Female x male interactions in Drosophila sperm competition.

  title={Female x male interactions in Drosophila sperm competition.},
  author={Andrew G. Clark and David J. Begun and Timothy R. Prout},
  volume={283 5399},
In several organisms, the success of a male's sperm in multiply inseminated females depends on the male's genotype. In Drosophila, the female also plays a role in determining which sperm are successful. Pairwise tests among six isogenic lines of Drosophila melanogaster were performed to determine whether there is a genotype-specific interaction in the success of sperm. The success of a particular male's sperm was found to depend on the genotype of the female with which he mates, providing… 

Investigating the Female's Role in Sperm Competition in Drosophila Melanogaster

Results from these experiments provide a clearer picture of the genes and mechanisms involved in the female control of sperm competition outcomes and sperm dynamics.

Sperm-Female Coevolution in Drosophila

Using populations of Drosophila melanogaster selected for divergent sperm length or female sperm-storage organ length, experimentally show that male fertilization success is determined by an interaction between sperm and female morphology.

Female genetic contributions to sperm competition in Drosophila melanogaster

A functional role for the female’s nervous system is established in the process of sperm competition and the understanding of the genetic, neuronal and mechanistic basis of female responses to multiple matings is expanded.

Female Genetic Contributions to Sperm Competition in Drosophila melanogaster

It is proposed that specific neurons in the female’s nervous system play a functional role in sperm competition and are used to sense, and integrate, signals from courtship or ejaculates, to modulate sperm competition outcome accordingly.

Assessing differences in sperm competitive ability in Drosophila.

An approach is described that helps to interrogate the role of different genetic factors that putatively underlie the phenomenon of sperm competitive ability in D. melanogaster.


It is reported that males from third-chromosome isogenic lines demonstrated significant genetic variation in male reproductive performance and in the longevity of their mates and alternative hypotheses for the cause of the induced variation in female longevity are discussed.

Female remating, sperm competition and sexual selection in Drosophila.

This work examined female remating with respect to sperm competition and sexual selection in Drosophila and addressed the possible benefits for females, and reviewed the role of accessory gland fluid in remating.

Female mediation of competitive fertilization success in Drosophila melanogaster

The results demonstrate that females do not simply provide a static arena for sperm competition but rather play an active and pivotal role in postcopulatory processes, and resolve the adaptive significance of genetic variation in female-mediated mechanisms of sperm handling.

Natural genetic variation in male reproductive genes contributes to nontransitivity of sperm competitive ability in Drosophila melanogaster

This may be the first study that identifies the genes contributing to nontransitivity among males and further highlights that ‘rock‐paper‐scissors’ games could be an important evolutionary force maintaining genetic variation in natural populations.



Sperm (ejaculate) competition in Drosophila melanogaster, and the reproductive value of females to males in relation to female age and mating status

1 In double mating experiments with Drosophila melanogaster in which one male had been irradiated, it was confirmed that sperm displacement is extensive, i.e. the second male to mate displaces most

Cost of mating in Drosophila melanogaster females is mediated by male accessory gland products

It is demonstrated here that seminal fluid products from the main cells of the male accessory gland are responsible for the cost of mating in females, and that increasing exposure to these products increases female death rate.

Conspecific sperm precedence in Drosophila

Evidence for cryptic reproductive divergence among three sibling species of Drosophila that leads to a form of postmating isolation is provided, indicating that females mediate sperm competition, and that second-male sperm precedence is not an automatic consequence of the mechanics of sperm storage.

Variation in sperm displacement and its association with accessory gland protein loci in Drosophila melanogaster.

A screen for variation in sperm displacement among 152 lines of Drosophilia melanogaster that were made homozygous for second and/or third chromosomes recovered from natural populations found no correlation between the able to displace resident sperm and the ability to resist being displaced by subsequent sperm.


It is shown that when Drosophila melanogaster females are mated twice, the semen of the second male causes a reduction of the effective number of resident sperm from the previous mating, indicating that a sperm‐incapacitation process plays a role in the well‐documented phenomenon of sperm displacement (last‐male advantage) in this species.

Multiple Insemination and Male Sexual Selection in Natural Populations of Drosophila pseudoobscura

  • G. Cobbs
  • Biology
    The American Naturalist
  • 1977
Estimates of effective mating frequency of male genotypes suggest that one of the samples came from a population in which there was nonrandom mating.

Male fitness increases when females are eliminated from gene pool: implications for the Y chromosome.

  • W. Rice
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1998
The results of these experiments suggest that opposing selection between the sexes may substantially interfere with sex-specific adaptation and demonstrate how intersexual evolutionary conflict can lead to perpetual degeneration of the Y via genetic hitchhiking of deleterious mutations.


Males of some invertebrate species transfer large ejaculates, and many of the substances contained therein are incorporated by females into their somatic and ovarian tissues. These incorporated

Polymorphism in genes that influence sperm displacement.

A one-locus model in which allelic variants have pleiotropic effects on fecundity and mating ability in addition to sperm displacement is considered, and this model can admit more than one stable polymorphism, and it finds conditions for protected polymorphism.