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Sex steroid changes during temperature-induced gonadal differentiation in Paralichthys olivaceus (Temminck & Schegel, 1846)
Sun, P.1; You, F.2; Ma, D.2; Li, J.2; Zhang, P.2; You, F
2013-08-01
发表期刊JOURNAL OF APPLIED ICHTHYOLOGY
ISSN0175-8659
卷号29期号:4页码:886-890
文章类型Article
摘要Sex steroid changes during temperature-induced gonadal differentiation were evaluated in the olive flounder, Paralichthys olivaceus. Larvae were reared at 21 +/- 0.5 degrees C, 24 +/- 0.5 degrees C and 28 +/- 0.5 degrees C from day 40 post-hatching (dph) to 90 dph. The proportion of males was 61.1, 76.7, 87.8 and 47.8% in 21 degrees C, 24 degrees C, 28 degrees C and in control groups, respectively. Gonadal differentiation was circa 65 dph, when fishes were a mean 39 mm total length (TL). The gonads developed faster when fishes were reared in higher temperatures. Radioimmunoassay (RIA) analyses indicated that the level of estradiol-17 beta (E2) changed during the period of gonadal differentiation and peaked at an onset of ovarian differentiation in all groups. Compared with fish in control groups, the levels of E2 were lower in thermal-treated groups, especially in the highest temperature groups. The present results indicate that E2 plays a major role in the process of ovarian differentiation, and suggest that temperature-induced masculinization in P. olivaceus is mainly due to a decrease in the E2 level during the period of ovarian differentiation.; Sex steroid changes during temperature-induced gonadal differentiation were evaluated in the olive flounder, Paralichthys olivaceus. Larvae were reared at 21 +/- 0.5 degrees C, 24 +/- 0.5 degrees C and 28 +/- 0.5 degrees C from day 40 post-hatching (dph) to 90 dph. The proportion of males was 61.1, 76.7, 87.8 and 47.8% in 21 degrees C, 24 degrees C, 28 degrees C and in control groups, respectively. Gonadal differentiation was circa 65 dph, when fishes were a mean 39 mm total length (TL). The gonads developed faster when fishes were reared in higher temperatures. Radioimmunoassay (RIA) analyses indicated that the level of estradiol-17 beta (E2) changed during the period of gonadal differentiation and peaked at an onset of ovarian differentiation in all groups. Compared with fish in control groups, the levels of E2 were lower in thermal-treated groups, especially in the highest temperature groups. The present results indicate that E2 plays a major role in the process of ovarian differentiation, and suggest that temperature-induced masculinization in P. olivaceus is mainly due to a decrease in the E2 level during the period of ovarian differentiation.
学科领域Fisheries ; Marine & Freshwater Biology
DOI10.1111/jai.12128
URL查看原文
收录类别SCI
语种英语
WOS研究方向Fisheries ; Marine & Freshwater Biology
WOS类目Fisheries ; Marine & Freshwater Biology
WOS记录号WOS:000321436500032
WOS关键词TILAPIA OREOCHROMIS-NILOTICUS ; WATER TEMPERATURE ; JAPANESE FLOUNDER ; P450 AROMATASE ; FISH ; MASCULINIZATION ; ENVIRONMENT ; EXPRESSION ; TELEOSTEI ; DYNAMICS
WOS标题词Science & Technology ; Life Sciences & Biomedicine
引用统计
被引频次：17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/16630
专题实验海洋生物学重点实验室
通讯作者You, F
作者单位1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Minist Agr, Lab Marine & Estuarine Fisheries, Shanghai, Peoples R China
2.Chinese Acad Sci, Key Lab Expt Marine Biol, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Sun, P.,You, F.,Ma, D.,et al. Sex steroid changes during temperature-induced gonadal differentiation in Paralichthys olivaceus (Temminck & Schegel, 1846)[J]. JOURNAL OF APPLIED ICHTHYOLOGY,2013,29(4):886-890.
APA Sun, P.,You, F.,Ma, D.,Li, J.,Zhang, P.,&You, F.(2013).Sex steroid changes during temperature-induced gonadal differentiation in Paralichthys olivaceus (Temminck & Schegel, 1846).JOURNAL OF APPLIED ICHTHYOLOGY,29(4),886-890.
MLA Sun, P.,et al."Sex steroid changes during temperature-induced gonadal differentiation in Paralichthys olivaceus (Temminck & Schegel, 1846)".JOURNAL OF APPLIED ICHTHYOLOGY 29.4(2013):886-890.
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