在珊瑚礁中,海洋变暖的特定时间的亲子影响在珊瑚礁中产生鱼类影响
L C Bonzi1, R K Spinks2,3, J M Donelson2,4
1The Swire Institute of Marine Science, School of Biological Sciences, The University of Hong Kong , Hong Kong.
Proceedings. Biological sciences
|May 21, 2024
概括
父母发育温度显著提高后代的热适应潜力. 然而,在繁殖期间的变暖或长期的热应激会对物种在气候变化中的持久性产生负面影响.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学环境科学
- 基因组学就是基因组学.
背景情况:
- 生物在变暖的海洋中的持久性取决于跨代适应.
- 在父母对后代适应的影响中,本体遗传定时的作用尚不清楚.
研究的目的:
- 研究父母幼儿在变暖下的发育和繁殖如何影响后代的热适应.
- 为了解开父母的本体遗传阶段对后代适应潜力的影响,在刺色女鱼 (Acanthochromis polyacanthus) 中.
主要方法:
- 两代Acanthochromis polyacanthus的暴露于模拟的海洋变暖.
- 肝转录组学分析基因表达和调节性RNA产生.
- 在2.5个月时评估后代的适应潜力.
主要成果:
- 父母发育温度增强了后代的RNA生产和蛋白质合成,改善了变暖反应.
- 父母生殖和后代胚胎发生期间的变暖诱导了压力反应,抑制了翻译和线粒体呼吸.
- 父母本体发生的温度不匹配会对后代的基因表达和适应产生负面影响.
结论:
- 父母发育温度对于后代早期的热适应至关重要.
- 繁殖期间的变暖和长期的热应激可能会对物种的持续性有害.
- 了解父母影响的本体遗传时间对于预测物种对气候变化的反应至关重要.
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