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Biology II: Mouse, Zebrafish, and Chick
Zebrafish Development in the First 24 Hours
Description
Zebrafish development moves quickly through the first 24 hours after fertilization. The early embryo is transparent, which makes it easy to see tissue changes and cell movement under the microscope. Zebrafish are also useful in genetics because researchers can change gene expression and watch how it affects a vertebrate that...
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Transcript
斑马鱼胚胎拥有许多特性，使得它成为发育生物学家们最喜欢的生物模型。它们的快速、外部发育以及透明的身体使得它们便于观察。另外，斑马鱼胚胎利于物理和基因操作，便于研究人员分解控制发育过程的信号。本视频将会概述斑马鱼的生命周期、胚胎的早期发育、成年斑马鱼的培育、以及重点介绍几种利用斑马鱼胚胎发育的技术。
首先，让我们重温一下斑马鱼发育过程的基本阶段。斑马鱼的生命周期可以分为四个阶段:胚胎、幼虫、少年期和成年期。从受精卵到成年期的全部生命周期大约是90天。
当斑马鱼的胚胎在28摄氏度培养的时候，其早期的发育是迅速而可预测的。所以可以用受精后的小时数或者天数来定义发育阶段（通常简写为h...
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