Why So Small?

At the American Society for Microbiology's annual meeting held in New Orleans, La., this week, Yale University's Nancy Moran outlined her group's investigations of symbiotic bacterial genomes that are as small as 145 kb — and shrinking. The pea aphid's mutual obligate symbiont Buchnera aphidicola has shown a reduction in the size of its genome over time.

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Gene drives might run into biological resistance, the Economist reports.

Forensic experts exhumed painter Salvador Dalí's body to collect DNA for a paternity test, CBS News reports.

Yale Environment 360 writes that synthetic and conservation biologists aren't always on the same wavelength, but they are trying to reach an understanding.

In Science this week: full CRISPR locus integration complex structure, and more.