A sensory system for mating in octopus

• 成果类型: Article
• 署名作者: Villar, Pablo S.; Jiang, Hao; Shugaeva, Tatiana; Berdan, Emma L.; Kulkarni, Arpita; Hiroi, Makoto; Masucci, Giovanni; Reiter, Sam; Lindahl, Erik; Howard, Rebecca J.; Hibbs, Ryan E.; Bellono, Nicholas W.
• 署名单位: Harvard University; University of California System; University of California San Diego; Royal Institute of Technology; Harvard University; Harvard T.H. Chan School of Public Health; Harvard University; Harvard Medical School; Okinawa Institute of Science & Technology Graduate University; Stockholm University; Linkoping University; University of Illinois System; University of Illinois Urbana-Champaign
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8075; 1095-9203
• DOI: 10.1126/science.aec9652
• 发表日期: 2026-04-02
• 页码: 96-101
• 关键词: VULGARIS; responses; drive

摘要

Sensory systems for mate recognition maintain species boundaries and influence diversification. Thus, uncovering how molecules and receptors evolve to mediate this critical function is essential to understanding biodiversity. Male octopuses use a specialized arm called the hectocotylus to identify females and navigate their internal organs to reach the oviduct and deliver sperm. Here, we discovered that the hectocotylus is a dual sensory and mating organ that uses contact-dependent chemosensation of progesterone, a conserved ovarian hormone. We identified chemotactile receptors for progesterone and resolved the structural basis for their evolution from ancestral neurotransmitter receptors and subsequent expansion and tuning across cephalopods. These findings reveal principles by which sensory innovations shape reproductive behavior and suggest mechanisms for how sensory evolution contributes to the diversification of life.