Wang Yan, Xie Hui, Chen Li-Ping
China Key Laboratory of Horticultural Plants Growth, Development and Biotechnology, Agricultural Ministry of China, Department of Horticulture, Zhejiang University, Hangzhou 310029, China.
Yi Chuan. 2011 Jun;33(6):585-90. doi: 10.3724/sp.j.1005.2011.00585.
Inheritable variation induced by plant grafting is a universal phenomenon; however, its mechanism has always been a controversial subject. In recent years, research on horizontal transfer of genetic materials between stock and scion has made great progress. The latest studies have found that genetic information in grafted plants is transported through plasmodesma and phloem to modulate the growth and development of the scion plants. Furthermore, non-coding RNAs could induce epigenetic modification, which facilitates plants to adapt to the grafting-caused stress. This article focuses on the review of recent advances in the induction and maintenance of the graft-induced genetic variation and could be helpful in thoroughly understanding the mechanism.
植物嫁接诱导的可遗传变异是一种普遍现象；然而，其机制一直是一个有争议的话题。近年来，关于砧木和接穗之间遗传物质水平转移的研究取得了很大进展。最新研究发现，嫁接植物中的遗传信息通过胞间连丝和韧皮部运输，以调节接穗植物的生长发育。此外，非编码RNA可以诱导表观遗传修饰，这有助于植物适应嫁接引起的胁迫。本文重点综述了嫁接诱导遗传变异的诱导和维持方面的最新进展，有助于深入了解其机制。
