Transgenerational effects benefit offspring across diverse environments: a meta-analysis in plants and animals
Transgenerational effects benefit offspring across diverse environments: a meta-analysis in plants and animals
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跨代效应有益于不同环境中的后代：植物和动物的荟萃分析
DOI：
10.1111/ele.13373
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发表时间：
2019
期刊：
影响因子：
8.8
通讯作者：
Zhang Yuan Ye
中科院分区：
文献类型：
--
作者：
Yin Junjie;Zhou Ming;Lin Zeru;Li Qingshun Q;Zhang Yuan Ye
近年来，环境变化中的代际效应（祖先环境对后代的影响）的适应价值受到了广泛关注，但相关的经验证据仍不明确。在这里，我们进行了一项Meta分析，总结了植物和动物中的139项实验研究，具有1170个效应量，以研究跨类群，性状和环境背景的跨代效应的一般性。结果发现，跨代效应一般提高后代的表现，在应对压力和良性的条件。一年生植物和无脊椎动物受到的影响最大，而脊椎动物似乎主要在良性条件下受益，多年生植物几乎没有任何跨代反应。分类学/生活史组之间的这些差异可能反映了脊椎动物可以通过它们的移动性来避免压力条件，而寿命更长的植物有替代策略。除了环境背景和分类学/生活史组之外，代际效应也因祖先和后代的特征和发育阶段而异，但这种效应在三代后代中同样强烈。通过更全面的数据集和不同的效应量，我们的结果与最近的Meta分析结果不同，这表明跨代效应是广泛的，强大的和持久的，可以大大影响植物和动物对环境变化的反应。
The adaptive value of transgenerational effects (the ancestor environmental effects on offspring) in changing environments has received much attention in recent years, but the related empirical evidence remains equivocal. Here, we conducted a meta‐analysis summarising 139 experimental studies in plants and animals with 1170 effect sizes to investigate the generality of transgenerational effects across taxa, traits, and environmental contexts. It was found that transgenerational effects generally enhanced offspring performance in response to both stressful and benign conditions. The strongest effects are in annual plants and invertebrates, whereas vertebrates appear to benefit mostly under benign conditions, and perennial plants show hardly any transgenerational responses at all. These differences among taxonomic/life‐history groups possibly reflect that vertebrates can avoid stressful conditions through their mobility, and longer‐lived plants have alternative strategies. In addition to environmental contexts and taxonomic/life‐history groups, transgenerational effects also varied among traits and developmental stages of ancestors and offspring, but the effects were similarly strong across three generations of offspring. By way of a more comprehensive data set and a different effect size, our results differ from those of a recent meta‐analysis, suggesting that transgenerational effects are widespread, strong and persistent and can substantially impact the responses of plants and animals to changing environments.