Identification of QTLs for adult-plant stripe rust resistance in Chinese wheat landrace Yizhanghongkemai and assessment of their utility for decreasing yield loss

文献类型： 外文期刊

第一作者： Li, Yumei

作者： Li, Yumei;Yang, Jiaru;Liu, Zehou;Tang, Hao;Liu, Peixun;Wang, Qin;Yang, Wuyun;Li, Jun;Wan, Hongshen;Li, Yumei;Yang, Jiaru;Zhang, Haiqin;Zhang, Jing;Du, Shuanglin;Ji, Hongli;Li, Yumei;Liu, Zehou;Tang, Hao;Liu, Peixun;Wang, Qin;Yang, Wuyun;Li, Jun;Wan, Hongshen;Yang, Jiaru;Liu, Zehou;Tang, Hao;Liu, Peixun;Yang, Wuyun;Li, Jun;Wan, Hongshen;Zhang, Jing

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关键词： Wheat; Landrace; Stripe rust resistance; QTL mapping; Yield effects

期刊名称：MOLECULAR BREEDING （ 影响因子：3.0； 五年影响因子：3.0 ）

ISSN： 1380-3743

年卷期： 2025 年 45 卷 7 期

页码：

收录情况： SCI

摘要： Stripe rust is prevalent in the wheat-growing region of southwestern China. Frequent changes in stripe rust pathogen virulence in this region lead to a rapid loss of disease resistance among wheat varieties. However, Chinese wheat landrace Yizhanghongkemai (YZHK) has exhibited adult-plant stripe rust resistance for more than one decade in a disease nursery in southwestern China. To elucidate the underlying genetic basis, quantitative trait loci (QTLs) for adult-plant stripe rust resistance in YZHK were analyzed using an inclusive composite interval mapping method. Six QTLs for adult-plant stripe rust resistance were detected on chromosomes 1BL, 2BL, 3DS, 5BL, 5DL, and 7DS in multiple environments. Notably, QYrYZHK.saas-1B, QYrYZHK.saas-2B and QYrCY.saas-5D were likely new disease resistance loci. By comparing the effects of QTL alleles on yield and its related components in field trials in which stripe rust was severe and effectively controlled, we determined that three QTLs significantly decreased yield losses due to stripe rust, among which the QTLs on chromosomes 1BL and 7DS were from YZHK, whereas the QTL on chromosome 5DL was from the other parent Chuanyu 12. These QTLs represent elite genetic resources for developing wheat varieties with adult-plant stripe rust resistance in the wheat-growing region of southwestern China.

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