New research out of the University of Illinois shows that RNAi may be less effective in some populations of Western corn rootworms compared with others, adding a new wrinkle to ongoing efforts to use the gene-silencing technology for agricultural insect control.

As a result, those developing RNAi-based strategies to fight pests should consider the consistency of the technology in phenotypically different populations before commercializing them, according to the investigators.

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In Science this week: swapping yeast genes with human orthologs to study conservation of function, and more.

Hong Kong is using DNA phenotyping to shame litterers.

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