Sexual selection in fungi

  title={Sexual selection in fungi},
  author={Bart P. S. Nieuwenhuis and Duur K. Aanen},
  journal={Journal of Evolutionary Biology},
The significance of sexual selection, the component of natural selection associated with variation in mating success, is well established for the evolution of animals and plants, but not for the evolution of fungi. Even though fungi do not have separate sexes, most filamentous fungi mate in a hermaphroditic fashion, with distinct sex roles, that is, investment in large gametes (female role) and fertilization by other small gametes (male role). Fungi compete to fertilize, analogous to ‘male‐male… 
Sexual selection in hermaphrodites, sperm and broadcast spawners, plants and fungi
A review ofSexual selection in simultaneous hermaphrodites, sperm- and broadcast spawners, plants and fungi reveals a range of mechanisms of sexual selection, operating primarily after gametes have been released, which are common in many of these groups and also quite possibly in more familiar organisms.
Sexual selection in a transparent worm : insights from fluorescent sperm
The results suggest that in M. lignano a large part of the variance observed in male reproductive success arises from two post-copulatory episodes of selection, sperm-transfer efficiency and sperm-fertilising efficiency, which disagree with the view that sexual selection mainly arises from differences in mating success.
Genetic Networks That Govern Sexual Reproduction in the Pezizomycotina
This review provides an overview of the known genetic networks and pathways that are involved in each major stage of the sexual cycle in filamentous ascomycete fungi.
Nuclear arms races: Experimental evolution for mating success in the mushroom-forming fungus Schizophyllum commune
Test the hypothesis that sexual selection can increase competitive fitness during mating, using experimental evolution in the mushroom-forming fungus Schizophyllum commune, and finds a correlation between the efficiency with which the female mycelium is accessed and fitness, providing additional circumstantial evidence for fitness change.
Invasion and Extinction Dynamics of Mating Types Under Facultative Sexual Reproduction
A population genetic null model of this reproductive system is described, and expressions for the stationary probability distribution of the number of mating types, the establishment probability of a newly arising mating type, and the mean time to extinction of a resident type are derived.
Invasion and extinction dynamics of mating types under facultative sexual reproduction
A population genetic null model of sexually reproducing isogamous species and expressions for the stationary probability distribution of the number of mating types, the establishment probability of a newly arising mating type and the mean time to extinction of a resident type yield results that results in higher extinction and lower invasion rates for an increasing number of residents.
The rate of facultative sex governs the number of expected mating types in isogamous species
A theoretical model is used to show that the distribution of mating type numbers can be explained by mutation rate, population size and the rate of sex, and shows that the empirical literature supports the role of drift and facultativeness of sex as a determinant of matingtype dynamics.
Oxygen, life forms, and the evolution of sexes in multicellular eukaryotes
It is proposed that various physiological adaptations to oxidative stress could have forged sessility versus motility, and consequently the evolution of sexual systems in multicellular animals, plants, and fungi, and concluded that different sexual systems evolved under the indirect physiological constraints of lifestyles.
The evolution of sex chromosomes in organisms with separate haploid sexes
  • S. ImmlerS. Otto
  • Biology
    Evolution; international journal of organic evolution
  • 2015
This work analyzes a model to investigate the evolution of linkage between fitness loci and the sex‐determining region in U/V species and predicts that the decay of recombination on the sex chromosomes and the addition of strata via fusions will be just as much a part of the Evolution of haploid sex chromosomes as in diploid sex chromosome systems.


Sexual selection and mating systems
  • S. Shuster
  • Biology
    Proceedings of the National Academy of Sciences
  • 2009
This empirical framework identifies selective forces and genetic architectures responsible for observed male-female differences, it compliments discoveries of nucleotide sequence variation and the expression of quantitative traits and is easier to test and interpret than frameworks emphasizing parental investment in offspring and its presumed evolutionary outcomes.
Sex in fungi.
As robust and diverse genetic models, fungi provide insights into the molecular nature of sex, sexual specification, and evolution to advance the understanding of sexual reproduction and its impact throughout the eukaryotic tree of life.
Sexual selection in females
Female fertility and mating type effects on effective population size and evolution in filamentous fungi.
The idealized individual in many fungal species is a haploid self-sterile hermaphrodite that may be propagated by asexually produced spores or that may reproduce sexually. In field populations,
Sexual selection: lessons from hermaphrodite mating systems.
  • J. Leonard
  • Biology
    Integrative and comparative biology
  • 2006
Over the last 130 years, research has established that (a) sexual selection exists and is widespread in the plant and animal kingdoms; (b) it does not necessarily entail sexual dimorphism; even
Sexual selection in a hermaphroditic plant
It is reported that a suite of floral traits of a hermaphroditic plant is best interpreted as having evolved through the male competition component of sexual selection, a result with important implications for evolutionary studies of pollination systems.
The evolution of plant reproductive characters; sexual versus natural selection.
It is argued that the category of sexual selection should not include the phenomena of inbreeding depression, genetically based self-incompatibility systems controlled by one or a few loci, or the effects of wide crossing and specific combining ability.
Evolution of the Mating-Type Locus: The Basidiomycetes
Drawing on the great advances made over the past 10 years, this volume provides illuminating insights into the molecular details of cell-type specification, mating-type switching, pheromone perception and signaling, and cellular and nuclear fusion.
Mating System of the Anther Smut Fungus Microbotryum violaceum: Selfing under Heterothallism
The origin of sex chromosomes is believed to have involved suppression of recombination around the essential sex determining genes on an ancestral autosomal pair and progressive expansion of this region of suppressed recombination through the recruitment of other sex-related factors.
The signature of balancing selection: fungal mating compatibility gene evolution.
A broadly applicable approach for detecting balancing selection is presented and applied to the b1 mating type gene in the mushroom fungus Coprinus cinereus and empirical data show that strong balancing selection has indeed occurred at the b 1 locus.