ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2020
Convergent patterns of evolution of mitochondrial oxidative phosphorylation (OXPHOS) genes in electric fishes.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 17 citations in OpenAlex.
- Characterization of Three Complete Mitochondrial Genomes ofInternational journal of molecular sciences · 2026Article
- Insight into the Evolution of Mitochondrial Genetic Basis of Amphibious Adaptation in the Goby (Teleostei: Gobiidae).Journal of molecular evolution · 2026Review
- Brain Transcriptomics Reveals Molecular Mechanisms of Cave Adaptation inEcology and evolution · 2025Article
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- Disentangling Positive Selection from Relaxed Selection in Animal Mitochondrial Genomes.The American naturalist · 2023Article
- Alternative signal pathways underly fertilization and egg activation in a fish with contrasting modes of spawning.BMC genomics · 2023Article
- Mitochondrial Short-Term Plastic Responses and Long-Term Evolutionary Dynamics in Animal Species.Genome biology and evolution · 2021Review
- Linking the mitochondrial genotype to phenotype: a complex endeavour.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
- Faraway, so close. The comparative method and the potential of non-model animals in mitochondrial research.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Article
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3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The ability to generate and detect electric fields has evolved in several groups of fishes as a means of communication, navigation and, occasionally, predation. The energetic burden required can account for up to 20% of electric fishes' daily energy expenditure. Despite this, molecular adaptations that enable electric fishes to meet the metabolic demands of bioelectrogenesis remain unknown. Here, we investigate the molecular evolution of the mitochondrial oxidative phosphorylation (OXPHOS) complexes in the two most diverse clades of weakly electric fishes-South American Gymnotiformes and African Mormyroidea, using codon-based likelihood approaches. Our analyses reveal that although mitochondrial OXPHOS genes are generally subject to strong purifying selection, this constraint is significantly reduced in electric compared to non-electric fishes, particularly for complexes IV and V. Moreover, analyses of concatenated mitochondrial genes show strong evidence for positive selection in complex I genes on the two branches associated with the independent evolutionary origins of electrogenesis. These results suggest that adaptive evolution of proton translocation in the OXPHOS cellular machinery may be associated with the evolution of bioelectrogenesis. Overall, we find striking evidence for remarkably similar effects of electrogenesis on the molecular evolution of mitochondrial OXPHOS genes in two independently derived clades of electrogenic fishes. This article is part of the theme issue 'Linking the mitochondrial genotype to phenotype: a complex endeavour'.
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