ArticleMolecular ecology2023
Genetic basis of ecologically relevant body shape variation among four genera of cichlid fishes.
Article in Molecular ecology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 17 citations in OpenAlex.
- Ecological and genomic signatures of the convergent evolution of planktivory in fossil and living reef fishes over deep time.Nature communications · 2026Article
- Dynamic body size evolution during speciation of predatory cichlid fishes in the Lake Malawi superradiation.Genome research · 2026Article
- Article
- Genomic, morphological and migratory patterns in recovering Atlantic salmon populations.Aquatic sciences · 2026Article
- Weight-Length Ratio of PiranhasEcology and evolution · 2025Article
- Article
- Complex and Dynamic Gene-by-Age and Gene-by-Environment Interactions Underlie Functional Morphological Variation in Adaptive Divergence in Arctic Charr (Salvelinus alpinus).Evolution & development · 2025Article
- Water temperature modulates multidimensional plastic responses to water flow during the ontogeny of a neotropical fish (Frontiers in cell and developmental biology · 2025Article
- Ecological diversification of sea catfishes is accompanied by genome-wide signatures of positive selection.Nature communications · 2024Article
- A whole-body micro-CT scan library that captures the skeletal diversity of Lake Malawi cichlid fishes.Scientific data · 2024Article
- The evolution and genetic basis of a functionally critical skull bone, the parasphenoid, among Lake Malawi cichlids.Evolutionary journal of the Linnean Society · 2024Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
Divergence in body shape is one of the most widespread and repeated patterns of morphological variation in fishes and is associated with habitat specification and swimming mechanics. Such ecological diversification is the first stage of the explosive adaptive radiation of cichlid fishes in the East African Rift Lakes. We use two hybrid crosses of cichlids (Metriaclima sp. × Aulonocara sp. and Labidochromis sp. × Labeotropheus sp., >975 animals total) to determine the genetic basis of body shape diversification that is similar to benthic-pelagic divergence across fishes. Using a series of both linear and geometric shape measurements, we identified 34 quantitative trait loci (QTL) that underlie various aspects of body shape variation. These QTL are spread throughout the genome, each explaining 3.2-8.6% of phenotypic variation, and are largely modular. Further, QTL are distinct both between these two crosses of Lake Malawi cichlids and compared to previously identified QTL for body shape in fishes such as sticklebacks. We find that body shape is controlled by many genes of small effect. In all, we find that convergent body shape phenotypes commonly observed across fish clades are most likely due to distinct genetic and molecular mechanisms.
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