ArticleMolecular biology and evolution2022
Ecological Speciation Promoted by Divergent Regulation of Functional Genes Within African Cichlid Fishes.
Article in Molecular biology and evolution, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Developmental divergence in gene regulation underlies trophic innovation in Lake Victoria cichlids.Proceedings. Biological sciences · 2026Article
- Ancestral splice variation is a key substrate for rapid diversification in African cichlids.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Structural variation drives rhizome innovation and adaptive divergence in sister Medicago species.Journal of integrative plant biology · 2026Article
- Craniofacial-specific transcriptomics uncovers novel genes underlying jaw divergence in dietary specialist pupfishes.Genetics · 2025Article
- Elemental Homeostasis Deciphers the Multidimensional Stoichiometric Niche of Fish Communities in the Beibu Gulf.Ecology and evolution · 2025Article
- Rapid Divergence of Visual Systems and Signaling Traits to Contrasting Light Regimes During Early Speciation of African Crater Lake Cichlid Fish.Molecular biology and evolution · 2025Article
- Evolutionary Genomics Unravels the Responses and Adaptation to Climate Change in a Key Alpine Forest Tree Species.Molecular biology and evolution · 2025Article
- Two new species of Mylochromis (Cichlidae) from Lake Malawi, Africa.Journal of fish biology · 2025Article
- Transition to Piscivory Seen Through Brain Transcriptomics in a Juvenile Percid Fish: Complex Interplay of Differential Gene Transcription, Alternative Splicing, and ncRNA Activity.Journal of experimental zoology. Part A, Ecological and integrative physiology · 2025Article
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- Gene expression and alternative splicing contribute to adaptive divergence of ecotypes.Heredity · 2024Article
- Lateral line system diversification during the early stages of ecological speciation in cichlid fish.BMC ecology and evolution · 2024Article
- Nuclear environmental DNA resolves fine-scale population genetic structure in an aquatic habitat.iScience · 2024Article
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10 authors.
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Abstract
Rapid ecological speciation along depth gradients has taken place repeatedly in freshwater fishes, yet molecular mechanisms facilitating such diversification are typically unclear. In Lake Masoko, an African crater lake, the cichlid Astatotilapia calliptera has diverged into shallow-littoral and deep-benthic ecomorphs with strikingly different jaw structures within the last 1,000 years. Using genome-wide transcriptome data, we explore two major regulatory transcriptional mechanisms, expression and splicing-QTL variants, and examine their contributions to differential gene expression underpinning functional phenotypes. We identified 7,550 genes with significant differential expression between ecomorphs, of which 5.4% were regulated by cis-regulatory expression QTLs, and 9.2% were regulated by cis-regulatory splicing QTLs. We also found strong signals of divergent selection on differentially expressed genes associated with craniofacial development. These results suggest that large-scale transcriptome modification plays an important role during early-stage speciation. We conclude that regulatory variants are important targets of selection driving ecologically relevant divergence in gene expression during adaptive diversification.
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