ArticleHydrobiologia2021
Identification of a novel sex determining chromosome in cichlid fishes that acts as XY or ZW in different lineages.
Article in Hydrobiologia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 23 citations in OpenAlex.
- ZW and XY Sex Chromosomes Drive Rapid and Distinctive Evolution of Sex-Biased Gene Expression.Molecular ecology · 2025Article
- The Tree of Sex consortium: a global initiative for studying the evolution of reproduction in eukaryotes.Journal of evolutionary biology · 2025Article
- Sex Differentiation and Long-Distance Gene Flow in the Elusive Antarctic FishEcology and evolution · 2025Article
- Introgression dynamics of sex-linked chromosomal inversions shape the Malawi cichlid radiation.Science (New York, N.Y.) · 2025Article
- The fourspine stickleback (Apeltes quadracus) has an XY sex chromosome system with polymorphic inversions on both X and Y chromosomes.PLoS genetics · 2025Article
- Sex chromosome turnover plays an important role in the maintenance of barriers to post-speciation introgression in willows.Evolution letters · 2024Article
- Diversity of Sex Chromosomes in Vertebrates: Six Novel Sex Chromosomes in Basal Haplochromines (Teleostei: Cichlidae).Genome biology and evolution · 2024Article
- East African cichlid fishes.EvoDevo · 2023Review
- Sex chromosomes in the tribe Cyprichromini (Teleostei: Cichlidae) of Lake Tanganyika.Scientific reports · 2022Article
- Genetic architecture of adaptive radiation across two trophic levels.Proceedings. Biological sciences · 2022Article
- Article
- First identification of two co-existing genome-wide significant sex quantitative trait loci (QTL) in red tilapia using integrative QTL mapping.Zoological research · 2022Article
- The firstComputational and structural biotechnology journal · 2022Article
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Authors and funding
4 authors at 1 institution in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sex determination systems are highly conserved among most vertebrates with genetic sex determination, but can be variable and evolve rapidly in some. Here, we study sex determination in a clade with exceptionally high sex chromosome turnover rates. We identify the sex determining chromosomes in three interspecific crosses of haplochromine cichlid fishes from Lakes Victoria and Malawi. We find evidence for different sex determiners in each cross. In the Malawi cross and one Victoria cross the same chromosome is sex-linked but while females are the heterogametic sex in the Malawi species, males are the heterogametic sex in the Victoria species. This chromosome has not previously been reported to be sex determining in cichlids, increasing the number of different chromosomes shown to be sex determining in cichlids to 12. All Lake Victoria species of our crosses are less than 15,000 years divergent, and we identified different sex determiners among them. Our study provides further evidence for the diversity and evolutionary flexibility of sex determination in cichlids, factors which might contribute to their rapid adaptive radiations. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10750-021-04560-7.
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