reference genome might be so distantly related from the one being assembled, it would be akin to comparing a Model-T to a contemporary hybrid car.



