您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Recovery of gonadal development in tiger puffer Takifugu rubripes after exposure to 17 beta-estradiol during early life stages

文献类型： 外文期刊

作者： Hu Peng 1 ; Liu Bin 2 ; Meng Zhen 2 ; Liu Xinfu 2 ; Jia Yudong 2 ; Yang Zhi 3 ; Lei Jilin 2 ;

作者机构： 1.Ocean Univ China, Minist Educ, Key Lab Mariculture, Qingdao 266003, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Municipal Key Lab Marine Fish Breeding & Biotechn, Qingdao 266071, Peoples R China

3.Tianyuan Aquaculture Co Ltd Yantai Econ Dev Zone, Yantai 264000, Peoples R China

关键词： Takifugu rubripe s;17 beta-estradiol;sex reversal;gonadal structure;morphological recovery

期刊名称：CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY （ 影响因子：1.068； 五年影响因子：0.983 ）

ISSN： 0254-4059

年卷期： 2017 年 35 卷 3 期

页码：

收录情况： SCI

摘要： The aim of the present study was to investigate the long-term effects of 17 beta-estradiol (E2) exposure on gonadal development in the tiger puff er (Takifugu rubripes), which has a genetic sex determination system of male homogametic XY-XX. Tiger puff er larvae were exposed to 1, 10 and 100 mu g/L E2 from 15 to 100 days post-hatch (dph) and then maintained in clean seawater until 400 dph. Changes in sex ratio, gonadal structure and gonadosomatic index (GSI) were monitored at 100, 160, 270 and 400 dph. Sex-associated single nucleotide polymorphism (SNP) markers were used to analyze the genetic sex of samples, except those at 100 dph. Exposure had a positive effect on the conversion of genetically male gonads into phenotypically female gonads at 100 dph. However, gonads from 60% of genetic XY males in the 1-mu g/L E2 group and 100% in the 10-mu g/L E2 group developed intersexual gonads at 160 dph; gonads of all genetic XY males in the two treatment groups reverted to testis by 270 dph. While 38%, 57% and 44% of gonads of XY fish in the 100-mu g/L E2 group reverted to intersexual gonads at 160, 270 and 400 dph, respectively, none reverted to testis after E2 treatment. In addition, E2 exposure inhibited gonadal growth of both genetic sexes, as indicated by the clear dose-dependent decrease in GSI at 270 and 400 dph. The results showed that exposure to E2 during the early life stages of tiger puff er disrupted gonadal development, but that fish recovered after migration to clean seawater. The study suggests the potential use of tiger puff er as a valuable indicator species to evaluate the effects of environmental estrogens on marine fish, thereby protecting valuable fishery resources.

  • 相关文献

[1]AEROBIC BIODEGRADATION KINETICS OF 17 beta-ESTRADIOL IN ACTIVATED SLUDGE: INFLUENCE FACTORS AND METABOLIC PRODUCTS PREDICTION. Zhang, Zhaohan,Zou, Qiuyan,Xiang, Lijun,Lin, Nan,Gao, Peng,Feng, Yujie,Ren, Nanqi,Zhang, Zhaohan,Zhan, Peirong.

[2]Molecular cloning, characterization and expression analysis of Sox9a and Foxl2 genes in half-smooth tongue sole (Cynoglossussemilaevis). Dong Xiaoli,Chen Songlin,Shao Changwei,Dong Xiaoli,Ji Xiangshan. 2011

[3]Morphology, sex steroid level and gene expression analysis in gonadal sex reversal of triploid female (XXX) rainbow trout (Oncorhynchus mykiss). Xu, Gefeng,Huang, Tianqing,Han, Ying,Jin, Xian,Cui, Cunhe,Li, Depeng,Sun, Cong,Mu, Zhenbo.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台