arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1202.4378q-bio.PEcond-mat.stat-mech
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经验适应度景观的定量分析

Quantitative analyses of empirical fitness landscapes

Ivan G. Szendro, Martijn F. Schenk, Jasper Franke, Joachim Krug, J. Arjan G. M. de Visser

摘要:

适应度景观的概念是一个强有力的隐喻,它为进化过程的各个方面提供了洞察力,并为进化研究提供了指导。直到最近,经验证据的崎岖这些景观是缺乏的,但由于它成为可行的构建所有可能的基因型包含组合的一组有限的突变,研究的数量已经增长到一个点,其中的景观分类成为可能。本综述的目的是确定上位性的措施,允许一个有意义的比较适应度景观,然后将它们应用到经验景观,以辨别影响坚固性的因素。在文献中提出的各种上位性措施似乎是等效的。我们的比较表明,经验景观的坚固性受到所包含的突变是有益的还是有害的,以及是否涉及基因内或基因间上位性的影响。最后,将经验景观与粗糙山生成的景观进行比较。富士模型。尽管这个模型很简单,但它非常好地捕捉了实验景观的特征。

英文摘要:

The concept of a fitness landscape is a powerful metaphor that offers insight into various aspects of evolutionary processes and guidance for the study of evolution. Until recently, empirical evidence on the ruggedness of these landscapes was lacking, but since it became feasible to construct all possible genotypes containing combinations of a limited set of mutations, the number of studies has grown to a point where a classification of landscapes becomes possible. The aim of this review is to identify measures of epistasis that allow a meaningful comparison of fitness landscapes and then apply them to the empirical landscapes to discern factors that affect ruggedness. The various measures of epistasis that have been proposed in the literature appear to be equivalent. Our comparison shows that the ruggedness of the empirical landscape is affected by whether the included mutations are beneficial or deleterious and by whether intra- or intergenic epistasis is involved. Finally, the empirical landscapes are compared to landscapes generated with the Rough Mt.\ Fuji model. Despite the simplicity of this model, it captures the features of the experimental landscapes remarkably well.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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