Journal of Avian Biology, 2022 Resources allocated in reproduction are traded off against those invested in self‐maintenance such as antioxidant response. Glutathione (GSH) is an intracellular antioxidant defence that scavenges reactive oxygen species, the deleterious byproducts of ...
Guillaume Emaresi +2 more
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Insects synthesize pheomelanin
Pigment Cell & Melanoma Research, 2015 Peer ...
Galván, Ismael +3 more
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Signaling in a polluted world: oxidative stress as an overlooked mechanism linking contaminants to animal communication [PDF]
, 2016 The capacity to communicate effectively with other individuals plays a critical role in the daily life of an individual and can have important fitness consequences.
Costantini, David, Marasco, Valeria
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Radiative Relaxation in Synthetic Pheomelanin
The Journal of Physical Chemistry B, 2006 We report a detailed photoluminescence study of cysteinyldopa-melanin (CDM), the synthetic analogue of pheomelanin. Emission spectra are shown to be a far more sensitive probe of CDM's spectroscopic behavior than are absorption spectra. Although CDM and dopa-melanin (DM, the synthetic analogue of eumelanin) have very similar absorption spectra, we find
Riesz, J., Sarna, T., Meredith, P.
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Determination of melanin types and relative concentrations: an observational study using a non-invasive inverse skin reflectance analysis [PDF]
, 2014 Objective: Melanin is a major skin colour pigment that made up of eumelanin (the dark brown–black colour) and pheomelanin (the light red–yellow colour) pigments.
Alerstam +17 more
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Photodestruction of pheomelanin: role of oxygen. [PDF]
Proceedings of the National Academy of Sciences, 1978 Pheomelanin, the red-brown polymeric pigment in the skin and hair of red-headed humans, is composed of a protein fraction covalently bound to a colored chromophore. Photolysis of aerated aqueous phemelanin solutions, isolated from human red hair, results in destruction of the chromophore and liberation of the peptide fraction.
M R, Chedekel +4 more
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Investigation of MC1R SNPs and Their Relationships with Plumage Colors in Korean Native Chicken [PDF]
Asian-Australasian Journal of Animal Sciences, 2013 The melanocortin 1 receptor (MC1R) gene is related to the plumage color variations in chicken. Initially, the MC1R gene from 30 individuals was sequenced and nine polymorphisms were obtained. Of these, three and six single nucleotide polymorphisms (SNPs)
M. R. Hoque +5 more
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Sex-linked inheritance, genetic correlations and sexual dimorphism in three melanin-based colour traits in the barn owl. [PDF]
, 2015 Theory states that genes on the sex chromosomes have stronger effects on sexual dimorphism than genes on the autosomes. Although empirical data are not necessarily consistent with this theory, this situation may prevail because the relative role of sex ...
Jensen, H., Roulin, A.
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Bird Integumentary Melanins: Biosynthesis, Forms, Function and Evolution [PDF]
, 2016 Melanins are the ubiquitous pigments distributed in nature. They are one of the main pigments responsible for colors in living cells. Birds are among the most diverse animals regarding melanin-based coloration, especially in the plumage, although they ...
Agrup +40 more
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Dominant Red Coat Color in Holstein Cattle Is Associated with a Missense Mutation in the Coatomer Protein Complex, Subunit Alpha (COPA) Gene. [PDF]
PLoS ONE, 2015 Coat color in Holstein dairy cattle is primarily controlled by the melanocortin 1 receptor (MC1R) gene, a central determinant of black (eumelanin) vs. red/brown pheomelanin synthesis across animal species. The major MC1R alleles in Holsteins are Dominant
Ben Dorshorst +11 more
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