阶段依赖的可塑性和青的非强制性洞穴居住生命周期的演变
Wei Zhu1, Liming Chang1, Ningning Lu1
1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610213, Sichuan, China.
BMC biology
|February 3, 2026
概括
龙的阶段性可塑性有助于它们适应洞穴环境. 变形后,环境的响应能力下降,影响生命周期的演变.
科学领域:
- 进化生物学是进化的生物学.
- 发育生物学是发展生物学.
- 生态生态学 生态生态学
背景情况:
- 塑性是动物适应的关键,但其在生命周期进化中的作用尚不清楚.
- 阿努拉人具有两相生命周期 (和青),具有不同的进化路径.
- 青Oreolalax rhodostigmatus显示适应洞穴和成年人依赖外部资源,表明阶段依赖的可塑性.
研究的目的:
- 在Oreolalax rhodostigmatus中研究依赖阶段的转录可塑性.
- 确定环境响应能力在不同发育阶段和器官之间如何变化.
- 了解塑性在洞穴居住的类动物进化中的作用.
主要方法:
- 在10个发育阶段和4个器官 (肝脏,尾巴,皮肤,后肢) 中比较洞穴和外界的转录组.
- 分析了对环境条件的特定器官的转录反应.
- 检查了与细胞过程,免疫,新陈代谢和饥饿耐受性相关的基因表达模式.
主要成果:
- 转录对环境的反应在转变性高潮后,肝脏,皮肤和尾巴显著下降.
- 后肢是青特有的器官,表现出最低的环境反应能力.
- 在高潮前,洞穴头上调合成过程和下调免疫力,表明资源分配.
- 胆汁生物合成,异生菌代谢和胰岛素/葡萄糖耐药基因的升级表明营养利用和饥饿耐受性有所提高.
结论:
- 这些发现支持依赖阶段的可塑性,作为解释Anuran人非强制性洞穴居住的解释.
- 塑性在塑造动物的生活方式和进化轨迹方面发挥着重要作用.
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