Department of Biology, Centre for Ecological and Evolutionary Synthesis, University of Oslo, Oslo, Norway.
Evolution. 2011 Jun;65(6):1821-2. doi: 10.1111/j.1558-5646.2011.01281.x. Epub 2011 Mar 25.
Berner et al. (2010) found that freshwater adaptation of three-spined sticklebacks had not followed the direction of maximal evolvability. Based on this, they suggested that ancestral variance structure has not appreciably biased adaptive diversification. We reanalyze their data to show that evolution has happened in directions of much larger than average evolvability, and we conclude that their data are consistent with an influence of ancestral variational constraints.
伯纳等人（2010 年）发现，三刺鱼的淡水适应性并没有遵循最大可进化性的方向。基于这一点，他们认为祖先的方差结构并没有明显偏向适应性多样化。我们重新分析了他们的数据，结果表明进化发生在比平均可进化性大得多的方向上，因此我们得出结论，他们的数据与祖先变异约束的影响是一致的。
