研究者情報

アカゾメ　ヤスヒサ   AKAZOME YASUHISA   赤染康久    所属   医学部医学科 解剖学（生物学）    職種   講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Atlas of the telencephalon based on cytoarchitecture, neurochemical markers, and gene expressions in Rhinogobius flumineus [Mizuno, 1960].
掲載誌名	正式名：Journal of Comparative Neurology 略　 称：J. Comp. Neurol.
掲載区分	国外
出版社名	Wiley
巻・号・頁	527(4),874-900頁
著者・共著者	Kawaguchi M, Hagio H, Yamamoto N, Matsumoto K, Nakayama K, Akazome Y, Izumi H, Tsuneoka Y, Suto F, Murakami Y, Ichijo H.
発行年月	2019/03
概要	Gobiida is a basal subseries of percomorphs in teleost fishes, holding a useful position for comparisons with other orders of Percomorpha as well as other cohort of teleosts. Here, we describe a telencephalic atlas of a Gobiida species Rhinogobius flumineus (Mizuno, Memoirs of the College of Science, University of Kyoto, Series B: Biology, 1960; 27, 3), based on cytoarchitectural observations, combined with analyses of the distribution patterns of neurochemical markers and transcription factors. The telencephalon of R. flumineus shows a number of features distinct from those of other teleosts. Among others, the followings were of special note. (a) The lateral part of dorsal telencephalon (Dl), which is known as a visual center in other teleosts, is composed of as many as seven regions, some of which are conspicuous, circumscribed by cell plates. These subdivisions of the Dl can be differentiated clearly by differential soma size and color with Nissl‐staining, and distribution patterns of neural markers. (b) Cell populations continuous with the ventral region of dorsal part of ventral telencephalon (vVd) exhibit extensive dimension. Especially, portion 1 of the central part of ventral telencephalon appears to represent a cell population laterally translocated from the vVd, forming a large cluster of small cells that penetrate deep into the central part of dorsal telencephalon. (c) The magnocellular subdivision of dorsal part of dorsal telencephalon (Ddmg) contains not only large cells but also vglut2a‐positive clusters of small cells that cover a wide range of the caudal Ddmg. Such clusters of small cells have not been observed in the Ddmg of other teleosts.