ArticleScientific reports2019
Behavioral evolution contributes to hindbrain diversification among Lake Malawi cichlid fish.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 20 citations in OpenAlex.
- Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988.Anatomical record (Hoboken, N.J. : 2007) · 2026Article
- Cyclic Mechanism Affects Lumbar Spine Creep Response.Annals of biomedical engineering · 2026Article
- Ultrastructural Characteristics of the Juvenile Chum Salmon (International journal of molecular sciences · 2025Article
- Vagal afferent projections from the pharyngeal jaw of the cichlid Nile tilapia (European journal of histochemistry : EJH · 2025Article
- Brain areas activated during visual learning in the cichlid fish Pseudotropheus zebra.Brain structure & function · 2023Article
- Covariation of brain and skull shapes as a model to understand the role of crosstalk in development and evolution.Evolution & development · 2023Article
- A connectomics-based taxonomy of mammals.eLife · 2022Article
- Evolution of regulatory networks associated with traits under selection in cichlids.Genome biology · 2021Article
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7 authors at 3 institutions in 1 country.
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Abstract
The evolutionary diversification of animal behavior is often associated with changes in the structure and function of nervous systems. Such evolutionary changes arise either through alterations of individual neural components ("mosaically") or through scaling of the whole brain ("concertedly"). Here we show that the evolution of a courtship behavior in Malawi cichlid fish is associated with rapid, extensive, and specific diversification of orosensory, gustatory centers in the hindbrain. We find that hindbrain volume varies significantly between species that build pit (depression) compared to castle (mound) type bowers and that this trait is evolving rapidly among castle-building species. Molecular analyses of neural activity via immediate early gene expression indicate a functional role for hindbrain structures during bower building. Finally, comparisons of bower building species in neighboring Lake Tanganyika suggest parallel patterns of neural diversification to those in Lake Malawi. Our results suggest that mosaic brain evolution via alterations to individual brain structures is more extensive and predictable than previously appreciated.
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