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Tierra's missing neutrality: case solved

机译：Tierra缺少中立性：案例已解决

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摘要

The concept of neutral evolutionary networks being a significant factor in evolutionary dynamics was first proposed by Huynen et al. about 7 years ago. In one sense, the principle is easy to state — because most mutations to an organism are deleterious, one would expect that neutral mutations that don't affect the phenotype will have disproportionately greater representation amongst successor organisms than one would expect if each mutation was equally likely.rnSo it was with great surprise that I noted neutral mutations being very rare in a visualisation of phylogenetic trees generated in Tierra, since I already knew that there was a significant amount of neutrality in the Tierra genotype-phenotype map.rnIt turns out that competition for resources between host and parasite inhibits neutral evolution.
机译：Huynen等人首先提出了中性进化网络的概念，它是进化动力学的重要因素。大约7年前从某种意义上说，该原理很容易阐明-因为大多数生物突变都是有害的，因此人们希望，不影响表型的中性突变在后继生物中的代表比例将大大超过每个突变均等的代表。令我惊讶的是，我注意到在Tierra生成的系统发生树的可视化中很少出现中性突变，因为我已经知道Tierra基因型-表型图谱中存在大量中性。宿主和寄生虫之间的资源竞争抑制了中性进化。

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