Abstract

Thyroid hormones (THs) are the most important regulators of coloration ontogeny in teleosts. It has been shown experimentally that alterations in the hormonal status due to prolonged treatment with a biologically active form of THs, triiodothyronine, causes changes in the development of adult pigment patterns in bilaterally symmetrical Amatitlania nigrofasciata and Poecilia wingei. Induced hyperthyroidism in experimental fishes leads to an acceleration of coloration ontogeny and an increase in the frequency of asymmetry in various elements of the melanistic pattern. The revealed dependence of the development of asymmetric pigment patterns on the activity of the thyroid axis in fishes with varying degrees of metamorphic coloration transformations offers the prospect for further experimental studies of the role of the TH-signaling pathway in the evolution of teleosts.

中文翻译：

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甲状腺激素对硬骨鱼不对称色素图形发育的影响：以黑线锦葵（Amatitlania nigrofasciata（丽鱼科）和翼柏（Poecilia wingei）（Poeciliidae）为例）的实验数据

摘要

甲状腺激素（THs）是硬骨鱼最重要的着色个体发育调节因子。实验已经表明，由于与THS，三碘甲状腺氨酸，的生物活性形式长期治疗改变在激素状态引起左右对称在成人颜料模式的发展变化Amatitlania nigrofasciata和温氏花鳉。实验鱼类中的甲状腺功能亢进症导致黑色素形成的各种成分中着色显体发育的加快和不对称频率的增加。在不同程度的变色变色鱼类中，不对称色素分布的发展对甲状腺轴活性的依赖性揭示了TH信号通路在硬骨鱼进化中的作用的进一步实验研究的前景。