Researchers from the US and France used comparative genomics to begin defining the core and accessory genomes of nitrogen-fixing root nodule bacteria from a genus called Sinorhizobium. The team started by sequencing and assembling draft genomes for four dozen strains representing five so-called genospecies: S. meliloti, S. medicae, S. fredii, S. saheli, and S. terangae.

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Science speaks with the University of Michigan's Jedidiah Carlson, who has tracked population genetic discussions at white nationalist sites.

Gene therapies could qualify for a faster US Food and Drug Administration approval process, according to Stat News.

NPR reports that the US House of Representatives has passed a bill to enable terminally ill patients access to experimental drugs.

In Genome Research this week: inversion variants mapped in human, non-human primate genomes; transcriptome profiling of maize, sorghum; and more.