This Week in Cell

An international team led by investigators at the University of Montana used genome and transcriptome sequencing to untangle some of the genes involved in a three-way symbiotic relationship involving Tremblaya princeps bacteria that live inside mealybugs and another bacterial species that acts as an endosymbiont to some that bacteria. Results of the researchers' assessment suggest the mealybug genome houses 22 or more genes nabbed from bacteria through horizontal gene transfer.

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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.