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Mating structure and male production in the giant hornet Vespa mandarinia (Hymenoptera: Vespidae)

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Title: Mating structure and male production in the giant hornet Vespa mandarinia (Hymenoptera: Vespidae)
Authors: Takahashi, Jun-ichi Browse this author
Akimoto, Shin'ichi Browse this author
Martin, Stephen J. Browse this author
Tamukae, Masato Browse this author
Hasegawa, Eisuke Browse this author →KAKEN DB
Keywords: mating number
Vespa mandarinia
worker reproduction
Issue Date: 25-Aug-2004
Publisher: Japanese Society of Applied Entomology and Zoology
Journal Title: Applied Entomology and Zoology
Volume: 39
Issue: 2
Start Page: 343
End Page: 349
Publisher DOI: 10.1303/aez.2004.343
Abstract: Queen mating frequency, genetic relatedness between workers and worker reproduction were estimated in Vespa mandarinia by microsatellite DNA markers. Of 20 colonies examined, eighteen contained queens inseminated by a single male and two colonies contained queens inseminated by two males. The estimated effective number of matings was 1.03±0.023 (mean±SE) with 85% of the offspring of the two multiply-mated queens being sired by one of the two males. The genetic relatedness between workers was 0.738±0.008, which was almost identical to the predicted value of 0.75 under monogyny and monandry. For this low paternity, kin selection theory predicts a potential conflict between queens and workers over male production. To learn whether males are derived from queens or workers, 400 males from 20 colonies were genotyped at four microsatellite loci. We found that queens produced all males. This finding was confirmed by the observation that 4,317 dissected workers had not developed ovaries. There was no relationship between queen mating frequency and the frequency of worker reproduction, and workers did not produce any male offspring. These results strongly suggest that male production dominated by queens in V. mandarinia is possibly due to worker policing.
Rights: 著作権は日本応用動物昆虫学会に帰属します。本文データは、日本応用動物昆虫学会の許諾に基づきJ-STAGEから複製したものです。
Type: article
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長谷川 英祐

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