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Blue Roses? Fragrant Snapdragons?

If Yoshi Tanaka, a researcher at Japan’s Florigene, has his way blue roses will no longer be a rare find, but a genetically engineered feat, The Economist reports. Also, Natalia Dudareva at Purdue University is restoring snapdragons and petunias’ lost fragrance by turning on dormant transcription factors, adds this futuristic Valentine’s Day story.

The Scan

Alzheimer's Risk Gene Among Women

CNN reports that researchers have found that variants in MGMT contribute to Alzheimer's disease risk among women but not men.

Still Hanging Around

The Guardian writes that persistent pockets of SARS-CoV-2 in the body could contribute to long COVID.

Through a Little Spit

Enteric viruses like norovirus may also be transmitted through saliva, not just the fecal-oral route, according to New Scientist.

Nature Papers Present Method to Detect Full Transcriptome, Viruses Infecting Asgard Archaea, More

In Nature this week: VASA-seq approach to detect full transcriptome, analysis of viruses infecting Asgard archaea, and more.