| CYTOLOGICAL COMPARISON OF GAMETOGENESIS OF SCALLOPS, ARGOPECTEN IRRADIANS AND CHLAMYS FARRERI |
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| 作者姓名： | 董新红 刘保忠 吴长功 相建海 |
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| 作者单位： | InstituteofOceanology,ChineseAcademyofSciences,Qingdao266071,China |
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| 摘 要： | Histological characteristics of gametogenesis of two kinds of scallops, gonochoric Chinese scallop, Chlamys farreri and hermaphroditic bay scallop, Argopecten irradians were investigated in this study. Spermatogenesis in C. farreri has different developmental stages: spermatogonia, primary spermatocyte, second spermatocyte, spermatid and spermatozoon. A large number of same developmental stage spermatic cells converge at a definite area of the testis. Premeiotic, previtellogenic and vitellogenic oocytes can be found during oogenesis in C. farreri, where oocyte distribution is obviously irregular. The A. irradians gonad consists of two different parts in one individual: one part functions as testis, the other as ovary. Between these two parts is a special appearance area, where a large number of spermatic cells are bound with two layers of acellular substance with many oocytes in it.
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| 关 键 词： | 扇贝 配子发育 组织学 雌雄同体 精子发生 发展阶段 生殖细胞 睾丸 |
| 收稿时间： | 5 July 2000 |
Cytological comparison of gametogenesis of scallops,<Emphasis Type="Italic">Argopecten irradians</Emphasis> and<Emphasis Type="Italic">Chlamys farreri</Emphasis> |
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| Dong?Xin-hong,Liu?Bao-zhong,Wu?Chang-gong,Xiang?Jian-hai.CYTOLOGICAL COMPARISON OF GAMETOGENESIS OF SCALLOPS, ARGOPECTEN IRRADIANS AND CHLAMYS FARRERI[J].Chinese Journal of Oceanology and Limnology,2002,20(3):244-247. |
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| Authors: | Dong Xin-hong Liu Bao-zhong Wu Chang-gong Xiang Jian-hai |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China |
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| Abstract: | Histological characteristics of gametogenesis of two kinds of scallops, gonochoric Chinese scallop,Chlamys farreri and hermaphroditic bay scallop,Argopecten irradians were investigated in this study. Spermatogenesis inC. farreri has different developmental stages: spermatogonia, primary spermatocyte, second spermatocyte, spermatid and spermatozoon.
A large number of same developmental stage spermatic cells converge at a definite area of the testis. Premeiotic, previtellogenic
and vitellogenic oocytes can be found during oogenesis inC. farreri, where oocyte distribution is obviously irregular. TheA. irradians gonad consists of two different parts in one individual: one part functions as testis, the other as ovary. Between these
two parts is a special appearance area, where a large number of spermatic cells are bound with two layers of acellular substance
with many oocytes in it.
Contribution No. 4254 from the Institute of Oceanology, Chinese Academy of Sciences Project No. 39700017 supported by the
NSFC. |
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| Keywords: | gametogenesis Argopecten irradians Chlamys farreri |
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