Baroiller J F, Guiguen Y
CIRAD-EMVT (Centre International en Recherche Agronomique pour le Développement), Campus de Beaulieu, 35042 Rennes, France.
EXS. 2001(91):177-201. doi: 10.1007/978-3-0348-7781-7_9.
This paper reviews current knowledge concerning the endocrine and environmental regulation of gonadal sex differentiation in gonochoristic fish. In gonochoristic fish, although potentially active around this period, the hypothalamo-pituitary axis is probably not involved in triggering sex differentiation. Although steroids and steroidogenic enzymes are probably not the initial triggers of sex differentiation, new data, including molecular approaches, have confirmed that they are key physiological steps in the regulation of this process. Environmental factors can strongly influence sex differentiation in gonochoristic fish. The most important environmental determinant of sex would appear to be temperature. Interactions between environmental factors and genotype have been suggested for gonochoristic fish.
本文综述了有关雌雄异体鱼类性腺性别分化的内分泌和环境调节的当前知识。在雌雄异体鱼类中，下丘脑-垂体轴虽然在这一时期可能具有活性，但可能并不参与触发性别分化。尽管类固醇和类固醇生成酶可能不是性别分化的初始触发因素，但包括分子方法在内的新数据已证实它们是这一过程调节中的关键生理步骤。环境因素可强烈影响雌雄异体鱼类的性别分化。性别最重要的环境决定因素似乎是温度。对于雌雄异体鱼类，已提出环境因素与基因型之间存在相互作用。
