This Week in Science

In Science this week, a team researchers from the University of California, Riverside, and elsewhere report on the discovery of fungal small RNAs that block a host plant's defense mechanisms by hijacking its RNAi pathways. The investigators studied the fungus Botrytis cinerea, which causes gray mold disease in certain plants, and identified 832 small RNAs that invaded the cells of Arabidopsis and tomato plants when they were infected by the pathogen.

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Two researchers have found that behavioral genetic defenses in criminal cases don't tend to affect outcomes, according to Popular Science.

Researchers report that while host genetics influence the oral microbiome, they don't appear to affect cavity-causing microbes, the Economist says.

Pandas' gut microbiomes change as what they eat changes with the seasons, writes Discover's Inkfish blog.

In PLOS this week: comparative genomic study of malaria-linked macaque parasite, search for apple root reference genes, and more.