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在三个新热带鱼类物种中,原始生殖细胞的可追溯性旨在进行遗传保护行动
Jenyffer Rosero1,2, Paulo Sérgio Monzani3,4, Giselle Pessanha Pessoa3,4
1Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, São Paulo, Brazil. jmroseroa@yahoo.com.
Fish physiology and biochemistry
|December 7, 2023
概括
这项研究成功地使用Pseudopimelodus mangurus ddx4 3'UTR序列在三种新热带鱼类中标记了原始生殖细胞 (PGC). 在Astyanax altiparanae和Prochilodus lineatus中,PGC标签最有效,有助于生殖质保护工作.
科学领域:
- 发展生物学 发展生物学
- 遗传学 是一个遗传学.
- 保护生物学 保护生物学
背景情况:
- 原始生殖细胞 (PGC) 对于繁殖和生殖质保存至关重要.
- 了解PGC迁移对于移植和喜梅拉生成至关重要.
- 新热带鱼类为研究生殖细胞发育提供了独特的模型.
研究的目的:
- 开发和验证使用Pseudopimelodus mangurus的ddx4 3'UTR序列的PGC标签方法.
- 评估PGC标签在三个新热带鱼类物种:P. mangurus,Astyanax altiparanae和Prochilodus lineatus中的效率.
- 确认ddx4和dnd1的表达是可靠的PGC标记物.
主要方法:
- 从ddx4 3'UTR序列 (与GFP或DsRed合并) 合成的mRNA微注射到卵巢中.
- 光显微镜用于在胚胎发育过程中可视化标记的PGC.
- 在P. mangurus组织中对基因表达 (ddx4和dnd1) 的定量分析.
主要成果:
- 在所有三种物种中都取得了有效的假定PGC的识别.
- 在不同的发育阶段观察到标记的PGC:化 (P. mangurus),胃肠 (A. altiparanae) 和细分 (P. lineatus).
- 在A. altiparanae (29%) 和P. lineatus (16%),PGC标签效率较高.
结论:
- 在P. mangurus ddx4 3'UTR序列有效地作为PGC标记物.
- 开发的PGC标签技术在A. altiparanae和P. lineatus中更有效.
- 这项研究为为P. mangurus的保护产生生殖线嵌合体提供了一个基本步骤.
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