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Hello Muddah, Hello Fadduh

The New York Times' Nicholas Wade examines genetic imprinting, in what he calls a "tug of war" between the mother's and father's contributions to a fetus. Until recently, Wade notes, about 100 imprinted genes were known. According to research published in Science in July by Harvard's Christopher Gregg and colleagues, there are nearly 1,300 genes imprinted in mice. According to study co-author Catherine Dulac, it's likely that a "substantial, though lesser, proportion to be imprinted in people — maybe some one percent of the genome." In the mouse brain, Gregg and Dulac et al. found that 347 genes "where either the mother's or the fathers copy was more actively expressed in certain regions," Wade reports, which the investigators attribute to evolutionary fitness and familial interests.

The Scan

Not Yet a Permanent One

NPR says the lack of a permanent Food and Drug Administration commissioner has "flummoxed" public health officials.

Unfair Targeting

Technology Review writes that a new report says the US has been unfairly targeting Chinese and Chinese-American individuals in economic espionage cases.

Limited Rapid Testing

The New York Times wonders why rapid tests for COVID-19 are not widely available in the US.

Genome Research Papers on IPAFinder, Structural Variant Expression Effects, Single-Cell RNA-Seq Markers

In Genome Research this week: IPAFinder method to detect intronic polyadenylation, influence of structural variants on gene expression, and more.