| molecular detection and genotyping of aphanomyces astaci directly from preserved crayfish samples uncovers the norwegian crayfish plague disease history. | aphanomyces astaci causes crayfish plague in european freshwater crayfish, but most historical epizootics lack agent isolation and identification. although declared as crayfish plague outbreaks by the norwegian competent authorities, only presumptive diagnoses without agent isolation exist from norwegian epizootics until 2005. molecular methods now allow both a. astaci detection and genotype determination from preserved samples. we therefore aimed to (1) investigate molecularly if a. astaci was ... | 2014 | 25124447 |