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A new cell–cell communication system in Streptococcus salivarius, a human gut commensal, discriminates between close signaling molecules to specifically produce bacteriocin-based antimicrobials and disconnects it from foreign DNA acquisition.

In moths, male receptors tuned to type I female pheromones may not have a monophyletic origin.

Differing from its ortholog in Helicoverpa armigera, pheromone receptor HassOr14b is tuned to the major sex pheromone component in H. assulta, and two amino acids in the intracellular domain determine their ligand selectivity.

Pheromones activate excitatory and inhibitory pathways that are integrated to guide mating decisions in Drosophila melanogaster.

Unexpected structural diversity of nematode small molecules, as revealed by high-resolution phylogenetic analysis, suggests recurrent biochemical innovation, a pattern that is probably typical across animals.

In response to starvation, C. elegans converts a favorable pheromone that induces aggregation to an unfavorable one that induces a stress-resistant larval stage, thereby altering its chemical message without having to synthesize new pheromones de novo.

A fatty acyl reductase gene family expansion in the Hymenoptera crown group led to recruitment of novel pheromone-biosynthetic enzymes and is linked to evolution of pheromone marking behavior.

For Drosophila melanogaster, the scent of alcohol—normally associated with preferred egg-laying sites—potentiates a male pheromone signal, thereby increasing the aggressive competition between males for the reproductive resource.

A small RNA molecule called miR-124 controls pheromone production and sexual behaviour in Drosophila by regulating sex-specific gene expression in males.

Triacylglycerides found in the males of 11 species of Drosophila form a largely overlooked, novel, sex-specific class of pheromones that act to suppress courtship behaviour.