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Bioinformatics Vol. 19 no. 7 2003
Pages 889-890
© 2003 Oxford University Press


Applications Note

R/qtl: QTL mapping in experimental crosses

Karl W. Broman 1,*, Hao Wu 2, Saunak Sen 2,{dagger} and Gary A. Churchill 2

1 Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe St, Baltimore, MD 21205, USA
2 The Jackson Laboratory, 600 Main St, Bar Harbor, ME 04609, USA

Received on October 11, 2002 ; revised on December 13, 2002 ; accepted on December 20, 2002

Summary: R/qtl is an extensible, interactive environment for mapping quantitative trait loci (QTLs) in experimental populations derived from inbred lines. It is implemented as an add-on package for the freely-available statistical software, R, and includes functions for estimating genetic maps, identifying genotyping errors, and performing single-QTL and two-dimensional, two-QTL genome scans by multiple methods, with the possible inclusion of covariates.

Availability: The package is freely available at http://www.biostat.jhsph.edu/~kbroman/qtl.

Contact: kbroman{at}jhsph.edu

* To whom correspondence should be addressed.

{dagger} Present address: Department of Epidemiology and Biostatistics, University of California, San Francisco, CA 94143, USA.


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