Researchers at MIT and elsewhere report in this week's PLoS Genetics on their comparative and functional genomics investigation of Rhodococcus opacus PD630 for potential biofuel development. The team sequenced the 9.27 Mb genome, and via metabolic reconstruction found 8,632 genes that they assigned to 2,017 metabolic reactions. Of all metabolic reaction-associated genes, the team found "261 ... were implicated in the R.