Estimates of genetic polymorphism revealed by seven minisatellites and mating type ratios in AvrLm7 or avrLm7 populations of Leptosphaeria maculans collected from the Grignon field experiment between autumn 2006 and 2008.

aN, number of isolates; Na and Na Freq. ≥5%, mean number of different alleles and mean number of different alleles with frequency >0.05, respectively (± standard error); H, unbiased gene diversity averaged across loci (± standard error); MLG, number of multilocus genotypes; NMLG, mean number of isolates per genotype (± standard error); rd, standardized version of the index of association as calculated in Multilocus v3.1; Mat1-1/Mat1-2 is the ratio of the number of isolates carrying mating type 1 (Mat1-1) to isolates carrying mating type 2 (Mat1-2). (*) Significant deviation from a 1∶1 ratio was tested using a χ2 with 1 degree of freedom; ns, P>0.05;*, P