“…In A. thaliana , population genetic studies have revealed multiple modes of selection that shape the nucleotide variations of R‐genes, such as balancing or directional selection (Bakker et al., ; Bergelson, Kreitman, Stahl, & Tian, ; Mauricio et al., ; Rose et al., ; Stahl, Dwyer, Mauricio, Kreitman, & Bergelson, ). Similar patterns have also been reported from other species, including Capsella rubella (Gos, Slotte, & Wright, ), Lactuca sativa (Kuang, Woo, Meyers, Nevo, & Michelmore, ), Lycopersicon (Rose, Michelmore, & Langley, ), and Solanum peruvianum (Horger et al., ).…”