Mating is associated with immediate changes of the hydrocarbon profile of Leptothorax gredleri ant queens

Oppelt, Angelika and Heinze, Juergen (2009) Mating is associated with immediate changes of the hydrocarbon profile of Leptothorax gredleri ant queens. JOURNAL OF INSECT PHYSIOLOGY, 55 (7). pp. 624-628. ISSN 0022-1910, 1879-1611

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Abstract

While sexual communication is often characterized by attempted manipulation, both sexes agree about females reliably signalling their receptivity. Female sexuals of the ant Leptothorax gredleri quickly became unattractive to males after their first copulation. This loss of attractiveness coincided with almost immediate changes in their cuticular hydrocarbon (CHC) profiles. Already 30 min after mating, the CHC profiles of female sexuals had significantly lower relative amounts of branched alkanes and higher amounts of linear alkanes than those of unmated and freshly mated female sexuals. Discriminant analysis did not distinguish between the profiles of freshly mated and unmated female sexuals, suggesting that the extremely rapid modification of CHC profiles is not caused by males marking females with anti-aphrodisiac CHCs. Instead, the new profile is produced by the female sexuals themselves. In addition to making them unattractive to males, this change may also help mated female sexuals when seeking adoption into established colonies. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: EUSOCIAL HALICTINE BEE; CUTICULAR HYDROCARBONS; REPRODUCTIVE STATUS; SEX-PHEROMONE; MALACHURUM HYMENOPTERA; NESTMATE RECOGNITION; SOCIAL INSECTS; POISON GLAND; FORMICIDAE; FEMALES; Hymenoptera; Sexual communication; Chemical signalling; Cuticular hydrocarbons
Subjects: 500 Science > 590 Zoological sciences
Divisions: Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Sep 2020 05:18
Last Modified: 14 Sep 2020 05:18
URI: https://pred.uni-regensburg.de/id/eprint/28761

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