| Title: | Diel Patterns of Pheromone Release by Male Sea Lamprey |
| Author(s): | Fissette SD; Bussy U; Huerta B; Brant CO; Li K; Johnson NS; Li W; |
| Address: | "Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA. Mars Symbioscience, 20425 Seneca Meadows Parkway, Germantown, MD 20876, USA. DCU Water Institute, School of Chemical Science, Dublin City University, Dublin D09 Y5NO, Ireland. U.S. Geological Survey, Great Lakes Science Center, 1451 Green Rd, Ann Arbor, MI 48105, USA. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China. U.S. Geological Survey, Great Lakes Science Center, Hammond Bay Biological Station, 11188 Ray Rd., Millersburg, MI 49759, USA" |
| ISSN/ISBN: | 1557-7023 (Electronic) 1540-7063 (Linking) |
| Abstract: | "Costs to producing sexual signals can create selective pressures on males to invest signaling effort in particular contexts. When the benefits of signaling vary consistently across time, males can optimize signal investment to specific temporal contexts using biological rhythms. Sea lamprey, Petromyzon marinus, have a semelparous life history, are primarily nocturnal, and rely on pheromone communication for reproduction; however, whether male investment in pheromone transport and release matches increases in spawning activity remains unknown. By measuring (1) 3keto-petromyzonol sulfate (3kPZS, a main pheromone component) and its biosynthetic precursor PZS in holding water and tissue samples at six points over the course of 24 hours and (2) 3kPZS release over the course of several days, we demonstrate that 3kPZS release exhibits a consistent diel pattern across several days with elevated pheromone release just prior to sunset and at night. Trends in hepatic concentrations and circulatory transport of PZS and 3kPZS were relatively consistent with patterns of 3kPZS release and suggest the possibility of direct upregulation in pheromone transport and release rather than observed release patterns being solely a byproduct of increased behavioral activity. Our results suggest males evolved a signaling strategy that synchronizes elevated pheromone release with nocturnal increases in sea lamprey behavior. This may be imperative to ensure that male signaling effort is not wasted in a species having a single, reproductive event" |
| Keywords: | Animals Male *Petromyzon Pheromones Reproduction *Sex Attractants; |
| Notes: | "MedlineFissette, Skye D Bussy, Ugo Huerta, Belinda Brant, Cory O Li, Ke Johnson, Nicholas S Li, Weiming eng Research Support, Non-U.S. Gov't England 2021/09/04 Integr Comp Biol. 2021 Nov 17; 61(5):1795-1810. doi: 10.1093/icb/icab190" |
