Title
Assessing The Fit Of The Multi-Species Network Coalescent To Multi-Locus Data
Abstract
Motivation: With growing genome-wide molecular datasets from next-generation sequencing, phylogenetic networks can be estimated using a variety of approaches. These phylogenetic networks include events like hybridization, gene flow or horizontal gene transfer explicitly. However, the most accurate network inference methods are computationally heavy. Methods that scale to larger datasets do not calculate a full likelihood, such that traditional likelihood-based tools for model selection are not applicable to decide how many past hybridization events best fit the data. We propose here a goodness-of-fit test to quantify the fit between data observed from genome-wide multilocus data, and patterns expected under the multi-species coalescent model on a candidate phylogenetic network.Results: We identified weaknesses in the previously proposed TICR test, and proposed corrections. The performance of our new test was validated by simulations on real-world phylogenetic networks. Our test provides one of the first rigorous tools for model selection, to select the adequate network complexity for the data at hand. The test can also work for identifying poorly inferred areas on a network.
Year
DOI
Venue
2021
10.1093/bioinformatics/btaa863
BIOINFORMATICS
DocType
Volume
Issue
Journal
37
5
ISSN
Citations 
PageRank 
1367-4803
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Ruoyi Cai100.34
Cécile Ané2212.09