NEW YORK (GenomeWeb) – While environmental RNAi (eRNAi) — sequence-specific knockdown of gene expression via ingested double-stranded RNA — has been demonstrated in nematodes and certain insect species, the mechanisms underlying this process and its variability remain largely unknown.

Research published last month by researchers from Monsanto, however, has added some color to the picture, suggesting that the stability of long dsRNAs in the gut lumens of insects plays a key role in their sensitivity to eRNAi.

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A former Penn State Hershey Medical Center staffer has admitted to lying about skipping mandatory steps of genetic cancer tests he performed, the Associated Press reports.

The genome of a rare, red bat suggests that its effective population size has been in decline for thousands of years, according to a PLOS One study.

In Nature this week: investigation into the genetics of medulloblastoma, and more.

A project in the UK is to use genomic selection to speed spruce tree growth, according to Innovators Magazine.