title: Polygenic inheritance of aggressiveness in Ustilago hordei.
mesh_terms: D000483:Alleles; D000704:Analysis of Variance; D001487:Basidiomycota / Q000472:pathogenicity*; D004777:Environment; D005796:Genes; D006720:Homozygote; D010641:Phenotype; D014774:Virulence