遗传 ›› 1999, Vol. 21 ›› Issue (1): 6-8.

• 论文 • 上一篇    下一篇

中华鳖精母细胞联会复合体的研究

薛妹朗;朱玉芳;张锡然;杜开河;聂刘旺;单祥年 XUI Mei-Lang;ZHU Yu-Fang;ZHANG Xi-Ran;DU Kai-He;NIE Liu-Wang; SHAN Xiang-Nian   

  1. Department of Biology, Nanjing Normal University,Nanjing 210097
  • 收稿日期:1900-01-01 出版日期:1999-02-10 发布日期:1999-02-10

Observation of Synaptonemal Complexes in Trionyx sinensis Spermatocytes by Electron Mycoscopy

  • Received:1900-01-01 Online:1999-02-10 Published:1999-02-10

摘要: 本文以微铺展技术制备中华鳖精母细胞联会复合体标本,经硝酸银染色后电镜观察,分析了SC组型。并与有丝分裂染色体组型相比较,发现二者有着良好的一致性,而且微小染色体的SC结构和着丝粒清晰,未发现形态上有分化的性染色体。中华鳖SC的研究为其细胞遗传学及性别决定机制提供了重要的依据。
Abstract Synaptonemal Complexes (SC) in Trionyx sinensis spermatocytes prepared with micro-spreading technique and silver staining was analyzed by electron microscopy. The meiotic SC karyotype was constructed from 10 cells and compared with mitotic chromosome karyotype. There is a good agreement between them. The structure and kinetochores of micro-chromosomes are very distinctive on each SC. There does not exist differential sex chromosome.

关键词: 减数分裂,  联会复合体, Synaptonemal complex(SC), Trionyx sinensis,  中华鳖 Key words Meiosis, 内含子, 顺式调控元件, nodal基因, 增强子

Key words: Enhancer, Intron, Cis-regulatory element, nodal gene