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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Nanometer-Scale Dissection of Chromosomes by Atomic Force Microscopy Combined with Heat-Denaturing Treatment
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Nanometer-Scale Dissection of Chromosomes by Atomic Force Microscopy Combined with Heat-Denaturing Treatment

机译:原子力显微镜结合热变性处理对染色体的纳米级解剖

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摘要

We have developed a method for dissecting chromosome fragments with a size of a few hundred nanometers by atomic force microscopy (AFM). By using this method, we demonstrated reproducible dissections of silkworm chromosomes in the pachytene phase. The dissected fragments were successfully recovered on the cantilever tips, as confirmed by fluorescent microscopy using fluorescent stained chromosomes. To recover dissected chromosome fragments from a larger chromosome, such as the human metaphase chromosome of a somatic cell, heat denaturation was found to be effective. Further improvements in this method may lead to a novel tool for isolating valuable genes and/or investigating local genome structures in the near future.
机译:我们已经开发了一种通过原子力显微镜(AFM)解剖几百纳米大小的染色体片段的方法。通过使用此方法,我们证明了在粗线期相中可复制的家蚕染色体解剖。如荧光显微镜使用荧光染色的染色体所证实的,解剖后的片段成功地在悬臂尖端上回收。为了从较大的染色体(例如体细胞的人中期染色体)中恢复解剖的染色体片段,发现热变性是有效的。该方法的进一步改进可能会导致在不久的将来用于分离有价值的基因和/或研究局部基因组结构的新型工具。

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