Races of <i>Puccinia striiformis</i> f. sp. <i>tritici</i> identified from the coastal areas of Turkey

Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a devastating disease of wheat in Turkey and worldwide. This pathogen can overcome known resistance genes negatively affect the production. The objectives this study were to determine virulence patterns stripe rust isolates collected from coastal areas (Aegean Mediterranean regions) Turkey, examine genetic diversity populations simple sequence repeat (SSR) marker analysis. majority virulent at various frequencies on Yr1 (50%), Yr6 (100%), Yr7 (78%), Yr8 Yr9 (84%), Yr10 (25%), Yr17 (38%), Yr24 (22%), Yr27 (31%), Yr32 Yr43 (47%), Yr44 (6%), YrSp (41%), YrTr1 avirulent Yr5 Yr15. Based analysis virulence, all determined as 25 races clustered into six groups (VGs). In contrast, four molecular (MGs) based genotypic data. All MGs found Aegean region while only three (MG1, MG2 MG3) country. Additionally, variance indicated that 80.9% variation was within regions 19.1% between regions. results suggest interregional migration high. data be helpful for management understanding population structure Pst Turkey.