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Molecular Cloning of cDNAs Encoding Pituitary Glycoprotein Hormone .ALPHA., FSH .BETA. and LH .BETA. Subunits in Ayu, Plecoglossus altivelis.


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タイトル: Molecular Cloning of cDNAs Encoding Pituitary Glycoprotein Hormone .ALPHA., FSH .BETA. and LH .BETA. Subunits in Ayu, Plecoglossus altivelis.
著者: Yoshida, Daisaku / Nagae, Masaki / Ito, Fuminari / Soyano, Kiyoshi
発行日: 2001年 9月
出版者: 日本動物学会 / Zoological Society of Japan
引用: Zoological science 18(7) pp.929-936; 2001
抄録: Complementary DNAs (cDNAs) encoding follicle-stimulating hormone (FSH)β, luteinizing hormone (LH)β and glycoprotein hormone (GPH) a subunits were isolated and characterized from ayu pituitary using a PCR technique. The FSHβ, LHβ and GPHα subunit cDNAs were found to be 556, 588 and 621 base pair (bp) long, encoding 384, 432 and 357bp long open reading frames, respectively. The deduced amino acid sequences of the putative mature forms of ayu GPHα and LHβ subunits were on average 63% homologous with those of other teleosts, whereas ayu FSHβ subunit was on average 42% homologous. These results show that ayu has two different types of gonadotropins (FSH and LH), as in other teleosts. FSHβ subunit mRNA was mainly detected during early vitellogenesis and spermatogenesis. In contrast, LHβ subunit mRNA was detected during the late phase of gonadal development, suggesting that the primary function of FSH may be to initiate gametogenesis, while LH may have a role in the development of gametes.
URI: http://hdl.handle.net/10069/21956
ISSN: 02890003
DOI: 10.2108/zsj.18.929
権利: (c) 2001 Zoological Society of Japan
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:220 学術雑誌論文

引用URI : http://hdl.handle.net/10069/21956

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