Schurch, StephanieLinde, CelesteKnogge, Wolfgang HJackson, Lee F.McDonald, Bruce A2015-12-080894-0282http://hdl.handle.net/1885/31759Deletion or alteration of an avirulence gene are two mechanisms that allow pathogens to escape recognition mediated by the corresponding resistance gene in the host. We studied these two mechanisms for the NIP1 avirulence gene in field populations of theKeywords: fungal DNA; fungal protein; amino acid sequence; article; Ascomycetes; barley; codon; fungal gene; genetic selection; genetic variability; genetics; isolation and purification; molecular genetics; nucleotide sequence; pathogenicity; sequence homology; vir Leaf scald of barley; Neutral theory; Non-synonymous mutations; Synonymous mutations20042015-12-08