GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Department of Marine Sciences, University of Gothenburg, Göteborg, Sweden.
Nat Ecol Evol. 2018 Apr;2(4):611-613. doi: 10.1038/s41559-018-0474-x. Epub 2018 Feb 12.
Climate change challenges plankton communities, but evolutionary adaptation could mitigate the potential impacts. Here, we tested with the phytoplankton species Emiliania huxleyi whether adaptation to a stressor under laboratory conditions leads to equivalent fitness gains in a more natural environment. We found that fitness advantages that had evolved under laboratory conditions were masked by pleiotropic effects in natural plankton communities. Moreover, new genotypes with highly variable competitive abilities evolved on timescales significantly shorter than climate change.
气候变化挑战浮游生物群落，但进化适应可能减轻潜在影响。在这里，我们用浮游植物物种赫氏海链藻进行了测试，以确定在实验室条件下对胁迫的适应是否会导致在更自然的环境中获得等效的适应性增益。我们发现，在自然浮游生物群落中，由多效性效应掩盖了在实验室条件下进化而来的适应性优势。此外，在比气候变化更短的时间尺度上，新的具有高度可变竞争力的基因型进化了。
