ArticleBiology letters2008
Evidence of disassortative mating in a Tanganyikan cichlid fish and its role in the maintenance of intrapopulation dimorphism.
Article in Biology letters, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 47 citations in OpenAlex.
- Insights into the genetic basis of bilateral head asymmetry in a scale-eating cichlid fish.Science advances · 2025Article
- Female budgerigars prefer males with foraging skills that differ from their own.Animal cognition · 2025Article
- Color polymorphism and mating trends in a population of the alpine leaf beetle Oreina gloriosa.PloS one · 2024Article
- Shell color polymorphism in marine gastropods.Evolutionary applications · 2023Review
- Coiling directions in the planktonic foraminifer Pulleniatina: A complex eco-evolutionary dynamic spanning millions of years.PloS one · 2021Article
- Gene(s) and individual feeding behavior: Exploring eco-evolutionary dynamics underlying left-right asymmetry in the scale-eating cichlid fishEcology and evolution · 2018Article
- Negative-Assortative Mating in the White-Throated Sparrow.The Journal of heredity · 2018Article
- Polymorphism at a mimicry supergene maintained by opposing frequency-dependent selection pressures.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- A novel method for estimating the strength of positive mating preference by similarity in the wild.Ecology and evolution · 2017Article
- Mouth asymmetry in the textbook example of scale-eating cichlid fish is not a discrete dimorphism after all.Proceedings. Biological sciences · 2012Article
- The adaptive radiation of cichlid fish in lake tanganyika: a morphological perspective.International journal of evolutionary biology · 2011Article
- Scale-eating cichlids: from hand(ed) to mouth.Journal of biology · 2010Review
- Article
- FlowerMate: Multidimensional reciprocity and inaccuracy indices for style-polymorphic plant populations.Applications in plant sciencesArticle
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Morphological dimorphism in the mouth-opening direction ('lefty' versus 'righty') has been documented in several fish species. It has been suggested that this deflection is heritable in a Mendelian one-locus, two-allele fashion. Several population models have demonstrated that lateral dimorphism is maintained by negative frequency-dependent selection, resulting from interactions between predator and prey species. However, other mechanisms for the maintenance of lateral dimorphism have not yet been tested. Here, we found that the scale-eating cichlid fish Perissodus microlepis exhibited disassortative mating, in which reproductive pairings between lefties and righties occurred at higher than expected frequency (p<0.001). A previous study reported that a lefty-righty pairing produces a 1:1 ratio of lefty:righty young, suggesting that disassortative mating contributes to the maintenance of lateral dimorphism. A combination of disassortative mating and negative frequency-dependent selection may stabilize lateral dimorphism more than would a single mechanism.
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