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Developmental Origin of Diencephalic Sensory Relay Nuclei in Teleosts
https://repo.qst.go.jp/records/44781
https://repo.qst.go.jp/records/447816b550254-f3b9-4311-9240-154b88cd59c9
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-01-31 | |||||
| タイトル | ||||||
| タイトル | Developmental Origin of Diencephalic Sensory Relay Nuclei in Teleosts | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Ishikawa, Yuuji
× Ishikawa, Yuuji× Yamamoto, Naoyuki× Yoshimoto, Masami× Yasuda, Takako× Maruyama, Kouichi× Kage, Takahiro× Takeda, Hiroyuki× Itou, Hironobu× 石川 裕二× 丸山 耕一× 景 崇洋 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We propose here a novel interpretation of the embryonic origin of cells of deiencephalic sensory relay nuclei in teleosts based on our recent studies of gene expression patterns in the medaka (Oryzias latipes) embryonic brain and comparative hodological studies. It has been proposed that the diencephalic sensory relay sysytem in teleosts is unique among vertebrates. Teleost relay nuclei, the preglomerular complex (PG), have been assumed to originate from the basal plate (the posterior tuberculum) of the diencephalon, whereas relay nuclei in mammals are derived from the alar plate (dorsal thalamus) of the diencephalon.Our results using in situ hybridizaion show, however, that many pax6-or dlx2-positive cells migrate laterally and ventrocaudally from the diencephalic alar plate to the basal plate during development. Massive clusters of the migrated alar cells become localized in the mantle layer lateral to the posterior tubercular neuroepithelium, from which main nuclei of the PG appear to differentiate. We therefore consider most if not al neurons in the PG to be of alar, not basal, origin. Thus, the releost PG, at least in pact, can be regarded as migrated alar nuclei. Developmental and hodological data strongly suggest that the teleost PG is homologous to part of the mammalian dorsal thalamus. The organization and origi of the diencephalic sensory relay system might have been conserved across vertebrates. | |||||
| 書誌情報 |
Brain, Behavior and Evolution 巻 69, 号 2, p. 87-95, 発行日 2007-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0006-8977 | |||||
