No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.

<h4>Background</h4>Multiple mating by female insects is widespread, and the explanation(s) for repeated mating by females has been the subject of much discussion. Females may profit from mating multiply through direct material benefits that increase their own reproductive output, or indi...

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Autores principales:	Elisabeth Harley, Kevin Fowler, Samuel Cotton
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0b63fdf67f3d42cb84f7af56f3992c7d
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spelling	oai:doaj.org-article:0b63fdf67f3d42cb84f7af56f3992c7d2021-11-18T07:01:48ZNo detectable fertility benefit from a single additional mating in wild stalk-eyed flies.1932-620310.1371/journal.pone.0014309https://doaj.org/article/0b63fdf67f3d42cb84f7af56f3992c7d2010-12-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21179210/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Multiple mating by female insects is widespread, and the explanation(s) for repeated mating by females has been the subject of much discussion. Females may profit from mating multiply through direct material benefits that increase their own reproductive output, or indirect genetic benefits that increase offspring fitness. One particular direct benefit that has attracted significant attention is that of fertility assurance, as females often need to mate multiply to achieve high fertility. This hypothesis has never been tested in a wild insect population.<h4>Methodology/principal findings</h4>Female Malaysian stalk-eyed flies (Teleopsis dalmanni) mate repeatedly during their lifetime, and have been shown to be sperm limited under both laboratory and field conditions. Here we ask whether receiving an additional mating alleviates sperm limitation in wild females. In our experiment one group of females received a single additional mating, while a control group received an interrupted, and therefore unsuccessful, mating. Females that received an additional mating did not lay more fertilised eggs in total, nor did they lay proportionately more fertilised eggs. Female fertility declined significantly through time, demonstrating that females were sperm limited. However, receipt of an additional mating did not significantly alter the rate of this decline.<h4>Conclusions/significance</h4>Our data suggest that the fertility consequences of a single additional mating were small. We discuss this effect (or lack thereof), and suggest that it is likely to be attributed to small ejaculate size, a high proportion of failed copulations, and the presence of X-linked meiotic drive in this species.Elisabeth HarleyKevin FowlerSamuel CottonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 12, p e14309 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Elisabeth Harley Kevin Fowler Samuel Cotton No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
description	<h4>Background</h4>Multiple mating by female insects is widespread, and the explanation(s) for repeated mating by females has been the subject of much discussion. Females may profit from mating multiply through direct material benefits that increase their own reproductive output, or indirect genetic benefits that increase offspring fitness. One particular direct benefit that has attracted significant attention is that of fertility assurance, as females often need to mate multiply to achieve high fertility. This hypothesis has never been tested in a wild insect population.<h4>Methodology/principal findings</h4>Female Malaysian stalk-eyed flies (Teleopsis dalmanni) mate repeatedly during their lifetime, and have been shown to be sperm limited under both laboratory and field conditions. Here we ask whether receiving an additional mating alleviates sperm limitation in wild females. In our experiment one group of females received a single additional mating, while a control group received an interrupted, and therefore unsuccessful, mating. Females that received an additional mating did not lay more fertilised eggs in total, nor did they lay proportionately more fertilised eggs. Female fertility declined significantly through time, demonstrating that females were sperm limited. However, receipt of an additional mating did not significantly alter the rate of this decline.<h4>Conclusions/significance</h4>Our data suggest that the fertility consequences of a single additional mating were small. We discuss this effect (or lack thereof), and suggest that it is likely to be attributed to small ejaculate size, a high proportion of failed copulations, and the presence of X-linked meiotic drive in this species.
format	article
author	Elisabeth Harley Kevin Fowler Samuel Cotton
author_facet	Elisabeth Harley Kevin Fowler Samuel Cotton
author_sort	Elisabeth Harley
title	No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
title_short	No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
title_full	No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
title_fullStr	No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
title_full_unstemmed	No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
title_sort	no detectable fertility benefit from a single additional mating in wild stalk-eyed flies.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/0b63fdf67f3d42cb84f7af56f3992c7d
work_keys_str_mv	AT elisabethharley nodetectablefertilitybenefitfromasingleadditionalmatinginwildstalkeyedflies AT kevinfowler nodetectablefertilitybenefitfromasingleadditionalmatinginwildstalkeyedflies AT samuelcotton nodetectablefertilitybenefitfromasingleadditionalmatinginwildstalkeyedflies
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No detectable fertility benefit from a single additional mating in wild stalk-eyed flies.

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