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家蚕染色体的C-带及其扫描电镜的初步研究
引用本文:李红梅,徐元康.家蚕染色体的C-带及其扫描电镜的初步研究[J].汕头大学学报(自然科学版),1998,13(1):36-40.
作者姓名:李红梅  徐元康
作者单位:韩山师范学院化生系!潮州,521041,韩山师范学院化生系!潮州,521041
摘    要:以家蚕早期胚为材料,对有丝分裂染色体进行了C-带的研究以及扫描电镜的观察.结果表明大多数分裂相都显示染色体上有C-带,其中4条染色体上常有C-带深染;性染色体中Z染色体亚端部普遍显示有C-带.表明家蚕染色体C-带可能属于非着丝粒型C-带,与其弥散型着丝粒理论相辅.

关 键 词:家蚕  染色体  C-带

Studies on C-bands of the bombyx chromosome under scanning electron microscope (SEM)
Li Hongmei,Xu Yuankang.Studies on C-bands of the bombyx chromosome under scanning electron microscope (SEM)[J].Journal of Shantou University(Natural Science Edition),1998,13(1):36-40.
Authors:Li Hongmei  Xu Yuankang
Institution:Department of Chemistry and Biology. Hanshan Teachers College. Chaozhou. 521041
Abstract:In this paper arc Investigated the C-bands of chromosomes from Bombyx mori L. under scanning electron microscope (SEM ). Results obtained showed that in most of the mitotic phases there appeared C- bands on chromosomes, four of which were found to be deeply stained; and that C-bands appeared also on the Z-chromosome subterminals of the sex chromosomes. All this suggested that the C-bands of chromosomes from Bombyx mori L. might be of the non-centromere type, much in line with the theory of holocentric chromosome.
Keywords:Bombyx mori L    chromosome  C-band
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