Webin the testes that has important reproductive consequences. In males of the African cichlid fish, Astatotilapia bur-toni, reproductive capacity is tightly coupled to social sta-tus (5), which makes it an excellent model to examine how the social transition from subordinate to dominant status influences the BPG axis at the level of the testes. WebCichlid reproductive competence J. M. Kustan et al. 435 smaller testes [35,36]. Importantly, these social states are highly plastic and reversible, such that when given the opportunity, an NT male will ascend in social rank, display reproductive and territorial behaviours within minutes, and gain T male testes size within a few days [37-40].
Plasticity of the Reproductive Axis Caused by Social Status Change …
WebOct 1, 2014 · Here I review the current knowledge on the reproductive behavioral and physiological consequences of relative position in a dominance hierarchy, with a … Websocial hierarchy, where dominant males possess large testes, bright coloration, and perform aggressive and reproductive behaviors while non-dominant males do not (Fernald 2012). Rank along a social hierarchy in A. burtoni is controlled by the social environment, wherein larger males are more likely to be dominant than smaller males. However, social eastar alto saxophone eax-21
Control of testes mass by androgen receptor paralogs in a cichlid
WebJan 1, 2011 · Abstract. Reproduction in all vertebrates is controlled by the brain-pituitary-gonad (BPG) axis, which is regulated socially in males of the African cichlid fish Astatotilapia burtoni.Although social information influences GnRH1 neurons at the apex of the BPG axis, little is known about how the social environment and dominance affects … WebQuestion: In page 131, Fine writes "cichlid testes are a social construction” What does she mean there? Answer: [your answer] Ch. 7: “The myth of the Lehman sisters” … Webhave been strongly linked to social status, yet the molecular mechanisms regulating social status are not known. The African cichlid fish Astatotilapia burtoni is a powerful model … eastar air