正常人胚胎绒毛细胞染色体着丝粒点(Cd)变异的研究  

Study on Centromeric Dots Variation of Chorion Tissue

作　　者：王应雄[1] 翁亚光[1] 何俊琳[1] 刘学庆[1] 郑增淳[1] 

机构地区：[1]重庆医科大学遗传优生教研室,副教授四川重庆630046

出　　处：《遗传》1995年第2期1-3,共3页Hereditas（Beijing)

基　　金：国家自然科学基金资助的项目.

摘　　要：我们采用 Cd-NOR 同步银染技术,首次对正常人胚胎绒毛细胞染色体着丝粒点(Cd)变异作了研究,并将绒毛细胞染色体 Cd 变异与正常人外周血淋巴细胞染色体 Cd 变异进行了对比.在本研究中,我们观察到某些染色体存在 Cd 迟滞复制现象,并对此作了讨论.Centromeric dots(Cd)variation of chorion tissue chromosomes were studied by a simultaneous silver staining of both NOR and Cd.Comparison analysis of Cd variation for the chorionic villus samples and peripheral blood samples were carried out.We observe an event of Cd delaying reproduction and dis- cuss the relatoin between the event and X chromosome delaying reproduction as well as chromosomal nondisjunction.

关 键 词：着丝粒点 绒毛细胞 非整倍体 染色体 变异 

分 类 号：Q343.24[生物学—遗传学]