Reproductive Character Displacement in Genital Morphology in Satsuma Land Snails

@article{Kameda2009ReproductiveCD,
  title={Reproductive Character Displacement in Genital Morphology in Satsuma Land Snails},
  author={Yuichi Kameda and Atsushi Kawakita and Makoto Kato},
  journal={The American Naturalist},
  year={2009},
  volume={173},
  pages={689 - 697}
}
When species diverge in allopatry and come into secondary contact, natural selection might favor character divergence to facilitate partner discrimination and avoid mating interference. This process is called reinforcement, which typically results in greater differentiation in mating‐associated traits in areas of sympatry (reproductive character displacement). Such patterns are usually manifest in premating signals, but little is known about how interspecific mating affects the morphological… 
Divergence in genital morphology may contribute to mechanical reproductive isolation in a millipede
TLDR
It is suggested that divergence in genital shape may be contributing to reproductive isolation, and incipient speciation among isolated populations of A. variabilis, and variation in mating behavior might indicate the emergence of precopulatory reproductive barriers.
EVIDENCE FOR STABILIZING SELECTION AND SLOW DIVERGENT EVOLUTION OF MALE GENITALIA IN A MILLIPEDE (ANTICHIROPUS VARIABILIS)
TLDR
The results suggest that the genitalia of A. variabilis are currently experiencing a period of stabilizing selection, the mode of selection expected for genitalia that function in species recognition via a “lock‐and‐key” mechanism.
Genital divergence in sympatric sister snails
TLDR
It is shown that penial morphology follows the predicted pattern in 40 robustly identified sister‐species pairs in the marine gastropod subfamily Littorininae, suggesting a role for genital form in reproductive isolation in this large clade.
Phylo-comparative analyses reveal the dual role of drift and selection in reproductive character displacement
TLDR
It is shown how the phylo-comparative method together with genomic data can be used to evaluate evolutionary processes at the population level in closely related species and quantify the amount of drift and selection necessary for RCD to lead to speciation.
Male genital morphology influences paternity success in the millipede Antichiropus variabilis
TLDR
This is the first study to provide evidence for sperm precedence in a millipede and the second to document the form of post-copulatory sexual selection operating on male genital morphology, and how the findings relate to alternative theories of genital evolution is discussed.
Are assortative mating and genital divergence driven by reinforcement?
TLDR
The results support a model with no gene flow since secondary contact and thus favor reproductive interference as the cause of reproductive character displacement for mate choice, rather than reinforcement, and argue against the Templeton effect.
Unresolved questions in genitalia coevolution: bridging taxonomy, speciation, and developmental genetics
  • A. Yassin
  • Biology
    Organisms Diversity & Evolution
  • 2016
TLDR
It is argued that systematists, with their well training in comparative morphology, usage of large and geographically diverse collections, and ability to apply molecular genetics techniques, can make important contributions to genitalia coevolution.
Directional mitochondrial introgression and character displacement due to reproductive interference in two closely related Pterostichus ground beetle species
TLDR
Molecular analyses of two nuclear genes and a mitochondrial gene from two closely related ground beetle species suggest that interspecific hybridization and subsequent mitochondrial introgression from P. habui to P. thunbergi have occurred.
Surviving in Sympatry: Paragenital Divergence and Sexual Mimicry between a Pair of Traumatically Inseminating Plant Bugs
TLDR
A cryptic species of traumatically inseminating plant bug living sympatrically with its sister species, Coridromius tahitiensis, in French Polynesia supports a role for reproductive character divergence and interspecies sexual mimicry in limiting interspecific mating brought about by indiscriminate male mating behavior.
...
...

References

SHOWING 1-10 OF 63 REFERENCES
Character Displacement in Giant Rhinoceros Beetles
TLDR
Male morphology of two closely related rhinoceros beetles species indicates that morphological character displacement in sympatry was most complete in sexual organs, which may account for the process of existing species conserving themselves as integrated units by avoiding interspecific competition and enhancing reproductive isolation.
Reinforcement of pre-zygotic isolation and karyotype evolution in Agrodiaetus butterflies
TLDR
It is shown that the sympatric distribution of 15 relatively young sister taxa of Agrodiaetus strongly correlates with differences in male wing colour, and that this pattern is most likely the result of reinforcement.
Sexual selection and genital evolution.
Co‐evolution of male and female reproductive characters across the Scathophagidae (Diptera)
TLDR
Sperm length was positively associated with the length of the spermathecal (sperm store) ducts, indicating correlated evolution between the two, but no associations between sperm length or length variation and testis size were found which suggests greater sperm competition sensu stricto does not select for longer sperm.
Tales of two snails: sexual selection and sexual conflict in Lymnaea stagnalis and Helix aspersa.
  • J. Koene
  • Biology
    Integrative and comparative biology
  • 2006
TLDR
Findings support the existence of sexual conflict in simultaneously hermaphroditic snails, and its importance for the evolution of mating behaviors and reproductive morphologies is discussed.
REINFORCEMENT OF STICKLEBACK MATE PREFERENCES: SYMPATRY BREEDS CONTEMPT
TLDR
Results are consistent with the hypothesis that female mate preferences have evolved as a response to reduced hybrid fitness (reinforcement), although direct effects of sympatry or a biased extinction process could also produce the pattern.
The genus Partula on Moorea: speciation in progress
  • J. Murray, B. Clarke
  • Biology, Environmental Science
    Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1980
TLDR
The authors' observations are consistent with the view that all the Moorean taxa (excepting Samoana) are descendants of a single ancestral invasion, although the possibility of more than one invasion cannot be excluded.
GENITAL LOCK‐AND‐KEY AS A SELECTIVE AGENT AGAINST HYBRIDIZATION
  • T. Sota, K. Kubota
  • Biology
    Evolution; international journal of organic evolution
  • 1998
TLDR
Female mortality and low fertilization rate, and genital lock‐and‐key appears to exert significant selection against hybridization in the hybrid zone of these carabid beetles.
Speciation and Gene Flow between Snails of Opposite Chirality
TLDR
The results imply that speciation by chiral reversal is only meaningful in the context of a complex biogeographical process, and so must usually involve other factors.
...
...