Phenotypic plasticity in female mate choice behavior is mediated by an interaction of direct and indirect genetic effects in <i>Drosophila melanogaster</i>

Filice, David C. S.; Long, Tristan A. F.

doi:10.1002/ece3.2954

Cited by 23 publications

(13 citation statements)

References 88 publications

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“…(e.g. [21]). In this study, we showed that males who have the greatest impact on their mates' fecundity become less attractive to females after a single mating, which may explain a reduced paternity share on days 2 and 3.…”

Section: Discussionmentioning

confidence: 99%

Genetic trade-offs between male reproductive traits inDrosophila melanogaster

Filice

Long

2018

Biol. Lett.

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In Drosophila melanogaster , males engage in both extensive pre- and post-copulatory competition for the opportunity to mate with females and subsequently sire offspring. The selection pressure for increased male reproductive success has resulted in the evolution of a wide diversity of sexual traits. However, despite strong selection, individuals often exhibit considerable phenotypic variation in the expression of these traits, and it is unclear if any of this variation is owing to underlying genetic trade-offs. Here, using hemiclonal flies, we examine how male reproductive success covaries with their ability to induce long-term stimulation of oogenesis and oviposition in their mates, and how this relationship may change over time. We found that males from hemiclone lines with phenotypes that were more successful in a short-term reproductive ‘scramble’ environment were less effective at stimulating long-term fecundity in females. Furthermore, we observed that males from hemiclone lines which showed the most improvement over a longer reproductive interaction period also tended to stimulate higher long-term fecundity in females. Together, these results indicate the presence of genetic trade-offs between different male reproductive traits and offer insights into the maintenance of their variation.

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Section: Discussionmentioning

confidence: 99%

Genetic trade-offs between male reproductive traits inDrosophila melanogaster

Filice

Long

2018

Biol. Lett.

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“…() previously called these treatments “Monogamous (M)” and “Promiscuous (P),” we refer to them as low (L) and high (H) sexual selection treatments, as these classifications more accurately describe the conditions under which each population evolved. Promiscuity implies mating indiscriminately at random, whereas female remating patterns in D. melanogaster are known to shape by nonrandom factors (Byrne & Rice, ; Dickson, ; Dukas, ; Edward & Chapman, ; Filice & Long, ). Experimental evolution studies that manipulate mating systems (monogamy vs. polyandry/polygyny/promiscuity) do so in order to test the effects of adaptation under low and high levels of sexual selection.…”

Section: Methodsmentioning

confidence: 99%

The effects of a bacterial challenge on reproductive success of fruit flies evolved under low or high sexual selection

Nystrand

Cassidy

Dowling

2018

Ecology and Evolution

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The capacity of individuals to cope with stress, for example, from pathogen exposure, might decrease with increasing levels of sexual selection, although it remains unclear which sex should be more sensitive. Here, we measured the ability of each sex to maintain high reproductive success following challenges with either heat‐killed bacteria or procedural control, across replicate populations of Drosophila melanogaster evolved under either high or low levels of sexual selection. Our experiment was run across four separate sampling blocks. We found an interaction between bacterial treatment, sexual selection treatment, and sampling block on female reproductive success. Specifically, and only in the fourth block, we observed that bacterial‐challenged females that had evolved under high sexual selection, exhibited lower reproductive success than bacterial‐challenged females that had evolved under low sexual selection. Furthermore, we could trace this block‐specific effect to a reduction in viscosity of the ovipositioning substrate in the fourth block, in which females laid around 50% more eggs than in previous blocks. In contrast, patterns of male reproductive success were consistent across blocks. Males that evolved under high sexual selection exhibited higher reproductive success than their low‐selection counterparts, regardless of whether they were subjected to a bacterial challenge or not. Our results are consistent with the prediction that heightened sexual selection will invoke male‐specific evolutionary increases in reproductive fitness. Furthermore, our findings suggest that females might pay fitness costs when exposed to high levels of sexual selection, but that these costs may lie cryptic, and only be revealed under certain environmental contexts.

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“…2013), offer new insight into sources of variation. Indirect genetic effects (i.e., how the genotype of one individual alters the phenotype of another) can play a major role in mate choice, as they do in many other social contexts, but are just beginning to be empirically explored within the field of sexual selection (Filice and Long 2017; Trösch et al. 2017).…”

Section: Mate Choice At a Crossroadsmentioning

confidence: 99%

“…Additionally, new theoretical approaches, for example, incorporating multimodal traits (Ronald et al 2012;Wilson et al 2013) and influences of the social environment (Bailey and Moore 2012;Rodríguez et al 2013), offer new insight into sources of variation. Indirect genetic effects (i.e., how the genotype of one individual alters the phenotype of another) can play a major role in mate choice, as they do in many other social contexts, but are just beginning to be empirically explored within the field of sexual selection (Filice and Long 2017;Trösch et al 2017).…”

Section: Mate Choice At a Crossroadsmentioning

confidence: 99%