laboratoire (1) analyse (1) gène (1) ADN (1) taux (1) Twentieth century (1) Ophiostoma (1) Nature (1) Mushrooms (1) Pathogenic microorganisms (1) Growth (1) Genomes (1) Dutch elm disease (1) DNA (1) Crosses (1) Chromosomes (1) Beginning (1) Addition (1) 20th century (1) Analysis (1) Influence (1) Pathogens (1) Growth (1)