Heilongjiang Provincial Key Laboratory of Crop-Pest Interaction Biology and Ecological Control, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China.
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Plant Dis. 2020 Sep;104(9):2411-2417. doi: 10.1094/PDIS-01-20-0118-RE. Epub 2020 Jul 13.
Chinese wheat landrace Youbailan has excellent resistance to powdery mildew caused by f. sp. . In the present study, genetic analysis indicated that a recessive gene, tentatively designated , was responsible for the powdery mildew resistance of Youbailan. was located in the 695-to-715-Mb genomic region of chromosome 7BL, with 19 gene-linked single-nucleotide polymorphism (SNP) markers. It was flanked by and with genetic distances of 0.6 and 1.8 centimorgans, respectively. The disease reaction patterns of Youbailan and four cultivars (lines) carrying the powdery mildew () genes located on chromosome arm 7BL indicated that may be allelic or closely linked to these genes. All of the SNP markers linked to were diagnostic, indicating that these markers will be useful for pyramiding using marker-assisted selection.
中国小麦地方品种 Youbailan 对由 f. sp..引起的白粉病具有优异的抗性。在本研究中，遗传分析表明，一个隐性基因，暂命名为 ，负责 Youbailan 的白粉病抗性。 位于染色体 7BL 的 695-715-Mb 基因组区域，有 19 个与基因连锁的单核苷酸多态性 (SNP) 标记。它由 和 侧翼，遗传距离分别为 0.6 和 1.8 厘摩。携带位于 7BL 染色体臂上的白粉病 ( )基因的 Youbailan 和四个品种（系）的发病反应模式表明， 可能与这些基因是等位的或紧密连锁的。与 连锁的所有 SNP 标记都是可诊断的，表明这些标记将有助于利用标记辅助选择对 进行基因聚合。
