COMPARISON OF UNDIRECTED PHYLOGENETIC TREES BASED ON SUBTREES OF 4 EVOLUTIONARY UNITS
COMPARISON OF UNDIRECTED PHYLOGENETIC TREES BASED ON SUBTREES OF 4 EVOLUTIONARY UNITS
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DOI：
10.2307/2413326
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发表时间：
1985-01-01
期刊：
影响因子：
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通讯作者：
MEACHAM, CA
中科院分区：
文献类型：
--
作者：
ESTABROOK, GF;MCMORRIS, FR;MEACHAM, CA
描述了一种方法来衡量如何相似的是2进化树的同一集合的进化单位（EU）。该措施不改变的变化，在进化的方向进行比较的2棵树，它只取决于凸性和接近欧盟的群体内收集的研究。它也可以用于仅部分解析的系统发育树。该措施是基于这样的想法，即一组4个欧盟是最小的组，其中有超过1个可能的不同的无向系统发育树。对于一个给定的系统发育树，由一组4个EU继承的无向子树是当所有只包含不在该组4个EU中的EU的分支被移除时得到的树。每组4个EU要么继承3种不同类型的无向系统发育树中的1种，要么是未解决的。根据4个EU的哪一组遗传相同类型的无向系统发育树，可以比较两个系统发育树。这些想法可以扩展到3个或更多个树的比较。
A method to measure how similar are 2 phologenetic trees for the same collection of evolutionary units (EU) is described. The measure does not change with changes in the direction of evolution in either of the 2 trees being compared; it depends only on the convexity and proximity of the groups of EU within the collection under study. It can also be used with only partially resolved phylogenetic trees. The measure is based on the idea that a group of 4 EU is the smallest group for which there is more than 1 possible distinct undirected phylogenetic tree. For a given phylogenetic tree, the undirected subtree inherited by a group of 4 EU is the tree that results when all the branches containing only EU not in this group of 4 are removed. Every group of 4 EU either inherits 1 of 3 distinct types of undirected phylogenetic trees or is unresolved. Two phylogenetic trees can be compared on the basis of which groups of 4 EU inherit the same type of undirected phylogenetic tree. The ideas can be extended to comparisons of 3 or more trees.