小鼠卵母细胞去核方法的研究

被引:2
作者
谭景和
徐立滨
吴光明
张秋明
周琪
秦鹏春
机构
[1] 东北农学院生物工程系
[2] 东北农学院生物工程系 哈尔滨
[3] 哈尔滨
关键词
细胞核移植; 去核; 染色体制备; 卵母细胞; 小鼠;
D O I
10.19720/j.cnki.issn.1005-9369.1993.03.006
中图分类号
学科分类号
摘要
用 McGrath 和 Solter 的去核方法和改进的胚胎染色体制备技术,研究小鼠卵母细胞去核的基本方法及吸出的胞质量和极体的有无对去核率的影响。实验表明:(1)小鼠卵母细胞透明带弹性很差,去核操作成功率仅53.8%;(2)制备卵母细胞染色体,无需用秋水仙素等处理,直接经2~3min 低渗处理便可使第2次减数发裂中期染色体充分展开;(3)小鼠卵母细胞去核时抽1/4胞质的染色体全部去除率(49%)和抽1/3胞质的(54%)差异未达到显著水平(P>0.05);(4)注射 HCG 后15~16h 获取的小鼠卵母细胞,只有1/3左右具有明显的第1极体;抽取无极体卵母细胞之卵周隙较大一侧的细胞质,去核率与见极体卵母细胞的无明显差异。
引用
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页码:237 / 244
页数:8
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