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Genetics
从斑马鱼精子细胞中培养染色体传播
从斑马鱼精子细胞中培养染色体传播
JoVE Journal
Genetics
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JoVE Journal Genetics
Preparation of Meiotic Chromosome Spreads from Zebrafish Spermatocytes

从斑马鱼精子细胞中培养染色体传播

Full Text
8,517 Views
08:46 min
March 3, 2020

DOI: 10.3791/60671-v

Yana P. Blokhina1,2, Ivan Olaya1,2, Sean M. Burgess1

1Department of Molecular and Cellular Biology,University of California, Davis, 2Integrative Genetics and Genomics Graduate Group,University of California, Davis

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Please note that some of the translations on this page are AI generated. Click here for the English version.

核表面扩散是研究染色体事件的重要工具。在这里,我们演示了一种在斑马鱼精子细胞的前期I期间制备和可视化的中端染色体的方法。

斑马鱼正在成为研究美因病染色体事件的优秀脊椎动物模型,包括同源染色体配对、突触和重组。这种核表面扩散协议使我们能够使用超分辨率显微镜来可视化美的染色体结构的关键特征。研究人员预计,与其他斑马鱼传播协议一样,每张幻灯片上有数百个分布良好的核,碎片更少。

这个程序最具技术挑战性的部分是解剖斑马鱼睾丸,因为它靠近皮肤,也连接到其他器官。可视化解剖程序将使研究人员知道当看到嵌入在动物组织中的性腺时会发生什么。对雄性斑马鱼进行安乐死后,用小剪刀一次斩首一条鱼,然后用微型剪刀沿着腹中线切割,露出体腔。

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遗传学 问题 157 梅西斯 斑马鱼 睾丸 染色体传播 突触复合物 端粒 PNA探针 杂交 免疫荧光显微镜 超分辨率显微镜 抗体染色 原位杂交 FISH

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