Originally published as Genetics Published Articles Ahead of Print on February 19, 2006.

Genetics, Vol. 172, 2699-2704, April 2006, Copyright © 2006
doi:10.1534/genetics.105.051938

Trans-specificity at Loci Near the Self-Incompatibility Loci in Arabidopsis

Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JT, United Kingdom

1 Corresponding author: Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Ashworth Lab, King's Bldgs., W. Mains Rd., Edinburgh EH9 3JT, United Kingdom.
E-mail: deborah.charlesworth{at}ed.ac.uk

We compared allele sequences of two loci near the Arabidopsis lyrata self-incompatibility (S) loci with sequences of A. thaliana orthologs and found high numbers of shared polymorphisms, even excluding singletons and sites likely to be highly mutable. This suggests maintenance of entire S-haplotypes for long evolutionary times and extreme recombination suppression in the region.




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