Mechanism for efficient nitrogen utilization by peach rootstock GF677 (<i>Prunus amygdalus</i> × <i>Prunus persica</i>) in alkaline orchard soils.

ABSTRACT: GF677 is a widely used peach rootstock with resistance to chlorosis and continuous-cropping disease. Peach varieties grafted onto GF677 generally exhibit larger leaf area and deep green foliage in alkaline soils, demonstrating a higher nitrogen utilization efficiency (NUE) than other rootstocks. To elucidate the mechanism for the higher NUE of GF677, we grafted four peach varieties onto either GF677 or peach (Prunus persica, the control rootstock) in alkaline soils. The results revealed that grafting of peach varieties onto GF677 resulted in larger leaf area and significantly higher total nitrogen content than grafting onto the control rootstock. Comparative transcriptomic analysis and WGCNA showed that the grafting onto GF677 significantly up-regulated 13 genes related to nitrogen

SUBMITTER: Song HY 

PROVIDER: S-EPMC12702726 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature