Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)

The embryonic development of the Mosquito fish(Gambusia affinis) eye lens was investigated using light microscopy .The results indicated that the embryonic development of the lens does not correspond to that of the non spherical lenses of terrestrial vertebrates .This study showed that a very smal...

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Main Author: Baghdad Science Journal
Format: Article
Language:English
Published: University of Baghdad, College of Science for Women 2007-12-01
Series:مجلة بغداد للعلوم
Online Access:http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/832
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author Baghdad Science Journal
author_facet Baghdad Science Journal
author_sort Baghdad Science Journal
collection DOAJ
description The embryonic development of the Mosquito fish(Gambusia affinis) eye lens was investigated using light microscopy .The results indicated that the embryonic development of the lens does not correspond to that of the non spherical lenses of terrestrial vertebrates .This study showed that a very small cavity in the lens vesicle appears during development ,but it differs from that of the mammalian lens. The most important aspect in this study is that ,the posterior edge of the simple cuboidal epithelium which covers the anterior half of the surface of the lens is situated well beyond the equatorial region of the lens .As a result , the germinal and transitional zones became closer to the posterior pole rather than the anterior pole of the lens. This might be an important factor in causing the lens to be spherical rather than being biconvex.
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institution Kabale University
issn 2078-8665
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publishDate 2007-12-01
publisher University of Baghdad, College of Science for Women
record_format Article
series مجلة بغداد للعلوم
spelling doaj-art-a7461938282f4cd3a026f6a6d7903ca42025-08-20T03:35:53ZengUniversity of Baghdad, College of Science for Womenمجلة بغداد للعلوم2078-86652411-79862007-12-014410.21123/bsj.4.4.505-511Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)Baghdad Science JournalThe embryonic development of the Mosquito fish(Gambusia affinis) eye lens was investigated using light microscopy .The results indicated that the embryonic development of the lens does not correspond to that of the non spherical lenses of terrestrial vertebrates .This study showed that a very small cavity in the lens vesicle appears during development ,but it differs from that of the mammalian lens. The most important aspect in this study is that ,the posterior edge of the simple cuboidal epithelium which covers the anterior half of the surface of the lens is situated well beyond the equatorial region of the lens .As a result , the germinal and transitional zones became closer to the posterior pole rather than the anterior pole of the lens. This might be an important factor in causing the lens to be spherical rather than being biconvex.http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/832
spellingShingle Baghdad Science Journal
Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)
مجلة بغداد للعلوم
title Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)
title_full Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)
title_fullStr Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)
title_full_unstemmed Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)
title_short Embryonic Development of Eye Lens in Mosquito fish Gambusia affinis (Baird and Girard, 1853)
title_sort embryonic development of eye lens in mosquito fish gambusia affinis baird and girard 1853
url http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/832
work_keys_str_mv AT baghdadsciencejournal embryonicdevelopmentofeyelensinmosquitofishgambusiaaffinisbairdandgirard1853