Spectrum

Rapid evolution of mutation rate and spectrum in response to environmental and population-genetic challenges – Nature Communications

Long-term evolution experiments All populations originated from two ancestral strains with different initial mutation-rates. Ancestral wild-type (WT) are descendants of PFM2, a prototrophic derivative of E. coli K-12 str. MG1655, while ancestral mismatch repair knockouts (MMR-) are descendants of PFM5 (PFM2, ∆mutL)24. The long-term cultures consist of three transfer-size treatments, differing by 1 mL (large transfer-size …

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New software flags autism rat model’s telltale squeaks | Spectrum | Autism Research News

New software flags autism rat model’s telltale squeaks | Spectrum | Autism Research News

Squeaks who: A new software tool parses rodent squeaks based on the sources of the calls and their intended targets. People speak; rats squeak. But the rodents also communicate through inaudible ultrasonic vocalizations, which offer insights into their social behavior. A new software tool called TrackUSF can aid researchers collecting ultrasonic data by recording the …

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