Can environmental conditions experienced in early life influence future generations?
Can environmental conditions experienced in early life influence future generations?
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DOI：
10.1098/rspb.2014.0311
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发表时间：
2014-06-22
期刊：
影响因子：
--
通讯作者：
Metcalfe NB
中科院分区：
文献类型：
--
作者：
Burton T;Metcalfe NB
早期发育条件对以后生活表现的影响现在受到许多不同生物学分支学科的共同关注。然而，主要来自生物医学文献的惊人数据表明，甚至在怀孕之前经历的环境影响可以传递给后代。在这里，我们回顾了来自自然系统的越来越多的证据，表明这些早期生活条件的跨代影响，表明它们可以由不同的环境压力源产生，以多种方式影响后代，并可以直接或间接地由双亲传递几代。在这样做的时候，我们强调为什么早期生活可能是如此敏感的环境引起的影响跨代传输。我们还总结了最近的理论进展领域内的发展可塑性，并讨论了父母如何可能组装不同的“内部”和“外部”的线索，甚至从生命的最早阶段，以指导他们的投资决策的后代。在这样做的过程中，我们提供了一个初步的框架内的适应性可塑性的背景下，了解代际现象，从早期的生活条件。
The consequences of early developmental conditions for performance in later life are now subjected to convergent interest from many different biological sub-disciplines. However, striking data, largely from the biomedical literature, show that environmental effects experienced even before conception can be transmissible to subsequent generations. Here, we review the growing evidence from natural systems for these cross-generational effects of early life conditions, showing that they can be generated by diverse environmental stressors, affect offspring in many ways and can be transmitted directly or indirectly by both parental lines for several generations. In doing so, we emphasize why early life might be so sensitive to the transmission of environmentally induced effects across generations. We also summarize recent theoretical advancements within the field of developmental plasticity, and discuss how parents might assemble different ‘internal’ and ‘external’ cues, even from the earliest stages of life, to instruct their investment decisions in offspring. In doing so, we provide a preliminary framework within the context of adaptive plasticity for understanding inter-generational phenomena that arise from early life conditions.
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