Neuroendocrine regulation of reproduction in fish – Mini review

Q1 Agricultural and Biological Sciences

Aquaculture and Fisheries Pub Date : 2023-10-20 DOI:10.1016/j.aaf.2023.09.001

Kirankumar Santhakumar

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Abstract

This review highlights the recent developments regarding neuroendocrine mechanisms controlling teleost reproduction. In teleosts, the pituitary gland receives major neuronal innervations from Gnrh neurons as well as minor innervations from small population of neurons that will secrete neurotransmitters and/or neuropeptides. The diversity of Kiss/Kissr system in various teleost species and their actions in the context of HPG axis and reproduction has been extensively covered. In teleost model systems, zebrafish and medaka, mutant lines for key components of the HPG axis have been generated through targeted mutagenesis but surprisingly most of the mutants developed normally without major defects in reproduction; these mutant phenotypes are described. In the last decade, complex role of diverse neuropeptides in teleost reproduction is being revealed. A brief overview about the reproductive functions of neuropeptides is presented. Finally, the effects of environmental factors namely photoperiodism and temperature on the functions of HPG axis is summarised.

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鱼类生殖的神经内分泌调控--微型综述

这篇综述重点介绍了控制远洋鱼类繁殖的神经内分泌机制的最新进展。在远洋鱼类中，脑垂体主要接受 Gnrh 神经元的神经支配，也接受小群神经元的神经支配，这些神经元会分泌神经递质和/或神经肽。Kiss/Kissr 系统在各种远洋鱼类中的多样性及其在 HPG 轴和繁殖中的作用已被广泛报道。在远摄动物模型系统--斑马鱼和青鳉--中，通过定向诱变产生了 HPG 轴关键成分的突变体系，但令人惊讶的是，大多数突变体发育正常，没有生殖方面的重大缺陷；本文对这些突变体的表型进行了描述。近十年来，各种神经肽在远洋鱼类繁殖中的复杂作用逐渐被揭示出来。本文简要概述了神经肽的生殖功能。最后，总结了环境因素（即光周期和温度）对 HPG 轴功能的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aquaculture and Fisheries Agricultural and Biological Sciences-Aquatic Science

CiteScore

7.50

自引率

0.00%

发文量

审稿时长

48 days