Researchers have produced a high-quality draft genome of the coffee plant
, Coffea canephora
. Using a combination of Sanger, Roche 454, and Illumina sequencing, they put together a 568.6 million base assembly that stretched over around 80 percent of the plant's 710 million base genome. Their analysis of the genome, combined with comparisons to sequences from related plants, uncovered several gene family expansions in coffee, including a boost in genes involved in plant defense and caffeine production.