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GU Wei WANG Tingzheng ZHU Bicai
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顾 蔚, 王廷正, 朱必才
Abstract: Synaptonemal complexes (SC) of mandarin vole ( Microtus mandarinus ) have been analyzed by electron microscopy with surface-spread and silver-stained preparation. Sex chromosome axes are deep dyed andsynapsis in early pachtene. In middle pachtene the almost whole Y is fully paired with about three-eighth the X and X axis forms a hairpin-likefold. The disappearance of sex chromosome is forestalled as compared with autosomal SC. Mechanism of homologous and nonhomologous pairing ofsex chromosome has been discussed.
Key words: Mandarin vole( Microtus mandarinus ), Synaptonemal complex, Sex chromosomes pairing
摘要: 以界面铺展——硝酸银染色方法制备棕色田鼠性染色体联会复合体标本, 电镜观察了性染色体联会复合体的形成过程。性染色体轴深染加粗, 在早粗线期开始联会; 中粗线期 Y轴以其全长与X轴约3/8 配对, X轴形成发夹状结构; 晚粗线期先于常染色体解联会。并对性染色体间同源性与非同源性配对机制作了探讨。
关键词: 棕色田鼠, 联会复合体, 性染色体配对
GU Wei WANG Tingzheng ZHU Bicai. STUDY ON THE MORPHOLOGY OF SEX CHROMOSOMES PAIRING OF THE SYNAPTONEMAL COMPLEXES IN MANDARIN VOLE (MICROTUS MANDARINUS)[J]. .
顾 蔚, 王廷正, 朱必才. 棕色田鼠性染色体联会复合体配对的形态学研究[J]. .
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https://www.mammal.cn/EN/Y1999/V19/I2/150