Global ETD Search
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Showing 1 to 5 of 5 for “"Astatotilapia calliptera"”.
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Evolution and Development of Pigmentation Patterns in East African Cichlid fishes
… development in the ancestral proxy species, Astatotilapia calliptera. Although egg-spots are almost ubiquitous among haplochromines, their cellular level ontogeny remains unknown. Detailed imaging from embryonic to mature stages enabled the identification of relevant pigment cell types, and …
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A role for environmental epigenetics in the rapid diversification of East African cichlid fishes
… setting. Here, I supply generalist cichlid Astatotilapia calliptera with two alternate diets, formulated to mimic piscivorous and algivorous trophic regimes. Within one generation of this experiment, fish of each diet treatment developed novel craniofacial and body shape morphologies, …
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Transcriptional divergence during cichlid embryogenesis
… groups: the ancestral-like generalist Astatotilapia calliptera and the specialized mbuna (rock-dwelling) algae-scraper Tropheops sp. ‘mauve’. Transcriptomic data are generated and analyzed at multiple resolutions, including bulk RNA sequencing and single-cell RNA sequencing, to address …
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Colouration evo-devo: the developmental basis of intra-specific variation in cichlid pigmentation
… In a population of the generalist species Astatotilapia calliptera from the Lake Malawi/Nyasa radiation, variation in egg-spots maintains signal visibility across different depths. A Genome Wide Association Study (GWAS) identified oca2, a gene required for pigment synthesis in melanophores, …
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Epigenetic variability and inheritance in East African cichlid fishes
The hundreds of cichlid species forming part of the radiation of East African Lakes show a remarkable diversity of phenotypic and ecological adaptation. Despite this, recent studies highlighted that genetic diversity within the radiation is among the lowest ever observed in vertebrates. Such a high …