IPS pini: The basis for interpopulational differences in pheromone biology

摘要: Ips pini from Idaho (ID) produce (−)-ipsdienol and respond to it in the laboratory.I. New York (NY) (+) a 65∶35 ratio much more strongly than (−) enantiomer. Response byI. pini-ID laboratory was inhibited by (+)-ipsdienol, while field response pini-NY optimal 50:50 mixture of (−)-ipsdienol. This differential production enantiomers ipsdienol is sufficient account for populational specificity observed earlier experiments confirmed our current work. Reciprocal hybrids NY IDI. populations did not differ their patterns attraction response; those both types F1 were similar beetles. Thus, appears that (+)-ipsdienol produced necessary maximum response, but this supposition tested. The genes controlling pheromone biology ofI. are sex linked. Since previous whole-antenna single-cell electrophysiological data show receptor systems two virtually identical, behavior seems be governed central nervous system rather characteristics olfactory receptors.