Bruen Trevor C, Bryant David
Department of Mathematics, University of California, Berkeley, USA.
Syst Biol. 2008 Apr;57(2):251-6. doi: 10.1080/10635150802040597.
The parsimony score of a character on a tree equals the number of state changes required to fit that character onto the tree. We show that for unordered, reversible characters this score equals the number of tree rearrangements required to fit the tree onto the character. We discuss implications of this connection for the debate over the use of consensus trees or total evidence and show how it provides a link between incongruence of characters and recombination.
树上某一性状的简约得分等于将该性状拟合到树上所需的状态变化数量。我们表明,对于无序、可逆性状,该得分等于将树拟合到性状上所需的树重排数量。我们讨论了这种联系对于关于使用合意树或总证据的争论的影响,并展示了它如何在性状不一致与重组之间建立联系。