Sugars promote graft union development in the heterograft of cucumber onto pumpkin.

ABSTRACT: The use of heterografts is widely applied for the production of several important commercial crops, but the molecular mechanism of graft union formation remains poorly understood. Here, cucumber grafted onto pumpkin was used to study graft union development, and genome-wide tempo-spatial gene expression at the graft interface was comprehensively investigated. Histological analysis suggested that resumption of the rootstock growth occurred after both phloem and xylem reconnection, and the scion showed evident callus production compared with the rootstock 3 days after grafting. Consistently, transcriptome data revealed specific responses between the scion and rootstock in the expression of genes related to cambium development, the cell cycle, and sugar metabolism during both vascular reconne

SUBMITTER: Miao L 

PROVIDER: S-EPMC8245404 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature