Lipoxygenase (LOX) activity is closely related to wheat processing and storage quality. In the present research, ten wheat cultivars were used to compare the effects of genotype, location, year, and their interactions on the LOX activity. Furthermore, 123 wheat cultivars were evaluated for LOX activity with 192 simple sequence repeat (SSR) markers and to identify elite alleles related to LOX activity. The results indicated that LOX activity was highly affected by genotype (variety) than that by the location. A total of 22 SSR molecular marker loci with a significant or very significant correlation with LOX activity were identified on performing association analysis. In 3 years, only one molecular marker locus associated with LOX activity was detected (WMC488); in 2 years, seven molecular marker loci were detected, while in only 1 year, the other 14 molecular marker loci were detected. A total of 7 and 6 marker loci significantly related to LOX activity accounting for 31.2% and 27.2%, respectively, were located in homologous groups 4 and 5, and group 7. This research provided the theoretical basis and the markers for molecular-assisted wheat breeding that facilitate the breeding process in the processing and storage quality of grains.

脂氧合酶（LOX）的活性与小麦的加工和贮藏质量密切相关。在本研究中，使用十个小麦品种来比较基因型，位置，年份及其相互作用对LOX活性的影响。此外，用192个简单序列重复（SSR）标记对123个小麦品种的LOX活性进行了评估，并鉴定了与LOX活性相关的优良等位基因。结果表明，LOX活性受基因型（品种）的影响远大于受位点的影响。在进行关联分析时，共鉴定出22个与LOX活性具有显着或非常显着相关性的SSR分子标记基因座。在3年中，仅检测到一个与LOX活性相关的分子标记基因座（WMC488）；在2年内，检测到7个分子标记基因座，而在仅仅1年内，检测到其他14个分子标记基因座。同源于第4、5、7组的7个和6个与LOX活性显着相关的标记位点分别占31.2％和27.2％。该研究为分子辅助小麦提供了理论基础和标记促进谷物加工和储藏质量育种过程的育种。