Possible multiple evolution of indirect telencephalo-cerebellar pathways in teleosts: studies in Carassius auratus and Pantodon buchholzi
Possible multiple evolution of indirect telencephalo-cerebellar pathways in teleosts: studies in Carassius auratus and Pantodon buchholzi
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硬骨鱼间接端脑-小脑通路可能的多重进化：对鲫鱼和斑齿鱼的研究
DOI：
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发表时间：
2004
影响因子：
3.6
通讯作者：
D. L. Meyer
中科院分区：
文献类型：
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作者：
M. Wullimann;D. L. Meyer
在脊椎动物中，端脑-桥脑系统仅存在于鸟类和哺乳动物中。然而，硬骨鱼类间脑和中脑中的三个核（类似于脑桥）已被指出代表端脑和小脑之间的中继站。由于这些核中的两个（肾小球背侧核、背侧被盖核）仅在高度衍生的电感应斑鸠鱼中被描述，因此我们研究了两种非电感应硬骨鱼金鱼鲫鱼和淡水蝴蝶鱼 Pantodon buchholzi 的端脑连接，以及仅在后一种物种中的小脑连接，因为对于 C. auratus 来说，这些连接已经建立。辣根过氧化物酶示踪表明，C. auratus 具有背侧被盖核和副连合核，这两个核都是端脑受体并投射到小脑，并且 P. buchholzi 具有具有这种连接的背侧前肾小球核。这些结果扩展了我们对硬骨鱼端脑-小脑系统分布的了解，从而扩展了系统发育的知识。与四足动物类似，硬骨鱼似乎多次独立发育出端脑-小脑系统。
Among vertebrates, telencephalo-pontine systems exist only in birds and mammals. However, three nuclei in the diencephalon and mesencephalon of teleost fishes have been indicated — analogous to the pons — to represent relay stations between telencephalon and cerebellum. Since two of these nuclei (dorsal preglomerular nucleus, dorsal tegmental nucleus) have only been described in the highly derived, electrosensory mormyrids, we investigated telencephalic connections in two nonelectrosensory teleosts, the goldfish Carassius auratus and the freshwater butterflyfish Pantodon buchholzi, and cerebellar connections only in the latter species, since for C. auratus these connections are already established. Horseradish peroxidase tracing reveals that C. auratus has a dorsal tegmental nucleus and a paracommissural nucleus both of which are telencephalo-recipient and project to the cerebellum, and that P. buchholzi has a dorsal preglomerular nucleus with such connections. These results extend our knowlegde of the distribution and, therefore, the phylogeny of telencephalo-cerebellar systems in teleosts. Similar to tetrapods, teleosts appear to have developed telencephalo-cerebellar systems several times independently.
DOI：
10.1159/000115319
发表时间：
1990
期刊：
Brain, behavior and evolution
影响因子：
--
作者：
Striedter,GF
通讯作者：
Striedter,GF