三倍体湘云鲫繁殖季节的性腺结构观察

刘少军; 胡芳; 周工建; 张轩杰; 何晓晓; 冯浩; 刘筠

三倍体湘云鲫繁殖季节的性腺结构观察

湖南师范大学生命科学学院, 长沙410081

基金项目:

湖南省科委重点项目(01-961-08)

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- 收稿日期: 1999-12-28
- 修回日期: 2000-01-21
- 发布日期: 2000-07-24

GONADAL STRUCTURE OF TRIPLOID CRUCIAN CARP PRODUCED BY CROSSING ALLOTETRAPLOID HYBRIDS OF CARASSIUM AURATUS RED VAR.(♀)×CYPRINUS CARPIO(♂)WITH JAPANESE CRUCIAN CARP(CARASSIUS AURATUS CAVIERI T. ET S)

College of Life Sciences, Hunan Normal University, Changsha 410081

摘要

摘要: 在繁殖季节解剖 37尾 1龄和 16尾 2龄湘云鲫，用光镜和电镜观察了湘云鲫的性腺结构。在湘云鲫的性腺部位有三种类型的结构：(1)精巢型：精巢小叶内分布有许多精子细胞，精子细胞呈退化现象，没有发现有正常成熟精子。(2)卵巢型：该类型性腺的大部分为体积较小、分化程度较低的呈囊状排列的细胞，在这些小细胞中镶嵌着少量初级卵母细胞和体积较大的退化的卵母细胞。(3)脂肪型：该类型的性腺部位仅有两条脂肪组织，既没有卵巢结构，也没有精巢结构。上述三种性腺结构证明三倍体湘云鲫是不育的。
- 异源四倍体鱼 /
- 三倍体鱼 /
- 性腺
Abstract: During breeding season (in April), three types of gonadal structure of triploid crucian carp, produced by crossing F3-F8, allotetraploids (♂) of red crucian carp (Carassium auratus red var.) (♀) × common carp (Cyprinus carpio L.) (♂) with Japanese crucian carp (Carassius auratus Cavieri T.et S) (♀), were found and observed under light and electron microscope.The first type was the testis that consisted of many lobules in which there were numerous spermatides.Some degenerated spermatides were found and no mature spermatozoon was observed.The second type was the ovary-like gonad consisting of many nests of small undeveloped cells and a few small growing oocytes as well as enlarged and degenerated oocytes.The third type was the fat tissue, in which case, only two strips of fat tissue located on the gonadal places, neither testis nor ovary being observed.
- Allotetraploid fish /
- Triploid fish /
- Gonad

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参考文献(19)

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三倍体湘云鲫繁殖季节的性腺结构观察

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GONADAL STRUCTURE OF TRIPLOID CRUCIAN CARP PRODUCED BY CROSSING ALLOTETRAPLOID HYBRIDS OF CARASSIUM AURATUS RED VAR.(♀)×CYPRINUS CARPIO(♂)WITH JAPANESE CRUCIAN CARP(CARASSIUS AURATUS CAVIERI T. ET S)

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