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| 彭泽鲫雌核发育的细胞学研究 | |
| 引用本文： | 舒琥,张海发,陈湘麟. 彭泽鲫雌核发育的细胞学研究[J]. 动物学杂志, 2000, 35(5): 12-15 |
| 作者姓名： | 舒琥 张海发 陈湘麟 |
| 作者单位： | 1. 广州市教育学院生物学系,广州,510030 2. 广东省海洋与水产厅科教处,广州,510222 3. 华南师范大学生物学系,广州,510631 |
| 基金项目： | 广东省博士启动基金，， |
| 摘 要： | 通过对彭泽鲫♀×彭泽鲫♂、彭泽鲫♀×尖鳍鲤♂“杂交”后代的细胞学观察发现 ,同源与异源精子在彭泽鲫卵中的发育情况基本一致。精子入卵后一般呈固缩状态 ,不解凝 ,不形成雄性原核 ,但都能看到未解凝精核与雌性原核接触 (未融合 )的现象。刚产出的成熟卵子没有看到极体 ,但受精 1 0分钟有极体排出 ,是卵子发育排出的惟一极体。根据观察结果 ,彭泽鲫在细胞学上表现出典型的雌核发育行为特征 ,是以雌核发育方式繁殖的种群 |
| 关 键 词： | 彭泽鲫 雌核发育 细胞学 同源精子 异源精子 |
A Cytological Studies on Gynogenesis of Pengze Crucian Carp |
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| SHU Hu,ZHANG Hai-Fa,CHEN Xiang-Lin. A Cytological Studies on Gynogenesis of Pengze Crucian Carp[J]. Chinese Journal of Zoology, 2000, 35(5): 12-15 | |
| Authors: | SHU Hu ZHANG Hai-Fa CHEN Xiang-Lin |
| Abstract: | Eggs stimulated by the Pengze crucian carp (Carassius auratus) and the sharpfin carp (Cyprinus acutidorsalis) sperms were studied.The results showed that either homologous or heterologous sperm nucleus had the same developmental process:the sperm nucleus remained compact after entering the Pengze crucian carp's egg, it did not undergo decondensation or transform into male pronuleus (but no amphimixis).About 10 minutes after spawning only one polar body was extruded from the ripe egg cells.The results indicated that the Pengze crucian carp shows the typical gynogenetic characteristics on cytological level and the carps do reproduce by gynogenesis. |
| Keywords: | Pengze crucian carp Gynogenesis Cytology |
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