Control of copula duration and sperm storage by female Queensland fruit flies

    Authors

    D. Perez-Staples; C. W. Weldon; P. Radhakrishnan; J. Prenter;P. W. Taylor

    Comments

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    Abbreviated Journal Title

    J. Insect Physiol.

    Keywords

    Mating termination; Copulation; Tephritidae; Bactrocera tryoni; Ventral; receptacle; Spermathecae; Repeatability; Copula control; Sperm ejection; YELLOW DUNG FLY; ANASTREPHA-SUSPENSA DIPTERA; CERATITIS-CAPITATA; DIPTERA; OPERATIONAL SEX-RATIO; DROSOPHILA-MELANOGASTER; SCATHOPHAGA-STERCORARIA; SCATOPHAGA-STERCORARIA; FERTILIZATION SUCCESS; RHAGOLETIS-JUGLANDIS; REMATING INHIBITION; Entomology; Physiology; Zoology

    Abstract

    Copula duration and sperm storage patterns can directly or indirectly affect fitness of male and female Insects Although both sexes have an interest in the outcome research has tended to focus on males To investigate female influences we compared copula duration and sperm storage of Queensland fruit fly females that were intact or had been incapacitated through decapitation or abdomen isolation We found that copulations were far longer when females had been incapacitated indicating that constraints imposed on copula duration by Intact females had been relaxed Repeatability of copula duration for males was very low regardless of female treatment and this is also consistent with strong female influence Number of sperm in the spermathecae was not influenced by female treatment suggesting that female abdominal ganglia control the transport of sperm to these long-term storage organs However more sperm were found in the ventral receptacles of incapacitated females compared to intact females Overall results implicate cephalic ganglia in regulation of copula duration and short-term sperm storage in the ventral receptacle and abdominal ganglia in regulation of long-term sperm storage in the spermathecae (C) 2010 Elsevier Ltd All rights reserved

    Journal Title

    Journal of Insect Physiology

    Volume

    56

    Issue/Number

    12

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    1755

    Last Page

    1762

    WOS Identifier

    WOS:000284568800006

    ISSN

    0022-1910

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