In the 6th June, 2013 issue of Nature vol. 498 ; 8 an article entitled, “Spruce shotgun sequencing ” has been published. Multiple technologies have allowed researchers to piece together the highly repetitive genome of the white spruce (Picea glauca), one of the biggest assembled.
Like that of the Norway spruce (Picea abies), the draft genome, at more than 20 billion base pairs, is many times larger than the human genome. Inanc Birol at the Genome Sciences Centre in Vancouver, Canada, and his colleagues modified commercial platforms to read longer DNA fragments. The researchers also used software that relies on parallel computation of overlaps between fragments.