从山顶看脊椎动物的演变
Stephen A Green1, Marcos Simoes-Costa1, Marianne E Bronner1
1Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125.
Nature
|April 24, 2015
概括
脊椎动物的进化引入了神经,一种独特的细胞类型. 了解其基因调节网络,可以了解脊椎动物的起源和神经衍生物的发展.
科学领域:
- 进化发育生物学 进化发育生物学
- 进行比较的基因组学.
- 细胞和分子生物学是细胞和分子生物学.
背景情况:
- 脊椎动物的起源恰逢神经细胞的出现.
- 神经细胞起源于中枢神经系统,并迁移到各种位置.
- 这些细胞分化成各种衍生物,对脊椎动物发育至关重要.
研究的目的:
- 为了阐明神经细胞规范程序的进化起源.
- 了解神经细胞是如何获得多能性和迁移能力的.
- 分析神经细胞的基因调节网络,作为脊椎动物进化的模型.
主要方法:
- 合脊椎动物和其他带状动物的形态数据.
- 整合跨物种的基因调节信息.
- 分析神经基因调节网络的拓.
主要成果:
- 神经的规范程序很可能使神经板边界细胞获得多能性和迁移性特征.
- 基因调节网络为理解神经顶进化提供了一个框架.
- 获得了关于神经衍生物的阐述的见解.
结论:
- 增加神经的规范程序是脊椎动物进化中的一个关键事件.
- 神经基因调节网络作为一个有价值的模型来研究进化过程.
- 对该网络的进一步分析可以阐明神经衍生物的多样化.
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