
Mosaic structure in Pi3.4F. pi3.4FA, pi3.4T, and pi3.4A are copies present in the avirulent haplotype. pi3.4FV is derived from the virulent haplotype. The size of pi3.4A is estimated from transcript lengths. From various pi3.4A copies 720 bp were sequenced, and the number of SNPs detected in these 720 bp fragments is indicated. Sequences derived from other loci carry frame shifts and stop codons, or have deletions. For alignments see Supplemental Figures S1, S2.











