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This Week in PLOS

Ticks alter what genes are expressed in their saliva as they feed on their hosts, researchers from the Czech Republic and the US report in PLOS Neglected Tropical Diseases. They performed RNA sequencing on single salivary glands from adult female Ixodes ricinus ticks. These ticks fed on either naturally on a rabbit or through artificial membrane feeding of rabbit blood lacking immune factors prior to the collection of their salivary glands.

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Wired reports on how genetic genealogy's use in forensics has exploded in the year since an arrest in the Golden State Killer case was made.

Retraction Watch reports that the increase in retracted papers at a journal is due to more resources there to tackle publication ethics.

New York City has settled with a forensic scientist who was fired after questioning a DNA testing approach used by the medical examiner's office, the New York Times reports.

In Nature this week: technique for measuring replication fork movement, WINTHER trial results, and more.