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JoVE Journal
Developmental Biology
簡体字を使用した初期の器官形成の理解その場でハイブリダイゼーションプロトコルでアフリ...
簡体字を使用した初期の器官形成の理解その場でハイブリダイゼーションプロトコルでアフリ...
JoVE Journal
Developmental Biology
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JoVE Journal Developmental Biology
Understanding Early Organogenesis Using a Simplified In Situ Hybridization Protocol in Xenopus

簡体字を使用した初期の器官形成の理解その場でハイブリダイゼーションプロトコルでアフリカツメガエル

Full Text
39,565 Views
14:50 min
January 12, 2015

DOI: 10.3791/51526-v

Steven J. Deimling1, Rami R. Halabi2,3, Stephanie A. Grover4, Jean H. Wang2,5, Thomas A. Drysdale2,4,5

1Developmental and Stem Cell Biology,Hospital for Sick Children, 2Children's Health Research Institute,University of Western Ontario, 3Department of Physiology and Pharmacology,University of Western Ontario, 4Neurosciences and Mental Health,Hospital for Sick Children, 5Department of Paediatrics,University of Western Ontario

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

Overview

The Xenopus laevis embryo is a valuable model for studying early development due to its large size and ease of manipulation. This article provides a simplified protocol for whole mount in situ hybridization to identify specific organs within the embryo.

Key Study Components

Area of Science

  • Developmental Biology
  • Gene Expression
  • Embryology

Background

  • Xenopus laevis is widely used in developmental studies.
  • The embryo's size facilitates experimental manipulation.
  • Whole mount in situ hybridization is a technique for visualizing gene expression.
  • Understanding gene localization is crucial for developmental biology.

Purpose of Study

  • To demonstrate the expression of a specific gene in an intact embryo.
  • To provide a clear protocol for researchers to follow.
  • To enhance understanding of gene function during early development.

Methods Used

  • Fixation of RNA within the embryo.
  • Hybridization of an antisense RNA probe to the target RNA.
  • Detection of the probe using an antibody coupled to alkaline phosphatase.
  • Visualization of RNA localization through a colorimetric stain.

Main Results

  • Successful localization of gene expression within the embryo.
  • Color reactions indicate specific areas of gene activity.
  • Results correlate with known embryo anatomy.
  • Protocol can be replicated for various genes of interest.

Conclusions

  • The protocol effectively identifies gene expression locations.
  • Xenopus laevis remains a key model for developmental studies.
  • Findings contribute to the understanding of gene function in development.

Frequently Asked Questions

What is whole mount in situ hybridization?
It is a technique used to visualize the expression of specific genes in intact embryos.
Why is Xenopus laevis used in developmental biology?
Its large embryos are easy to manipulate and observe during development.
What are the key steps in the protocol?
Fixing RNA, hybridizing probes, detecting with antibodies, and visualizing with stains.
How can the results be interpreted?
Results show where a gene is expressed based on color reactions in the embryo.
Can this method be used for other genes?
Yes, the protocol can be adapted for various genes of interest.
What is the significance of gene localization?
It helps understand gene function and its role in development.

Xenopus laevisの胚は、その大きなサイズと操作の容易さから、初期発生の研究において非常に有用であり続けています。 このモデルシステムにおける特定の臓器の同定に使用できる、全マウントin situハイブリダイゼーションプロトコルの簡略化されたプロトコルが提供されています。

次の実験の全体的な目標は、特定の遺伝子が無傷の胚のどこに発現しているかを示すことです。これは、第2のステップとして、胚内の所定の位置に局在するRNAを固定することによって達成されます。目的の遺伝子に特異的なアンチセンスRNAプローブを胚内の標的RNAにハイブリダイズします。

このプローブにはエピトープ(通常はジゴゲニン)が含まれており、その後検出できます。次に、アルカリホスファターゼに結合した抗体をRNAプローブ上のエピトープにハイブリダイズし、続いて比色染色を使用します。RNAが胚内のどこに局在しているかを視覚化するために、胚の解剖学的構造の色反応と知識に基づいて、目的の遺伝子が発現する場所を正確に示す結果が得られます。

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