Ontogenic Development of Three GnRH Systems in the Brain of a Pleuronectiform Fish, Barfin Flounder(Endocrinology)
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概要
- 論文の詳細を見る
A pleuronectiform fish, the barfin flounder Verasper moseri, has three molecular forms of gonadotropin-releasing hormone (GnRH) in the brain, salmon GnRH (sGnRH), chicken GnRH-II (cGnRH-II) and seabream GnRH (sbGnRH). To elucidate the ontogenic origin of the neurons that produce these GnRH molecules, the development of three GnRH systems was examined by in situ hybridization and immunocytochemistry. Neuronal somata that express sGnRH mRNA were detected first in the vicinity of the olfactory epithelium 21 days after hatching (Day 21), and then in the transitional area between the olfactory nerve and olfactory bulb and the terminal nerve ganglion on Day 28. cGnRH-II mRNA-expressing neuronal somata were first identified in the midbrain tegmentum near the ventricle on Day 7. cGnRH-II-immunoreactive (ir) fibers were first found in the brain on Day 7. sbGnRH mRNA-expressing neuronal somata were first detected in the preoptic area on Day 42. sbGnRH-ir fibers were localized in the preoptic area-hypothalamus, and formed a distinctive bundle of axons projecting to the pituitary on Day 70. These results indicate that three forms of GnRH neurons have separate embryonic origins in the barfin flounder as in other perciform fish such as tilapia Oreochromis niloticus and red seabream Pagrus major. sGnRH, cGnRH-II and sbGnRH neurons derive from the olfactory placode, the midbrain tegmentum near the ventricle and the preoptic area, respectively.
- 社団法人日本動物学会の論文
- 2004-03-25
著者
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AIDA KATSUMI
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Aida Katsumi
Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University
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Aida K
Department Of Aquatic Bioscience Graduate School Of Agricultural And Life Sciences University Of Tok
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Amano M
School Of Marine Biosciences Kitasato University
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Amano Masafumi
School Of Fisheries Sciences Kitasato University Sanriku
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Okubo K
Department Of Aquatic Bioscience Graduate School Of Agricultural And Life Sciences The University Of
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Okubo Kataaki
Department Of Aquatic Bioscience Graduate School Of Agricultural And Life Sciences The University Of
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Aida Katsumi
Department Of Aquatic Bioscience Graduate School Of Agricultural And Life Sciences The University Of
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Aida Katsumi
Department Of Aquatic Bioscience Graduate School Of Agricultural And Sciences The University Of Toky
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Aida Katsumi
Department Of Aquatic Biosciences Graduate School Of Agricultural And Life Sciences The University O
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Oka Yoshitaka
Department Of Biological Sciences Graduate School Of Science The University Of Tokyo
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Oka Yoshitaka
Misaki Marine Biological Station Graduate School Of Science The University Of Tokyo
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YAMANOME Takeshi
Iwate Fisheries Technology Center
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YAMAMORI Kunio
School of Fisheries Sciences, Kitasato University
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Kawaguchi Nanami
Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University
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Okuzawa K
National Research Institute Of Aquaculture
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Okuzawa Koichi
National Research Institute Of Aquaculture Fisheries Research Agency
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Asahina K
Univ. Utrecht Utrecht Nld
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Aida Katsumi
Laboratory Of Aquatic Animal Physiology Graduate School Of Agricultural And Life Sciences The Univer
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Kawaguchi Nanami
Department Of Aquatic Bioscience Graduate School Of Agricultural And Life Sciences The University Of
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Yamamori K
School Of Marine Biosciences Kitasato University
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Yamamori Kunio
School Of Fisheries Science Kitasato University
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Yamanome T
Iwate Fisheries Technology Center
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Yamamori Kunio
School Of Fisheries Sciences Kitasato University
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Oka Yoshitaka
Misaki Marine Biological Station Grad. Sch. Sci. Univ. Of Tokyo
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Aida K
Department Of Aquatic Bioscience Graduate School Of Agricultural And Life Sciences The University Of
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OKA Yoshitaka
Department of Biological Sciences, Graduate School of Science, the University of Tokyo
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