DnaSAM: Software to perform neutrality testing for large datasets with complex null models

AJ Eckert, JD Liechty, BR Tearse… - Molecular ecology …, 2010 - Wiley Online Library
Molecular ecology resources, 2010Wiley Online Library
Patterns of DNA sequence polymorphisms can be used to understand the processes of
demography and adaptation within natural populations. High‐throughput generation of DNA
sequence data has historically been the bottleneck with respect to data processing and
experimental inference. Advances in marker technologies have largely solved this problem.
Currently, the limiting step is computational, with most molecular population genetic software
allowing a gene‐by‐gene analysis through a graphical user interface. An easy‐to‐use …
Abstract
Patterns of DNA sequence polymorphisms can be used to understand the processes of demography and adaptation within natural populations. High‐throughput generation of DNA sequence data has historically been the bottleneck with respect to data processing and experimental inference. Advances in marker technologies have largely solved this problem. Currently, the limiting step is computational, with most molecular population genetic software allowing a gene‐by‐gene analysis through a graphical user interface. An easy‐to‐use analysis program that allows both high‐throughput processing of multiple sequence alignments along with the flexibility to simulate data under complex demographic scenarios is currently lacking. We introduce a new program, named DnaSAM, which allows high‐throughput estimation of DNA sequence diversity and neutrality statistics from experimental data along with the ability to test those statistics via Monte Carlo coalescent simulations. These simulations are conducted using the ms program, which is able to incorporate several genetic parameters (e.g. recombination) and demographic scenarios (e.g. population bottlenecks). The output is a set of diversity and neutrality statistics with associated probability values under a user‐specified null model that are stored in easy to manipulate text file.
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