A Polynomial-Time Algorithm for Minimizing the Deep Coalescence Cost for Level-1 Species Networks
A Polynomial-Time Algorithm for Minimizing the Deep Coalescence Cost for Level-1 Species Networks
复制标题
一种最小化 1 级物种网络深度合并成本的多项式时间算法
DOI:
10.1109/tcbb.2021.3105922
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Wu, Yi-Chieh
中科院分区:
文献类型:
--
作者:
LeMay, Matthew;Libeskind-Hadas, Ran;Wu, Yi-Chieh
Phylogenetic analyses commonly assume that the species history can be represented as a tree. However, in the presence of hybridization, the species history is more accurately captured as a network. Despite several advances in modeling phylogenetic networks, there is no known polynomial-time algorithm for parsimoniously reconciling gene trees with species networks while accounting for incomplete lineage sorting. To address this issue, we present a polynomial-time algorithm for the case of level-1 networks, in which no hybrid species is the direct ancestor of another hybrid species. This work enables more efficient reconciliation of gene trees with species networks, which in turn, enables more efficient reconstruction of species networks.
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