TY - JOUR
AU - Xu, Xiangyang
AB - Key message A new recessive powdery mildew resistance gene, Pm223899, was identified in Afghanistan wheat lan - drace PI 223899 and mapped to an interval of about 831 Kb in the terminal region of the short arm of chromosome 1A. Abstract Wheat powdery mildew, a globally important disease caused by the biotrophic fungus Blumeria graminis f.sp. tritici (Bgt), has occurred with increased frequency and severity in recent years, and some widely deployed resistance genes have lost effectiveness. PI 223899 is an Afghanistan landrace exhibiting high resistance to Bgt isolates collected from the Great Plains. An F population and F lines derived from a cross between PI 223899 and OK1059060-126135-3 were evaluated 2 2:3 for response to Bgt isolate OKS(14)-B-3-1, and the bulked segregant analysis (BSA) approach was used to map the powdery mildew resistance gene. Genetic analysis indicated that a recessive gene, designated Pm223899, conferred powdery mildew resistance in PI 223899. Linkage analysis placed Pm223899 to an interval of about 831 Kb in the terminal region of chro- mosome 1AS, spanning 4,504,697–5,336,062 bp of the Chinese Spring reference sequence. Eight genes were predicted in this genomic region, including TraesCS1AG008300 encoding a putative disease resistance protein RGA4. Pm223899 was flanked proximally by a 
TI - Pm223899, a new recessive powdery mildew resistance gene identified in Afghanistan landrace PI 223899
JF - TAG Theoretical and Applied Genetics
DO - 10.1007/s00122-018-3199-y
DA - 2018-10-16
UR - https://www.deepdyve.com/lp/springer-journals/pm223899-a-new-recessive-powdery-mildew-resistance-gene-identified-in-py0uacXu5u
SP - 2775
EP - 2783
VL - 131
IS - 12
DP - DeepDyve
ER -