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在C. elegans中需要由质细胞衍生的神经元进行性别特异性学习

Michele Sammut¹, Steven J Cook², Ken C Q Nguyen²

¹Department of Cell and Developmental Biology, University College London, London, WC1E 6BT.

|October 16, 2015

概括

研究人员在C. elegans中发现了男性特有的内神经元,这些内神经元来自质细胞,通过将化学传感与生殖需求联系起来,使得性别特异性学习成为可能.

科学领域:

神经科学
发育生物学
行为遗传学

背景情况:

在学习和认知过程中观察到行为上的性别差异.
这些性二态行为的神经基础,特别是在电路开发中,尚不清楚.

研究的目的:

为了阐明单细胞层面的神经机制的性别特异性学习行为在*Caenorhabditis elegans*.
确定促进性别特异性学习的神经元的发育起源和整合电路.

主要方法:

神经发育和电路连接的单细胞分析.
用于关联式学习的行为测试 (性调节).
追踪神经元系从原始细胞.

主要成果:

一对男性特异性的内神经元对于性调节至关重要.
这些内部神经元来源于分化的质原生细胞.
它们是在性成熟过程中产生的,并融入到现有的电路中.
这些神经元将化疗与生殖优先级联系起来.

结论:

质细胞是元动物中神经元的保存来源.
在性成熟过程中增加性特异性神经元是产生性二态可塑性的关键机制.

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