This Week in PNAS

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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Researchers have sequenced the northern white rhinoceros to gauge whether it could be brought back from the edge of extinction, the New York Times reports.

Bavaria expands its forensic genetic analyses to include DNA phenotyping, raising discrimination concerns.

Tufts University researchers found a role for miRNA in transmitting stress between generations, the Economist reports.

In Science this week: gut microbiome influences liver cancer growth, spread; and more.