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Reduction of Female Mating Receptivity After Injection of Male-Derived Extracts in Trigonotylus caelestialium (Heteroptera:Miridae)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
2013 (English)In: Annals of the Entomological Society of America, ISSN 0013-8746, E-ISSN 1938-2901, Vol. 106, no 2, 258-264 p.Article in journal (Refereed) Published
Abstract [en]

The effects of male-derived extracts on female receptivity to remating were investigated in Trigonotylus caelestialium (Kirkaldy) (Heteroptera: Miridae). The aqueous extracts of male reproductive tracts were observed to reduce receptivity both at 3 h and at 1 d after injection into the abdomens of females. Next, ultrafiltration was used to divide the aqueous extracts of the male reproductive tracts into three molecular-weight (MW) fractions: <3.5 kDa, 3.5-14 kDa, and >14 kDa. The filtrate containing the MW substances <3.5 kDa reduced female receptivity 3 h after injection, whereas the fraction containing MW substances >14 kDa inhibited receptivity at 1 and 2 d after injection. Finally, the male reproductive tract organs were divided into the accessory glands, testes, and the remaining reproductive organs, including the seminal vesicles. Aqueous extracts of the accessory glands reduced the receptivity of females both at 3 h and 2 d after injection, whereas those of the testes decreased the receptivity of females at 3 h after injection. Together, the results indicate that more than one mechanism may be involved in the effects of male-derived substances on female receptivity in T. caelestialium. The findings suggest that low-MW male-derived substances in the accessory glands and testes cause short-term inhibition and that the high-MW substances in the accessory gland inhibit female mating at a later period.

Place, publisher, year, edition, pages
2013. Vol. 106, no 2, 258-264 p.
Keyword [en]
accessory gland, Miridae, remating inhibition, seminal fluid, ultrafiltration
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-198393DOI: 10.1603/AN12079ISI: 000316299600015OAI: oai:DiVA.org:uu-198393DiVA: diva2:616157
Available from: 2013-04-15 Created: 2013-04-15 Last updated: 2017-12-06Bibliographically approved

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Yamane, Takashi

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