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学科主题: Fisheries; Marine & Freshwater Biology
题名: EST-based identification of genes expressed in the hypothalamus of male orange-spotted grouper (Epinephelus coioides)
作者: Zhou, Li; Yao, Bo; Xia, Wei; Li, Chuang-Ju; Wang, Yang; Shi, Yao-Hua; Gui, Jian-Fang
通讯作者: Gui, JF, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Wuhan Ctr Dev Biol, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China
关键词: expressed sequence tags ; hypothalamus ; grouper ; Epinephelus coioides ; sex inversion
刊名: AQUACULTURE
发表日期: 2006-06-15
DOI: 10.1016/j.aquaculture.2006.01.022
卷: 256, 期:1-4, 页:129-139
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Wuhan Ctr Dev Biol, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: The orange-spotted grouper, Epinephelus coioides, is an important marine aquaculture fish, but its large-scale aquaculture has been hindered by the rarity of natural males because it is a protogynous hermaphroditic fish. Hypothalamus-pituitary-gonad is an important endocrine axis in regulating reproduction and sex differentiation. To reveal the molecular mechanism of hypothalamic physiological functions, we performed he studies on identification of genes expressed in the hypothalamus of male orange-spotted grouper using EST and RT-PCR strategy. A total of 1006 ESTs were sequenced, and 402 (39.96%) clones were identified as known genes and 604 (60.04%) as unknown genes. The 402 clones of known gene products represent transcripts of 18 1 genes. Moreover, the expression patterns of 26 unknown genes were analyzed in various tissues, such as liver, kidney, spleen, fat, heart, muscle, pituitary, hypothalamus, telencephalon, cerebellum, midbrain, medulla oblongata, ovary and testes. Five different categories of expression patterns were observed from them. Several unknown ESTs, such as DN551996, DN551998, DN552082, and DN552070, were detected to be hypothalamus-specific, brains-specific, or hypothalamus and gonad-specific genes. Interestingly, DN551996, not only exhibiting expression differences between ovary and testis, but also showing sex-dependent differences in hypothalamus of grouper, might play significant role in grouper reproduction or sex inversion. Further functional studies on these genes will provide more information on molecule regulation mechanism of sex inversion in groupers. (c) 2006 Elsevier B.V All fights reserved.
英文摘要: The orange-spotted grouper, Epinephelus coioides, is an important marine aquaculture fish, but its large-scale aquaculture has been hindered by the rarity of natural males because it is a protogynous hermaphroditic fish. Hypothalamus-pituitary-gonad is an important endocrine axis in regulating reproduction and sex differentiation. To reveal the molecular mechanism of hypothalamic physiological functions, we performed he studies on identification of genes expressed in the hypothalamus of male orange-spotted grouper using EST and RT-PCR strategy. A total of 1006 ESTs were sequenced, and 402 (39.96%) clones were identified as known genes and 604 (60.04%) as unknown genes. The 402 clones of known gene products represent transcripts of 18 1 genes. Moreover, the expression patterns of 26 unknown genes were analyzed in various tissues, such as liver, kidney, spleen, fat, heart, muscle, pituitary, hypothalamus, telencephalon, cerebellum, midbrain, medulla oblongata, ovary and testes. Five different categories of expression patterns were observed from them. Several unknown ESTs, such as DN551996, DN551998, DN552082, and DN552070, were detected to be hypothalamus-specific, brains-specific, or hypothalamus and gonad-specific genes. Interestingly, DN551996, not only exhibiting expression differences between ovary and testis, but also showing sex-dependent differences in hypothalamus of grouper, might play significant role in grouper reproduction or sex inversion. Further functional studies on these genes will provide more information on molecule regulation mechanism of sex inversion in groupers. (c) 2006 Elsevier B.V All fights reserved.
关键词[WOS]: CATFISH ICTALURUS-PUNCTATUS ; SALMON SALMO-SALAR ; CHANNEL CATFISH ; SEQUENCE TAGS ; SEX-CHANGE ; PROTOGYNOUS GROUPER ; TRANSCRIPTOME ANALYSIS ; BRAIN ; LIVER ; SPLEEN
语种: 英语
WOS记录号: WOS:000238394400015
ISSN号: 0044-8486
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8950
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Wuhan Ctr Dev Biol, Inst Hydrobiol,Grad Sch, Wuhan 430072, Peoples R China

Recommended Citation:
Zhou, L; Yao, B; Xia, W; Li, CJ; Wang, Y; Shi, YH; Gui, JF.EST-based identification of genes expressed in the hypothalamus of male orange-spotted grouper (Epinephelus coioides),AQUACULTURE,2006,256(1-4):129-139
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