Material and genetic benefits of female multiple mating and polyandry

Fedorka, Kenneth M.; Mousseau, Timothy A.

doi:10.1006/anbe.2002.3052

Cited by 181 publications

(157 citation statements)

References 42 publications

(45 reference statements)

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“…Baker et al , 2001;Drnevich et al , 2001 ) and substances in the ejaculate may induce egg production (see, for example, Chapman et al , 1998 ) and stimulate oviposition ( Leopold, 1976;Eberhard, 1996 ). Therefore, in many studies demonstrating direct benefits from nuptial gifts ( Hayashi, 1998;Ryne et al , 2001;Fedorka & Mousseau, 2002;Rooney & Lewis, 2002 ; for earlier papers see Vahed, 1998 ) it is difficult to disentangle benefits from nuptial feeding from other effects resulting from multiple mating or increased sperm transfer (but see Gwynne, 1984;Steele, 1986;Simmons, 1988Simmons, , 1990Brown, 1997;Reinhold, 1999 ). In this study, using the scorpionfly Panorpa cognata (Ramb.)…”

Section: Introductionmentioning

confidence: 97%

Nuptial food gifts influence female egg production in the scorpionfly Panorpa cognata

Engqvist

2007

Ecological Entomology

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. 1. Before copulation, male Panorpa cognata scorpionflies offer females a salivary secretion, which is consumed by the female during copulation. It has previously been demonstrated that this nuptial food gift functions as mating effort by increasing male attractiveness and by increasing ejaculate transfer during copulation.2. In this study, the effect of saliva consumption on female reproductive output was investigated, and thus the possibility that nuptial food gifts also serve as paternal investment. The experimental design enabled the effect of nuptial gift consumption to be disentangled from other possible effects of multiple mating or increased copula duration.3. The results showed that saliva consumption increases female egg production by on average 8% (4.5 eggs) per consumed salivary mass, whereas mean egg weight was not influenced.4. These results have important implications for the evolution and maintenance of both male nuptial gifts and female polyandry in this and other species.

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Section: Introductionmentioning

confidence: 97%

Nuptial food gifts influence female egg production in the scorpionfly Panorpa cognata

Engqvist

2007

Ecological Entomology

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“…As remating likely benefits females (Jennions and Petrie, 2000;Zeh and Zeh, 2001;Fedorka and Mousseau, 2002;Slatyer et al, 2012; but see Bilde et al, 2009), the copulatory plug may exist as a source of sexual conflict. Consistent with a hypothesis of sexual conflict (Stockley, 1997), recently mated females upregulate proteases thought to assist in plug degradation (Kelleher and Pennington, 2009;Dean et al, 2011), whereas male seminal fluid is enriched for protease inhibitors , although proteases and their inhibitors have additional roles in reproduction (Wolfner, 2002;Kawano et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Genetic and phenotypic influences on copulatory plug survival in mice

et al. 2015

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Across a diversity of animals, male seminal fluid coagulates upon ejaculation to form a hardened structure known as a copulatory plug. Previous studies suggest that copulatory plugs evolved as a mechanism for males to impede remating by females, but detailed investigations into the time course over which plugs survive in the female's reproductive tract are lacking. Here, we cross males from eight inbred strains to females from two inbred strains of house mice (Mus musculus domesticus). Plug survival was significantly affected by male genotype. Against intuition, plug survival time was negatively correlated with plug size: long-lasting plugs were small and relatively more susceptible to proteolysis. Plug size was associated with divergence in major protein composition of seminal vesicle fluid, suggesting that changes in gene expression may play an important role in plug dynamics. In contrast, we found no correlation to genetic variation in the protein-coding regions of five genes thought to be important in copulatory plug formation (Tgm4, Svs1, Svs2, Svs4 and Svs5). Our study demonstrates a complex relationship between copulatory plug characteristics and survival. We discuss several models to explain unexpected variation in plug phenotypes.

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“…Therefore, there must also be positive effects associated with polyandry. These positive effects include compensation for mating with a genetically incompatible, inferior, or infertile male and an increase in genetic variability among the offspring ( [16,17], and references therein). Moreover, substances in the male ejaculate (nuptial gifts) can increase female lifespan [18,19], female fecundity (see [20] for an overview), and offspring fitness [21,22].…”

Section: Introductionmentioning

confidence: 99%

The Cost of Mating: Influences of Life History Traits and Mating Strategies on Lifespan in Two Closely RelatedYponomeutaSpecies

Bakker

Louçã

Roessingh

et al. 2011

International Journal of Zoology

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Theory predicts that in monandrous butterfly species males should not invest in a long lifespan because receptive females quickly disappear from the mating population. In polyandrous species, however, it pays for males to invest in longevity, which increases the number of mating opportunities and thus reproductive fitness. We tested an extension of this idea and compared male and female lifespan of two closely related Yponomeuta species with different degree of polyandry. Our results confirmed the theoretical prediction that male lifespan is fine-tuned to female receptive lifespan; once-mated males and females of both polyandrous species had an equal lifespan. However, the degree of polyandry was not reflected in male relative to female lifespan. The observed similar female and male lifespan could largely be attributed to a dramatic reduction of female lifespan after mating.

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Material and genetic benefits of female multiple mating and polyandry

Cited by 181 publications

References 42 publications

Nuptial food gifts influence female egg production in the scorpionfly Panorpa cognata

Nuptial food gifts influence female egg production in the scorpionfly Panorpa cognata

Genetic and phenotypic influences on copulatory plug survival in mice

The Cost of Mating: Influences of Life History Traits and Mating Strategies on Lifespan in Two Closely RelatedYponomeutaSpecies

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