Latest News
Content with tag sitta europaea .
Influencia diferencial de la expresión de Slc7a11 y la condición corporal sobre la pigmentación producida por feomelanina en dos poblaciones de trepador azul Sitta europea con diferente riesgo de depredación
The expression of the gene Slc7a11 promotes the antioxidant capacity of cells by providing them with cysteine that can be used for the synthesis of glutathione (GSH), the most important...
Predation risk determines pigmentation phenotype in nuthatches by melanin?related gene expression effects
Pigments determine the appearance of organisms. However, pigment production can be associated to physiological constraints as in the case of pheomelanin, the sulphurated form of melanin whose...
Females mate with males with diminished pheomelanin-based coloration in the Eurasian nuthatch Sitta europaea
Sexual selection can drive the evolution of phenotypic traits because of female preferences for exaggerated trait expression in males. Sexual selection can also lead to the evolutionary loss of...