Article
Darwinian selection on a selfing locus.
Science (New York, N.Y.) - 17 Dec 2004
Shimizu Kentaro K, Cork Jennifer M, Caicedo Ana L, Mays Charlotte A, Moore Richard C, Olsen Kenneth M, Ruzsa Stephanie, Coop Graham, Bustamante Carlos D, Awadalla Philip, Purugganan Michael D
Abstract excerpt
The shift to self-pollination is one of the most prevalent evolutionary transitions in flowering plants. In the selfing plant Arabidopsis thaliana, pseudogenes at the SCR and SRK self-incompatibility loci are believed to underlie the evolution of self-fertilization. Positive directional selection has driven the evolutionary fixation of pseudogene alleles of SCR, leading to substantially reduced nucleotide...
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