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Inferring Indel Parameters using a Simulation-based Approach

delete2015-11-03
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OA
AI
E
Eli Levy Karin
A
Avigayel Rabin
H
Haim Ashkenazy
D
Dafna Shkedy
O
Oren Avram
R
Reed A. Cartwright
T
Tal Pupko *
DOI:10.1093/gbe/evv212delete
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Abstract

Abstract

En 中文
In this study, we present a novel methodology to infer indel parameters from multiple sequence alignments (MSAs) based on simulations. Our algorithm searches for the set of evolutionary parameters describing indel dynamics which best fits a given input MSA. In each step of the search, we use parametric bootstraps and the Mahalanobis distance to estimate how well a proposed set of parameters fits input data. Using simulations, we demonstrate that our methodology can accurately infer the indel parameters for a large variety of plausible settings. Moreover, using our methodology, we show that indel parameters substantially vary between three genomic data sets: Mammals, bacteria, and retroviruses. Finally, we demonstrate how our methodology can be used to simulate MSAs based on indel parameters inferred from real data sets.
Keywords:
simulations
phylogeny
indels
alignments
Mahalanobis distance
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Journal

Genome Biology and Evolution cover
Genome Biology and Evolution
IF:
2.8
Papers:
4.0K
Citations:
9.3K

Organization

A
Arizona State University
Scholars:
2.7W
Papers: 2.5W
Citations: 4.2W
T
Tel Aviv University
Scholars:
3.7W
Papers: 3.0W
Citations: 3.6W