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六倍体合成小麦——过去、现在与未来
Synthetic Hexaploid Wheat: Yesterday, Today, and Tomorrow
In recent years, wheat yield per hectare appears to have reached a plateau, leading to concerns for future food security with an increasing world population. Since its invention, synthetic hexaploid wheat (SHW) has been shown to be an effective genetic resource for transferring agronomically important genes from wild relatives to common wheat. It provides new sources for yield potential, drought tolerance, disease resistance, and nutrient-use efficiency when bred conventionally with modern wheat varieties. SHW is becoming more and more important for modern wheat breeding. Here, we review the current status of SHW generation, study, and application, with a particular focus on its contribution to wheat breeding. We also briefly introduce the most recent progress in our understanding of the molecular mechanisms for growth vigor in SHW. Advances in new technologies have made the complete wheat reference genome available, which offers a promising future for the study and applications of SHW in wheat improvement that are essential to meet global food demand.
Synthetic wheat / Wheat / Polyploidization / Disease resistance / Stress tolerance / Yield
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The work related to synthetic wheat is supported by National Natural Science Foundation of China (31661143007 and 31571665) and the Major Breeding Program from Ministry of Science and Technology of China (2016YFD0101004 and 2016YFD0102002).
Aili Li, Dengcai Liu, Wuyun Yang, Masahiro Kishii, and Long Mao declare that they have no conflict of interest or financial conflicts to disclose.
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