Key Laboratory of the Pest Monitoring and Safety Control of Crops and Forests of the Xinjiang Uygur Autonomous Region, College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China.
Key Laboratory of Prevention and Control of Invasive Alien Species in Agriculture & Forestry of the North-Western Desert Oasis, Ministry of Agriculture and Rural Affairs, Urumqi 830052, China.
Int J Mol Sci. 2023 Aug 29;24(17):13372. doi: 10.3390/ijms241713372.
Wheat stripe rust is a fungal disease caused by f. sp. (). It significantly impacts wheat yields in Xinjiang, China. Breeding and promoting disease-resistant cultivars carrying disease-resistance genes remains the most cost-effective strategy with which to control the disease. In this study, 17 molecular markers were used to identify , , , , , , , , , and in 82 wheat cultivars from Xinjiang. According to the differences in SNP loci, the KASP markers for , , , , and were designed and detected in the same set of 82 wheat cultivars. The results showed that there was a diverse distribution of genes across all wheat cultivars in Xinjiang, and the detection rates of , , , , , and were the highest, ranging from 74.39% to 98.78%. In addition, and were prevalent in spring wheat cultivars, with detection rates of 100% and 97.56%, respectively. A substantial 85.37% of wheat cultivars carried at least six or more different combinations of genes. The cultivar Xindong No.15 exhibited the remarkable presence of 11 targeted genes. The pedigree analysis results showed that 33.33% of Xinjiang wheat cultivars shared similar parentage, potentially leading to a loss of resistance against . The results clarified the gene distribution of the Xinjiang wheat cultivars and screened out varieties with a high resistance against .
小麦条锈病是由 f. sp. ()引起的真菌病害。它在中国新疆显著影响小麦产量。培育和推广携带抗病基因的抗病品种仍然是控制该病最具成本效益的策略。本研究利用 17 个分子标记，对新疆 82 个小麦品种进行了 、 、 、 、 、 、 和 的鉴定。根据 SNP 位点的差异，设计并检测了用于 、 、 、 和 的 KASP 标记在同一组 82 个小麦品种中。结果表明，新疆所有小麦品种中 基因分布多样， 、 、 、 、 和 的检测率最高，范围为 74.39%至 98.78%。此外， 和 在春小麦品种中较为普遍，检测率分别为 100%和 97.56%。有 85.37%的小麦品种至少携带六种或更多不同组合的 基因。品种新冬 15 号表现出 11 个目标 基因的显著存在。系谱分析结果表明，新疆小麦品种中有 33.33%具有相似的亲缘关系，可能导致对 失去抗性。研究结果阐明了新疆小麦品种的 基因分布，并筛选出对 具有高抗性的品种。
