Morphological and histological changes in the brains of turbot(Scophthalmus maximus) with gonadal development

IOCAS-IR

	Morphological and histological changes in the brains of turbot(Scophthalmus maximus) with gonadal development
	Chunyan Zhao; Liang Chi ; Yongshuang Xiao ; Bing Li ; Yunliang Lu ; Yanting Cui ; Wenqi Wang ; Jun Li
发表期刊	Acta Oceanologica Sinica
ISSN	0253-505X
	2022-12-15
出版年	2022
卷号	v.41 期号:12 页码:119-126
文献类型	CNKI期刊论文
摘要	The brain plays a critical role in controlling reproduction through the hypothalamus-pituitary-gonadal(HPG) axis in vertebrates. Turbot(Scophthalmus maximus) has become an economically important marine fish in Europe and North China. Previous research investigating turbot reproduction has focused on the role of the HPG axis in regulating egg and sperm production. However, the morphology and histology of the organs in the HPG axis have not been studied. In this study, we investigated the morphology and histology of brains in female and male turbot at different stages of gonadal development. The results showed that the brains of both female and male turbot were composed of seven parts that are typical of advanced teleosts: the telencephalon, diencephalon, cerebellum,hypothalamus, pituitary gland, myelencephalon, and olfactory bulbs. The telencephalon was well-developed and contained five distinct lobes, with the contiguous diencephalon at the caudal portion. The torus longitudinales and rostral torus semicircularis of the mesencephalon flattened along the dorsal surface, and the rostral corpus cerebellum was located in the dorsal portion. The actual total brain volume in mature males was significantly greater(p<0.05) than that of females with gonadal development. Notably, the pituitary volume in male turbot significantly increased(p<0.05) from immature to mature stage, but this difference did not occur in females. The data together illustrate a distinct sex difference in the turbot brain during gonadal development, providing insight into their HPG axes.
关键词	turbot brain pituitary gonadal development morphology histology
CNKI专辑号	A;D;
CNKI专辑名称	基础科学;农业科技;
CNKI专题号	D052;
CNKI专题名称	水产和渔业;
分类号	S917.4
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	The National Natural Science Foundation of China under contract Nos 31802319, 31972784 and 31802269 ; the Natural Science Foundation of Shandong Province under contract No. ZR2018BC053 ; the Agricultural Application Technology Innovation Project of Shandong Province under contract No. SD2019YY006 ; the Advanced Talents Foundation of Qingdao Agricultural University under contract Nos 6631119055 and 6631119032
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/187227
专题	中国科学院海洋研究所
作者单位	1.SchoolofMarineScienceandEngineering,QingdaoAgriculturalUniversity 2.CollegeofVeterinaryMedicine,QingdaoAgriculturalUniversity 3.CASKeyLaboratoryofExperimentalMarineBiology,CenterforOceanMega-Science,InstituteofOceanology,ChineseAcademyofSciences 4.MarineBiologyandBiotechnologyLaboratory,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao)
推荐引用方式 GB/T 7714	Chunyan Zhao,Liang Chi,Yongshuang Xiao,et al. Morphological and histological changes in the brains of turbot(Scophthalmus maximus) with gonadal development. 2022.