ISSN:
1573-1561
Keywords:
Pine engraver beetle
;
Ips pini
;
Coleoptera
;
Scolytidae
;
(+)-ipsdienol
;
(−)-ipsdienol
;
pheromone receptor
;
response specificity
;
electrophysiology
;
interpopulational hybrid
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Electrophysiological studies of pheromone receptor cells keyed to ispdienol were performed in laboratory-raised hybrids of the eastern and western populations of the pine engraver,Ips pini. As previously shown in the parental beetles, the receptor cells keyed to ipsdienol could be classified as two distinct types: one keyed to (+)- and one to (−)-ipsdienol. None of the 20 ipsdienol cells recorded from F1 hybrids were of an intermediate type. Recordings of the summated receptor responses (EAGs) showed no significant difference between parental beetles and hybrids. Similar results were obtained in reciprocal crosses, eastern females with western males and the reverse. Thus, there was no indication that sex-linked alleles determined the specificity of the ipsdienol receptor cell. The ratio between (+) and (−) cells was 14∶6 in the hybrids compared to 1∶12 in the western and 9∶12 in the eastern populations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01020670
