Triticeae Genomics and Genetics 2024, Vol.15, No.1, 1-9 http://cropscipublisher.com/index.php/tgg 1 Research Article Open Access Application of Molecular Marker Assisted Selection in Wheat Stress Resistance Breeding Hongpeng Wang, Huamin Li Biotechnology Research Center, Cuixi Academy of Biotechnology, Zhuji, 311800, Zhejiang, China Corresponding author: Lileea@gmail.com Triticeae Genomics and Genetics, 2024, Vol.15, No.1 doi: 10.5376/tgg.2024.15.0001 Received: 07 Dec., 2023 Accepted: 13 Jan., 2023 Published: 25 Jan., 2024 Copyright © 2024 Wang and Li, This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Preferred citation for this article: Wang H.P., and Li H.M., 2024, Application of molecular marker assisted selection in wheat stress resistance breeding, Triticeae Genomics and Genetics, 15(1): 1-9 (doi: 10.5376/tgg.2024.15.0001) Abstract This study explores the key role of molecular marker assisted selection in wheat stress resistance breeding. Wheat is one of the most important food crops in the world, but it faces challenges from climate change and stress, which affect yield and quality. Molecular marker technology provides a powerful tool for wheat breeding, allowing for more efficient selection of stress resistance genes. This study introduces the importance of wheat as a food crop, as well as the relationship between stress resistance and wheat breeding. Explored different types of DNA markers and their applications in wheat stress resistance breeding, including marker assisted selection, QTL analysis, and gene editing techniques. The study emphasizes the importance of molecular marker strategies and methods to accelerate the identification and breeding of stress resistant genes. Finally, some successful cases of wheat stress resistance breeding were summarized, emphasizing the potential of molecular marker assisted selection and looking forward to future development trends. This study emphasizes the importance of molecular marker technology in wheat stress resistance breeding, providing new hope for food production and food security. Keywords Wheat breeding; Resistance to adversity; Molecular markers; QTL analysis; Gene editing Wheat (Triticum aestivumL.) is one of the most important food crops in the world, occupying a core position in world food production. However, the yield and quality of wheat are often threatened by various adverse factors, such as climate change, pests and diseases, saline alkali soils, and drought. These adverse conditions have had a serious impact on the growth and development of wheat, posing a threat to global food security. Therefore, wheat stress resistance breeding has become a crucial task for current and future food production (Bakala et al., 2021). Traditional wheat breeding often takes several years to cultivate new varieties, and progress is slow. The introduction of molecular marker assisted selection (MAS) technology has completely changed the pattern of wheat stress resistance breeding. MAS uses genetic markers to identify and select individuals with specific stress resistance genes, thereby improving breeding efficiency. This method enables breeders to screen wheat germplasm resources with the required stress resistance more accurately and quickly. The goal of this study is to explore in depth the application of molecular marker assisted selection in wheat stress resistance breeding, emphasizing the potential impact of this method on wheat yield and quality, and to provide a detailed introduction to the background and importance of wheat stress resistance, from climate change to soil conditions, from growth environment to pest and disease pressure, highlighting the challenges faced by wheat. Meanwhile, we will discuss how different types of molecular markers, such as marker assisted selection, quantitative trait loci (QTL) analysis, and the latest gene editing techniques, can be applied in wheat stress resistance breeding. In addition, this study will share some successful cases of wheat stress resistance breeding, which demonstrate the effectiveness of molecular marker assisted selection methods. Finally, we will look forward to the future and explore the challenges that the field of wheat stress resistance breeding may face, such as regulatory and ethical issues, as well as the application prospects of emerging technologies and methods.
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