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RNA decay filters transposable-element-driven gene innovation

A bioRxiv preprint reports that nonsense-mediated decay suppresses many RNA isoforms created when transposable-element sequences become part of genes. The findings suggest this cellular quality-control system helps regulate a pool of potential evolutionary novelty.

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Japanese field samples reveal gene flow between two pine nematodes

A bioRxiv preprint reports nine high-confidence hybrids between invasive Bursaphelenchus xylophilus and native B. mucronatus in Japanese field samples. Genome-wide analyses identified both F1-like and advanced backcross-like individuals, including some missed by a single-locus test.