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Figure 1. 

Schematic illustration of the traditional hybrids and synthetic apomixis achieved by one-step installation. (a) Conventional hybrids show hybrid vigor in the F1 generation, but segregate in the following F2 generation; (b) Synthetic apomictic lines were created by introducing the all-in-one construct into the calli derived from F1 mature embryos. Once the apomixis was achieved, the major agronomic traits will never segregate across generations, which means these traits have been 'eternally' fixed. (c) Schematic map of the all-in-one vector (modified according to Vernet et al.^[7]).