Molecular Cloning of cDNAs Encoding Pituitary Glycoprotein Hormone .ALPHA., FSH .BETA. and LH .BETA. Subunits in Ayu, Plecoglossus altivelis.
スポンサーリンク
概要
- 論文の詳細を見る
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.
- 社団法人日本動物学会の論文
- 2001-09-20
著者
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Soyano K
Nagasaki Univ. Nagasaki
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Soyano Kiyoshi
Marine Research Institute Nagasaki University
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Soyano Kiyoshi
Institute For East China Sea Research Nagasaki University
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Soyano Kiyoshi
Graduate School Of Science And Technology
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Nagae Masaki
Faculty of Environmental Studies, Nagasaki University
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Saito Koji
Division Of Marine Biosciences Graduate School Of Fisheries Sciences Hokkaido University
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Ito Fuminari
Freshwater Fisheries And Environment Division National Research Institute Of Fisheries Science
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Nagae M
Faculty Of Environmental Studies Nagasaki University
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Nagae Masaki
Faculty Of Environmental Studies Nagasaki University
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Yoshida Daisaku
Marine Research Institute Nagasaki University
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Kohra S
Faculty Of Environmental Sciences Nagasaki University
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