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A Simple and Robust Statistical Test for Detecting the Presence of Recombination

Bruen, Trevor C, Philippe, Hervé, Bryant, David·2006·Genetics

Abstract

Recombination is a powerful evolutionary force that merges historically distinct genotypes. But the extent of recombination within many organisms is unknown, and even determining its presence within a set of homologous sequences is a difficult question. Here we develop a new statistic, Φw, that can be used to test for recombination. We show through simulation that our test can discriminate effectively between the presence and absence of recombination, even in diverse situations such as exponential growth (star-like topologies) and patterns of substitution rate correlation. A number of other tests, Max χ2, NSS, a coalescent-based likelihood permutation test (from LDHat), and correlation of linkage disequilibrium (both r2 and |D′|) with distance, all tend to underestimate the presence of recombination under strong population growth. Moreover, both Max χ2 and NSS falsely infer the presence of recombination under a simple model of mutation rate correlation. Results on empirical data show that our test can be used to detect recombination between closely as well as distantly related samples, regardless of the suspected rate of recombination. The results suggest that Φw is one of the best approaches to distinguish recurrent mutation from recombination in a wide variety of circumstances.

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Metadata

Authors
Bruen, T. C., Philippe, H., & Bryant, D.
Venue
Genetics
Published
2006-04-01
Volume
172
Issue
4
Pages
2665-2681
ISSN
  • 0016-6731 (ISSN-L)
  • 1943-2631
OpenAlex
W2155645165
Cited by
1,382
References
74
FWCI
20.68
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A Simple and Robust Statistical Test for Detecting the Presence of Recombination. https://app.cochat.ai/papers/10.1534/genetics.105.048975
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Bruen, T. C., Philippe, H., & Bryant, D. (2006). A Simple and Robust Statistical Test for Detecting the Presence of Recombination. Genetics. https://doi.org/10.1534/genetics.105.048975

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