Comparative gene expression profiles for highly similar aggressive phenotypes in male and female cichlid fishes (Julidochromis).

摘要: SUMMARY Julidochromis marlieri and transcriptus are two closely related Tanganyikan cichlids that have evolved different behavior mating strategies since they diverged from their common ancestor. While J. follows the ancestral pattern of male dominance, male-biased sexual size dimorphism territoriality, is reversed in . In , females show all these behavioral morphological characteristics. This raises question whether female achieve dominant phenotype by expressing same genes as males or novel brain gene expression patterns to produce a similar study used cDNA microarrays investigate conserved divergent expression. Analysis microarray data both species showed certain associated with sex role independent gonadal and, lesser extent, role. general, suggest while there has been substantial divergence between we can detect highly significant overlap for core set aggression species. These results proximate mechanisms regulating aggressive may be shared.