Among the cereal crops, wheat is an important food crop and acts as the staple food for more than half of the world's population. The genetic bottleneck of domestication and modernization has narrowed down the genetic base for different economically important traits in wheat. The involvement of wild species in the wheat hybridization program faced the difficulties of pre- and post-fertilization barriers and the presence of Ph1 locus. The distant crosses provide useful variation which is beneficial for wheat improvement programs. The wild relative species of wheat harbor several important genes for nutritional traits such as gluten protein, micronutrients (grain Fe and Zn), vitamins, and other minerals and play a significant role in end-use quality. The gluten strength relies upon the glutenin protein. The glutenin consists of two types, i.e., high molecular weight glutenins (HMW-GS) and low molecular weight glutenins (LMW-GS) which help in improving wheat processing quality. In wheat, gene transfer occurs as a consequence of direct cross, breeding protocols, and genetic recombination assisted by special manipulation techniques. Alien introgression from wild relatives is an important source of new allelic variation for the genetic enhancement of nutritional quality. The wild relative species such as Aegilops spp., T. boeoticum, and T. dicoccoides have been used in hybridization, and genes related to protein, and micronutrients have been transferred in the cultivated varieties. Through this review, an attempt has been made to compile comprehensive information on the potential of wild species for the improvement of nutritional and end-use quality traits through alien introgression.

在谷类作物中，小麦是重要的粮食作物，是世界一半以上人口的主食。驯化和现代化的遗传瓶颈缩小了小麦不同经济重要性状的遗传基础。野生物种参与小麦杂交计划面临着施肥前后障碍和Ph1存在的困难轨迹。远交提供了有益的变异，有利于小麦改良计划。小麦的野生近缘种含有几个重要的营养性状基因，如面筋蛋白、微量营养素（谷物铁和锌）、维生素和其他矿物质，并在最终用途质量中发挥重要作用。面筋强度依赖于麦谷蛋白。麦谷蛋白由有助于提高小麦加工质量的高分子量麦谷蛋白（HMW-GS）和低分子量麦谷蛋白（LMW-GS）两种类型组成。在小麦中，基因转移是直接杂交、育种协议和特殊操作技术辅助的基因重组的结果。野生近缘种的外来基因渗入是遗传增强营养质量的新等位基因变异的重要来源。Aegilops spp . , T. boeoticum 和 T. dicoccoides已被用于杂交，并且与蛋白质相关的基因和微量营养素已被转移到栽培品种中。通过这次审查，已尝试汇编有关野生物种通过外来基因渗入改善营养和最终用途质量性状的潜力的综合信息。