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RETINOIC ACID-INDUCED DUPLICATION OF THE ZEBRAFISH RETINA
被引:93
|作者:
HYATT, GA
[1
]
SCHMITT, EA
[1
]
MARSHARMSTRONG, NR
[1
]
DOWLING, JE
[1
]
机构:
[1] HARVARD UNIV,DEPT CELLULAR & DEV BIOL,CAMBRIDGE,MA 02138
来源:
关键词:
D O I:
10.1073/pnas.89.17.8293
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Exogenous treatment of zebrafish embryos with retinoic acid induces a duplication of the retinas during development. These effects occur only when retinoic acid is applied within a 2-hr period prior to and during the initial formation of the optic primordia, and they are concentration-dependent. Light microscopic examination reveals that the second retina derives from cells in the ventral region of the developing eyecup that normally become pigment epithelial cells. Two distinct ganglion cell fields are usually observed in eyes with duplicated retinas. Bundles of axons from each ganglion cell field join as they leave the eye and innervate the contralateral tectum.
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页码:8293 / 8297
页数:5
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