Current Progress and Future Prospect of Wheat Genetics Research towards an Enhanced Nitrogen Use Efficiency
文献类型： 外文期刊
作者： Zhao, Yun 1 ; Islam, Shahidul 1 ; Alhabbar, Zaid 5 ; Zhang, Jingjuan 1 ; O'Hara, Graham 1 ; Anwar, Masood 1 ; Ma, Wujun 1 ;
作者机构： 1.Murdoch Univ, Food Futures Inst, Perth 6150, Australia
2.Murdoch Univ, Coll Sci Hlth Engn & Educ, Perth 6150, Australia
3.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Lab Crop Genet & Breeding Hebei, Shijiazhuang 050035, Peoples R China
4.North Dakota State Univ, Dept Plant Sci, Fargo, ND 58108 USA
5.Univ Mosul, Coll Agr & Forestry, Dept Field Crops, Mosul 41002, Iraq
6.Qingdao Agr Univ, Coll Agron, Qingdao 266109, Peoples R China
关键词： wheat; nitrogen use efficiency; grain yield; grain protein content; QTLs; molecular markers
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN：
年卷期： 2023 年 12 卷 9 期
页码：
收录情况： SCI
摘要： To improve the yield and quality of wheat is of great importance for food security worldwide. One of the most effective and significant approaches to achieve this goal is to enhance the nitrogen use efficiency (NUE) in wheat. In this review, a comprehensive understanding of the factors involved in the process of the wheat nitrogen uptake, assimilation and remobilization of nitrogen in wheat were introduced. An appropriate definition of NUE is vital prior to its precise evaluation for the following gene identification and breeding process. Apart from grain yield (GY) and grain protein content (GPC), the commonly recognized major indicators of NUE, grain protein deviation (GPD) could also be considered as a potential trait for NUE evaluation. As a complex quantitative trait, NUE is affected by transporter proteins, kinases, transcription factors (TFs) and micro RNAs (miRNAs), which participate in the nitrogen uptake process, as well as key enzymes, circadian regulators, cross-talks between carbon metabolism, which are associated with nitrogen assimilation and remobilization. A series of quantitative genetic loci (QTLs) and linking markers were compiled in the hope to help discover more efficient and useful genetic resources for breeding program. For future NUE improvement, an exploration for other criteria during selection process that incorporates morphological, physiological and biochemical traits is needed. Applying new technologies from phenomics will allow high-throughput NUE phenotyping and accelerate the breeding process. A combination of multi-omics techniques and the previously verified QTLs and molecular markers will facilitate the NUE QTL-mapping and novel gene identification.
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