Major contribution of qPbm11 for panicle blast resistance and its location. (A) Effect of two QTLs on panicle blast resistance. M and B represent the parental cultivars of Miyazakimochi and Bikei 22, respectively. QTLs in each group are indicated under group names qPbm11/qPbm9, qPbm11/-, −/qPbm9, and −/−. Bars are mean ± standard deviation of the tested number in parentheses. Bars with the same letter do not differ significantly according to the Tukey-Kramer test with Box-Cox transformation (P < 0.01). (B) Genotypes of the BC2F7 individuals in Types 1 to 4. Black and white bars indicate homozygous regions derived from Miyazakimochi and Bikei 22, respectively. The hatched bar is the heterozygous interval. Vertical lines represent marker positions with reference to the genomic sequence of Nipponbare (build 5, http://rapdblegacy.dna.affrc.go.jp/download/index.html). A black arrow indicates the position corresponding to Pb1 isolated by Hayashi et al. ([2010b]). The number of lines showing the same genotype is given in parentheses after the group name.