Title
The imperfect ancestral recombination graph reconstruction problem: upper bounds for recombination and homoplasy.
Abstract
One of the central problems in computational biology is the reconstruction of evolutionary histories. While models incorporating recombination and homoplasy have been studied separately, a missing component in the theory is a robust and flexible unifying model which incorporates both of these major biological events shaping genetic diversity. In this article, we introduce the first such unifying model and develop algorithms to find the optimal ancestral recombination graph incorporating recombinations and homoplasy events. The power of our framework is the connection between our formulation and the Directed Steiner Arborescence Problem in combinatorial optimization. We implement linear programming techniques as well as heuristics for the Directed Steiner Arborescence Problem, and use our methods to construct evolutionary histories for both simulated and real data sets.
Year
DOI
Venue
2010
10.1089/cmb.2009.0249
JOURNAL OF COMPUTATIONAL BIOLOGY
Keywords
Field
DocType
recombination,phylogeny,homoplasy,genetic variation,haplotypes,sequence analysis
Graph,Data set,Recombination,Imperfect,Arborescence,Combinatorial optimization,Heuristics,Linear programming,Bioinformatics,Mathematics
Journal
Volume
Issue
ISSN
17.0
6
1066-5277
Citations 
PageRank 
References 
0
0.34
22
Authors
3
Name
Order
Citations
PageRank
Fumei Lam11007.98
Ryan Tarpine2142.78
Sorin Istrail31415170.40