This Week in PNAS

In this week's PNAS Early Edition, a public-private research consortium of investigators at plant research institutes as well as beer and whiskey producers across Europe reports its mapping of 15 traits across about 500 barley crop cultivars genotyped with more than 1,500 SNPs. The team found "high levels of linkage disequilibrium within and between chromosomes" and "common alleles of high penetrance" across the cultivars.

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A phylogenetic analysis indicates two venomous Australian spiders are more closely related than thought, the International Business Times reports.

Technology Review reports that 2017 was the year of consumer genetic testing and that it could spur new analysis companies.

In Science this week: CRISPR-based approach for recording cellular events, and more.

A new company says it will analyze customers' genes to find them a suitable date, though Smithsonian magazine says the science behind it might be shaky.