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Plant Phylogeny Made Easy (Sort of)

British researchers have identified the barcode gene for plants, the BBC reports. Co-author Vincent Savolainen, of Imperial College London and the Royal Botanic Gardens, Kew, found that matK, a small gene located in the chloroplast of the plant, has enough variation to identify between species but is nearly identical in plants of the same species. While the gene won't be able to tell every plant on the planet apart, especially in light of how often cross-breading happens among plants, it'll get as close as distinguishing between 90% of them, the researchers say.

The Scan

Fertility Fraud Found

Consumer genetic testing has uncovered cases of fertility fraud that are leading to lawsuits, according to USA Today.

Ties Between Vigorous Exercise, ALS in Genetically At-Risk People

Regular strenuous exercise could contribute to motor neuron disease development among those already at genetic risk, Sky News reports.

Test Warning

The Guardian writes that the US regulators have warned against using a rapid COVID-19 test that is a key part of mass testing in the UK.

Science Papers Examine Feedback Mechanism Affecting Xist, Continuous Health Monitoring for Precision Medicine

In Science this week: analysis of cis confinement of the X-inactive specific transcript, and more.