Characterization and expression analysis of sox3 in medaka gonads  

作　　者：Quan Pu Yuan Ma Ying Zhong Jing Guo Lang Gui Mingyou Li 

机构地区：[1]International Research Center for Marine Biosciences,Ministry of Science and Technology,Shanghai Ocean University,Shanghai,201306,China [2]Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources,Ministry of Education,Shanghai Ocean University,Shanghai,201306,China

出　　处：《Aquaculture and Fisheries》2022年第1期23-30,共8页渔业学报（英文）

基　　金：the National Key R&D Program of China(2018YFD0901205);National Natural Science Foundation of China(31672700).

摘　　要：Numerous studies have showed that sox3 is involved in neurogenesis and sex differentiation in vertebrates.However,the accurate expression pattern is still unclear in fish.In this study,medaka sox3 was isolated and its expression patterns were compared with germ cell gene vasa in adult gonads.By reverse transcription-polymerase chain reaction(RT-PCR)analysis,sox3 RNA expression was detected in the brain,eyes and gonads.By chromogenic and fluorescent in situ hybridization,sox3 was present in the oogonia and early stages of oocytes as well as granulosa cells and theca cells in the later stages;in the testis,sox3 was occurred in the Sertoli cells and sperm with a specific signal in the location of chromatid body of sperm;in the embryos,sox3 was expressed in the central nervous.These results suggest that medaka sox3 gene was occurred in somatic and germ cells in adult gonads of both sexes,involved in the process of spermatogenesis,as well as the development of the nervous system.This study provides a precise expression pattern of sox3 and suggests that sox3 may be involved in gonadal and nervous system development of fish.

关 键 词：MEDAKA sox3 Gonad development Nervous system development 

分 类 号：S917.4[农业科学—水产科学]