期刊
THEORETICAL POPULATION BIOLOGY
卷 105, 期 -, 页码 17-23出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.tpb.2015.08.007
关键词
Gene tree; Species tree; Multispecies coalescent; Anomalous gene tree; Coalescent history; Phylogeny
资金
- Erskine Fellowship at the University of Canterbury
Species trees represent the historical divergences of populations or species, while gene trees trace the ancestry of individual gene copies sampled within those populations. In cases involving rapid speciation, gene trees with topologies that differ from that of the species tree can be most probable under the standard multispecies coalescent model, making species tree inference more difficult. Such anomalous gene trees are not well understood except for some small cases. In this work, we establish one constraint that applies to trees of any size: gene trees with caterpillar topologies cannot be anomalous. The proof of this involves. a new combinatorial object, called a population history, which keeps track of the number of coalescent events in each ancestral population. (C) 2015 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据