Rogers, DW;
Chapman, T;
Fowler, K;
Pomiankowski, A;
(2005)
Mating-induced reduction in accessory reproductive organ size in the stalk-eyed fly Cyrtodiopsis dalmanni - art. no. 36.
BMC Evolutionary Biology
, 5
, Article 37. 10.1186/1471-2148-5-37.
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Abstract
Background: Internal reproductive organ size is an important determinant of male reproductive success. While the response of testis length to variation in the intensity of sperm competition is well documented across many taxa, few studies address the importance of testis size in determining other components of male reproductive success ( such as mating frequency) or the significance of size variation in accessory reproductive organs. Accessory gland length, but not testis length, is both phenotypically and genetically correlated with male mating frequency in the stalk-eyed fly Cyrtodiopsis dalmanni. Here we directly manipulate male mating status to investigate the effect of copulation on the size of both the testes and the accessory glands of C. dalmanni.Results: Accessory gland length was positively correlated with male mating frequency. Copulation induced a significant decrease in accessory gland size. The size of the accessory glands then recovered slowly over the next 8 - 48 hours. Neither testis length nor testis area was altered by copulation.Conclusion: These results reveal that the time course of accessory gland recovery corresponds to field observations of mating behaviour and suggest that accessory gland size may limit male mating frequency in C. dalmanni.
| Type: | Article |
|---|---|
| Title: | Mating-induced reduction in accessory reproductive organ size in the stalk-eyed fly Cyrtodiopsis dalmanni - art. no. 36 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1186/1471-2148-5-37 |
| Publisher version: | http://dx.doi.org/10.1186/1471-2148-5-37 |
| Language: | English |
| Additional information: | © 2005 Rogers et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | TESTIS SIZE, SPERM COMPETITION, BODY-SIZE, ARTIFICIAL SELECTION, DUNG FLY, DROSOPHILA, DIOPSIDAE, DIPTERA, GLAND, FREQUENCY |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment |
| URI: | https://discovery.ucl.ac.uk/id/eprint/183612 |
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