Alternative mating strategies may favour the persistence of a genetically based colour polymorphism in a pentamorphic fish. Slc45a2 and V-ATPase are regulators of melanosomal pH homeostasis in zebrafish, providing a mechanism for human pigment evolution and disease.
Integumental reddish-violet coloration owing to novel dichromatic chromatophores in the teleost fish, Pseudochromis diadema.
Occasionally, there are hermaphrodites in place of one or both sexes. Yano 2Terumi Hatanaka 2Ezequiel A. Dergam, J. Ozouf-Costaz, E. Zwick, M. Comparative chromosome mapping of repetitive sequences.
Weis S. Such loci are therefore frequently found in the sex-specific regions of heterogametic sex chromosomes, where recombination is very low or absent. Can J Genet Cytology. A test for preference of association in a color polymorphic poeciliid fish: Laboratory study.
Sedlacek O. If such alleles with sexually antagonistic effects are present on autosomes, they will not easily spread within a population, because selection for an increase in allele frequency in one sex will be counteracted by selection against the allele in the other sex. Lindholm A. A similar fusion has occurred in the blackspotted stickleback G.