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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Researchers hope to tease out the signature effects that different carcinogens leave on the genome to determine their contributions to disease, Mosaic reports.

The Wall Street Journal looks into the cost of new gene therapies.

An Imperial College London-led team reports that it was able to use a gene drive to control a population of lab mosquitos.

In PNAS this week: genomic effects of silver fox domestication, limited effect of mitochondrial mutations on aging in fruit flies, and more.