This Week in PLoS

Scientists at the University of Dundee in the UK have used computational analysis to study small, noncoding RNAs, particularly to determine whether miRNAs and small nucleolar RNAs are evolutionarily related. In their work, they found twenty snoRNA-like miRNA precursors whose surrounding genomic regions are very similar to those of snoRNAs.

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CNN reports that researchers have tied a new variant to opioid addiction risk.

Organoids derived from patients' tumors may help determine what chemotherapy treatment patients would benefit from, according to New Scientist.

An initiative from GenomeAsia 100K hopes to increase the number of South Asians in genetic research, according to NBC News.

In Science this week: genomic analysis of ancient and modern horses indicates population turnover, and more.