摘要
采用改进的界面铺展———硝酸银染色技术，对公犏牛及公尕里巴牛的减数分裂及联会复合体进行观察，发现Ｆ１ 、Ｆ２ 代杂种公牛的部分精母细胞能够完成减数分裂的全过程，直至出现精子。但是，Ｆ２ 代减数分裂和精子发生状况较Ｆ１ 代有所改善。杂交后代个体间的可育程度存在差异。有一头Ｆ３
The meiosis and synaptonemal complex of male pian niu and male Galiba cattle were observed Using modified layer spreading and Ag-NOR staining method. The results indicated that some of the spermatocytes of F 1 and F 2 crossbreds could complete the whole process of meiosis and produce normal sperm. however, the meiosis and spermatogenesis of F 2 were improved compared with F 1. The difference in fertility of individual crossbreds was noticed. A F 3 bull showed nearly normal function of spermatogenesis.
出处
《黄牛杂志》
1999年第5期12-15,共4页
Journal of Yellow Cattle Science
基金
国家自然科学基金
关键词
公犏牛
尕里巴牛
减数分裂
雄性不育
male pian niu
galiba cattle
meiosis, synaptonrmal complex
spermatogenesis
interspecies crossing
