Mix and Match Color Vision: Tuning Spectral Sensitivity by Differential Opsin Gene Expression in Lake Malawi Cichlids
@article{Parry2005MixAM, title={Mix and Match Color Vision: Tuning Spectral Sensitivity by Differential Opsin Gene Expression in Lake Malawi Cichlids}, author={Juliet W. L. Parry and Karen L. Carleton and Tyrone C. Spady and Aba Carboo and David M. Hunt and James. K. Bowmaker}, journal={Current Biology}, year={2005}, volume={15}, pages={1734-1739} }
210 Citations
Determination of the Genetic Architecture Underlying Short Wavelength Sensitivity in Lake Malawi Cichlids
- BiologyThe Journal of heredity
- 2017
This work makes a conservative estimate that short wavelength opsin expression is regulated by a few loci and helps answer long-standing questions about the evolutionary processes fundamental to Opsin expression variation and how this contributes to adaptive cichlid divergence.
Visual sensitivities tuned by heterochronic shifts in opsin gene expression
- BiologyBMC Biology
- 2008
Differences in visual sensitivities among species of Lake Malawi cichlids arise through heterochronic shifts relative to the ontogenetic pattern of the tilapia outgroup through altering developmental expression patterns, a powerful mechanism for change in morphological evolution.
Contribution of opsins and chromophores to cone pigment variation across populations of Lake Victoria cichlids
- Biology, Environmental SciencebioRxiv
- 2021
Variation in chromophore ratios across multiple cichlid populations in Lake Victoria is explored, using as a proxy the enzyme CYP27C1 that catalyses the conversion of Vitamin A1-into A2 to establish the biological importance of this variation.
Functional diversity in the color vision of cichlid fishes
- BiologyBMC Biology
- 2010
It is argued that females and males sample their visual environment differently, providing a neural basis for sexually dimorphic visual behaviour, and offers the first comprehensive evidence for pentachromatic color vision in vertebrates, which offers the potential for extraordinary spectral discrimination capabilities.
Diversity in visual sensitivity across Neotropical cichlid fishes via differential expression and intraretinal variation of opsin genes
- BiologyMolecular ecology
- 2021
Patterns of opsin gene expression in 35 representative species of Neotropical cichlids are surveyed, revealing much more variation than previously known and highlighting the role and flexibility of geneexpression in generating adaptive phenotypic diversification.
Allelic Variation in Malawi Cichlid Opsins: A Tale of Two Genera
- BiologyJournal of Molecular Evolution
- 2010
This work describes sequence variation in multiple species of two rock-dwelling genera: Metriaclima and Labidochromis that suggest spectral tuning is important at the margins of the cichlid visual spectrum and that the specific regions of spectral tuning are genus-specific.
Geographic variation in opsin expression does not align with opsin genotype in Lake Victoria cichlid populations
- BiologyEcology and evolution
- 2019
Visual modeling suggests that the observed distribution of opsin expression profiles and LWS genotypes does not maximize visual performance, implying the involvement of additional visual tuning mechanisms and/or incomplete adaptation.
Colour vision and speciation in Lake Victoria cichlids of the genus Pundamilia
- BiologyMolecular ecology
- 2005
Variation in LWS λmax and in the proportion of red/red double cones could lead to differences in perceived brightness that may explain the evolution of variation in male coloration.
Cichlid fish visual systems: mechanisms of spectral tuning.
- BiologyIntegrative zoology
- 2009
Cichlids can also more finely tune visual pigments through alterations in opsin amino acid sequence, which could contribute to the evolution of cichlid diversity through speciation.
Correlation between nuptial colors and visual sensitivities tuned by opsins leads to species richness in sympatric Lake Victoria cichlid fishes.
- BiologyMolecular biology and evolution
- 2012
The λ(d) value of the male nuptial coloration correlated with the absorption of LWS pigments from all the species, suggesting that reproductive isolation through mate choice using color signals may prevent sympatric interspecific hybridization, thereby maintaining the species diversity in sympatrics species in Lake Victoria.
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