The Orange Issue

Citrus greening, caused by Candidatus Liberibacter asiaticus has been making an assault on citrus plants, leading them to be stunted and ruining orange and other economically important crops. As Amy Harmon reports in the New York Times, Florida growers are turning to biotech tools to try to save the orange.

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NPR reports that Turkish high school students will no longer study evolution.

Researchers report they sequenced and identified plant species in an "al fresco" laboratory.

An Australian team searches for genetic alterations linked to depression in hopes of developing personalized treatments, the Sydney Morning Herald reports.

In PNAS this week: host contributors to typhoid fever risk, effects of obesity-related variants near TMEM18, and more.