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This Week in PNAS

In the advance, online edition of PNAS this week, Joshua Akey and his coworkers genotyped 275 dogs from 10 breeds to look for signals of artificial selection in the dog genome. In the process, they found more than 150 parts of the genome containing recent signals of selection that may influence breed variable traits such as size, coat, behavior, and physiology.

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As we enter conference season, Nature News asks why graduate students and postdocs are sometimes forced to choose between paying the rent and paying to attend important meetings.

A new analysis says that a 2018 study claiming to show biparental mtDNA inheritance has several flaws.

In PNAS this week: a genome sequence analysis of Crucihimalaya himalaica, multicellularity and fruiting body development in mushroom-forming fungi, and more.

Two researchers are calling for education for scientists on defending facts.