 This study examined the effects of different rootstocks on the cold tolerance of scions. It found that certain genes are shared between the scion and rootstock, suggesting that these genes may be responsible for the increased cold tolerance of the scion when growing on a particular rootstock. Additionally, it was discovered that some of these genes can move between the scion and rootstock, indicating that they may play a role in the transfer of information between them. This knowledge could be used to develop new techniques to increase the cold tolerance of grafted trees. This article was authored by Yang Sook Lee, Nam Vihuang, Ban Jiapdu, and others.