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In a paper published online in advance in PNAS this week, a team led by investigators at the US Department of Agriculture shows that "overexpression of the maize Corngrass1 microRNA prevents flowering, improves digestibility, and increases starch content of switchgrass." The researchers show that several greenhouse and field grown plants into which the Cg1 gene was transferred showed up to 250 percent more starch and "a complete inhibition of flowering."

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Two COVID-19 vaccine developers have released their trial protocols to build public trust, the New York Times reports.

A new analysis finds the rapid COVID-19 test from DnaNudge to be highly accurate, Reuters reports.

In Science this week: global citizens' assembly on genome-editing technologies proposed, epigenetic markers predict metformin response, and more.

According to the Verge, many US states are not including positive results from rapid COVID-19 testing in their case numbers.