NEW YORK (GenomeWeb) – The largest ever genome-wide association study of lifetime cannabis use has identified several genomic regions related to the risk of taking the drug. The loci overlap with the genetics of other substance use and mental health traits, such as smoking, alcohol use, and risk-taking behavior, and the study revealed a causal influence of schizophrenia risk on cannabis use.

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Though many details have yet to be worked out, the draft deal for the UK's withdrawal from the EU is giving researchers some hints for what they can expect, Nature News says.

DNA testing has solved a 100-year-old mystery contained in the skull and teeth samples of a now-extinct monkey that once inhabited Jamaica, Gizmodo reports.

As the UN ponders a ban on gene drives, one malaria researcher says there are less dramatic ways to fight the disease in Africa than unleashing GM mosquitoes on a whole continent.

In Nature this week: an improved reference genome of the Aedes aegypti mosquito, genomes of four species of truffles, and more.