综述了源流库理论的进展，着重描述了维管束作为流的通道不仅能够运输营养物质而且转运不同种类的生物信号。结合最新的研究进展，针对反向育种中染色体非重组和染色体消除两个重要步骤，展望了利用维管束转运基因沉默信号实现花器官染色体操作的技术，为反向育种技术提供新的思路。%Crop production is a process of photosynthates transportation from source to sink. The movement of photosynthates in plant vascular bundle could drive the movement of plant signaling molecules, such as hormone, transcription factor, peptides and RNAi. In reverse-breeding programs, two key steps including inhibition of chromosome recombination and selective elimination of chromosome could be manipulates by these signal. Recent advances in identifying these long-distance signals targeting flower tissues can be applied to reverse-breeding technique.
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