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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The Jackson Laboratory has filed a complaint accusing Nanjing University of breeding and re-selling its mouse models, the Hartford Courant reports.

Oxford researchers are turning to virtual reality to visualize genes and regulatory elements, Phys.org says.

In Science this week: neutrophils rely on microRNA to protect against lung inflammation, and more.

China is moving forward with plans to sequence a million citizens, the Wall Street Journal reports.