Wednesday, October 2, 2019

When Complete Isn’t Complete: C. Elegans Genome Gets a Makeover

Cover artwork by Daisy S. Lim It was the first multicellular eukaryotic genome sequenced to apparent completion, but it turns out the Caenorhabditis elegans reference that’s been used as a resource for the past 20 years does not exactly correspond with any N2 strain that exists today.  Assembled using sequence data from N2 and CB1392 populations of uncertain lineage grown in at least two different laboratories during the 1980s and 1990s, accuracy of the C. elegans reference genome is limited both by genetic variants and by the limitations of the technology of the time (clone-based Sanger technology). It is believed…

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