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Characterization of Pm59, a novel powdery mildew resistance gene in Afghanistan wheat landrace PI 181356.
Theor Appl Genet. 2018 May; 131(5):1145-1152.TA

Abstract

KEY MESSAGE

A new powdery mildew resistance gene, designated Pm59, was identified in Afghanistan wheat landrace PI 181356, and mapped in the terminal region of the long arm of chromosome 7A. Powdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), is an important foliar disease of wheat worldwide. In the Great Plains of the USA, Bgt isolates virulent to widely used powdery mildew resistance genes, such as Pm3a, were previously identified. The objectives of this study were to characterize the powdery mildew resistance gene in Afghanistan landrace PI 181356, which exhibited high resistance to Bgt isolates collected in southern Great Plains, and identify molecular markers for marker-assisted selection. An F2 population and F2:3 lines derived from a cross between PI 181356 and OK1059060-126135-3 were used in this study. Genetic analysis indicated that PI 181356 carries a single dominant gene, designated Pm59, in the terminal region of the long arm of chromosome 7A. Pm59 was mapped to an interval between sequence tag site (STS) markers Xmag1759 and Xmag1714 with genetic distances of 0.4 cM distal to Xmag1759 and 5.7 cM proximal to Xmag1714. Physical mapping suggested that Pm59 is in the distal bin 7AL 0.99-1.00. Pm59 is a novel powdery mildew resistance gene, and confers resistance to Bgt isolates collected from the Great Plains and the state of Montana. Therefore, Pm59 can be used to breed powdery mildew-resistant cultivars in these regions. Xmag1759 is ideal for marker-assisted selection of Pm59 in wheat breeding.

Authors+Show Affiliations

Wheat, Peanut, and Other Field Crops Research Unit, USDA-ARS, Stillwater, OK, 74075, USA.Wheat, Peanut, and Other Field Crops Research Unit, USDA-ARS, Stillwater, OK, 74075, USA. Plant and Soil Science Department, Oklahoma State University, Stillwater, OK, 74078, USA.Plant Science Research Unit, USDA-ARS, Raleigh, NC, 27695, USA.Plant and Soil Science Department, Oklahoma State University, Stillwater, OK, 74078, USA.Wheat, Peanut, and Other Field Crops Research Unit, USDA-ARS, Stillwater, OK, 74075, USA. xiangyang.xu@ars.usda.gov.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29453526

Citation

Tan, Chengcheng, et al. "Characterization of Pm59, a Novel Powdery Mildew Resistance Gene in Afghanistan Wheat Landrace PI 181356." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 131, no. 5, 2018, pp. 1145-1152.
Tan C, Li G, Cowger C, et al. Characterization of Pm59, a novel powdery mildew resistance gene in Afghanistan wheat landrace PI 181356. Theor Appl Genet. 2018;131(5):1145-1152.
Tan, C., Li, G., Cowger, C., Carver, B. F., & Xu, X. (2018). Characterization of Pm59, a novel powdery mildew resistance gene in Afghanistan wheat landrace PI 181356. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 131(5), 1145-1152. https://doi.org/10.1007/s00122-018-3067-9
Tan C, et al. Characterization of Pm59, a Novel Powdery Mildew Resistance Gene in Afghanistan Wheat Landrace PI 181356. Theor Appl Genet. 2018;131(5):1145-1152. PubMed PMID: 29453526.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterization of Pm59, a novel powdery mildew resistance gene in Afghanistan wheat landrace PI 181356. AU - Tan,Chengcheng, AU - Li,Genqiao, AU - Cowger,Christina, AU - Carver,Brett F, AU - Xu,Xiangyang, Y1 - 2018/02/16/ PY - 2017/08/09/received PY - 2018/02/05/accepted PY - 2018/2/18/pubmed PY - 2018/4/24/medline PY - 2018/2/18/entrez SP - 1145 EP - 1152 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 131 IS - 5 N2 - KEY MESSAGE: A new powdery mildew resistance gene, designated Pm59, was identified in Afghanistan wheat landrace PI 181356, and mapped in the terminal region of the long arm of chromosome 7A. Powdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), is an important foliar disease of wheat worldwide. In the Great Plains of the USA, Bgt isolates virulent to widely used powdery mildew resistance genes, such as Pm3a, were previously identified. The objectives of this study were to characterize the powdery mildew resistance gene in Afghanistan landrace PI 181356, which exhibited high resistance to Bgt isolates collected in southern Great Plains, and identify molecular markers for marker-assisted selection. An F2 population and F2:3 lines derived from a cross between PI 181356 and OK1059060-126135-3 were used in this study. Genetic analysis indicated that PI 181356 carries a single dominant gene, designated Pm59, in the terminal region of the long arm of chromosome 7A. Pm59 was mapped to an interval between sequence tag site (STS) markers Xmag1759 and Xmag1714 with genetic distances of 0.4 cM distal to Xmag1759 and 5.7 cM proximal to Xmag1714. Physical mapping suggested that Pm59 is in the distal bin 7AL 0.99-1.00. Pm59 is a novel powdery mildew resistance gene, and confers resistance to Bgt isolates collected from the Great Plains and the state of Montana. Therefore, Pm59 can be used to breed powdery mildew-resistant cultivars in these regions. Xmag1759 is ideal for marker-assisted selection of Pm59 in wheat breeding. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/29453526/Characterization_of_Pm59_a_novel_powdery_mildew_resistance_gene_in_Afghanistan_wheat_landrace_PI_181356_ DB - PRIME DP - Unbound Medicine ER -