| 长牡蛎二倍体和三倍体生殖腺发育的组织学观察 |
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| 引用本文： | 曾志南,林琪,吴建绍,陈朴贤,陈木.长牡蛎二倍体和三倍体生殖腺发育的组织学观察[J].台湾海峡,1999,18(3):332-336,T003. |
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| 作者姓名： | 曾志南 林琪 吴建绍 陈朴贤 陈木 |
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| 作者单位： | 福建省水产研究所,厦门,361012 |
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| 基金项目： | 农业部重点科研项目!（95－B－96－02－02－02） |
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| 摘 要： | 对长牡蛎二倍体和三倍体生殖腺涂片检查结果表明，三倍体生殖腺发育较二倍体差，三倍体成熟卵母细胞和细胞核的体积分别是二倍体的１．６４和１．４４倍。组织切片检查结果，二倍体生殖腺发育正常，三倍体生殖腺发育受阻，大部分停留在增殖期的休止期，一部分虽发育至生长期和成熟期，但与同一发育期一二倍体比较，生殖腺发育差。三倍体雌性生殖腺发育较雌性好，三倍体雌雄性比为２．６２：１，在所取的样品中到３个雌雄同体个体。
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| 关 键 词： | 长牡蛎 二倍体 三倍体 生殖腺 组织学 牡蛎 |
Histological observation on gonadal development in diploid and triploid Crassostrea gigas |
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| Zeng Zhinan,Lin Qi, Wu Jianshao,Chen Puxian, Chen Mu.Histological observation on gonadal development in diploid and triploid Crassostrea gigas[J].Journal of Oceanography In Taiwan Strait,1999,18(3):332-336,T003. |
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| Authors: | Zeng Zhinan Lin Qi Wu Jianshao Chen Puxian Chen Mu |
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| Abstract: | Gonadal smears were under observation for diploid and triploid oyster, Crassostrea gigas. The result revealed that gonad in triploids showed poor development relative to diploids,the volume of mature oocytes and their nuclei of triploids being 1. 64 and 1. 44 times larger than those of diploids. Histological sections presented that unlike diploids, gonadal development was tetarded in triploids, of which the majority remained at stages of proliferation and spent,and only some of them developed to growth and mature stages poorly relative to the same development stage diploids. Gonad of male triploid was better developed than that of female triploid. Three hermaphrodites were observed in triploids sampled. in which the sex ratio was female 2. 62: male 1. |
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| Keywords: | Crassostrea gigas diploid triploid gonad histology |
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