Comparative mapping of powdery mildew resistance gene Pm21 and functional characterization of resistance-related genes in wheat

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Huagang HeTongde Bie

Abstract

The powdery mildew resistance gene Pm21 was physically and comparatively mapped by newly developed markers. Seven candidate genes were verified to be required for Pm21 -mediated resistance to wheat powdery mildew. Pm21, a gene derived from wheat wild relative Dasypyrum villosum, has been transferred into common wheat and widely utilized in wheat resistance breeding for powdery mildew. Previously, Pm21 has been located to the bin FL0.45-0.58 of 6VS by using deletion stocks. However, its fine mapping is still a hard work. In the present study, 30 gene-derived 6VS-specific markers were obtained based on the collinearity among genomes of Brachypodium distachyon, Oryza and Triticeae, and then physically and comparatively mapped in the bin FL0.45-0.58 and its nearby chromosome region. According to the maps, the bin FL0.45-0.58 carrying Pm21 was closely flanked by the markers 6VS-03 and 6VS-23, which further narrowed the orthologous regions to 1.06 Mb in Brachypodium and 1.38 Mb in rice, respectively. Among the conserved genes shared by Brachypodium and rice, four serine/threonine protein kinase genes (DvMPK1, DvMLPK, DvUPK and DvPSYR1), one protein phosphatase gene (DvPP2C) and two transcription factor genes (DvGATA and DvWHY) were c...Continue Reading

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Citations

Oct 21, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jindong LiuXianchun Xia
Aug 6, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Kaijing ZhangJinfeng Chen
Mar 3, 2018·International Journal of Molecular Sciences·Shanying ZhuHuagang He
Feb 8, 2019·Genetics and Molecular Biology·Keming ZhuYanhua Yang
Sep 12, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huagang HeShanying Zhu
Nov 19, 2020·Genes·Marek MarzecAgnieszka Brąszewska

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