Sexual plasticity of fish gonad

从形态学和分子生物学的角度研究了鱼类性腺的性可塑性。鲤鱼卵巢发育的特殊区域保留了分化为睾丸组织的潜力。性腺体细胞衍生生长因子（GSDF）在这些区域表达，提示其参与性可塑性。这种生长因子在濑鱼的原生性变化（从卵巢到睾丸）中起着至关重要的作用。雌性激素对遗传雄鱼的影响表明，随着睾丸组织结构的形成，性可塑性逐渐退化。

Sexual plasticity of fish gonad was addressed by morphologial and molecular biological approaches. In mauring ovary of common carp, special regions retain a potential to be differentiated into testicular tissue. Gonadal soma derived growth factor(GSDF) is expressed in the regions, suggesting its involvement in the sexual plasticity. This growth factor is shown to exert a crucial role in the protogynous sex change(from ovary to testis) in wrasse. Meanwhile, estrogen administration to genetic male of common carp showed that sexual plasticity regressed as testicular tissue architecture was formed.