Comparative Proteomic Analysis of the Graft Unions in Hickory (Carya cathayensis) Provides Insights into Response Mechanisms to Grafting Process

Frontiers in Plant Science
Dongbin XuBingsong Zheng

Abstract

Hickory (Carya cathayensis), a tree with high nutritional and economic value, is widely cultivated in China. Grafting greatly reduces the juvenile phase length and makes the large scale cultivation of hickory possible. To reveal the response mechanisms of this species to grafting, we employed a proteomics-based approach to identify differentially expressed proteins in the graft unions during the grafting process. Our study identified 3723 proteins, of which 2518 were quantified. A total of 710 differentially expressed proteins (DEPs) were quantified and these were involved in various molecular functional and biological processes. Among these DEPs, 341 were up-regulated and 369 were down-regulated at 7 days after grafting compared with the control. Four auxin-related proteins were down-regulated, which was in agreement with the transcription levels of their encoding genes. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the 'Flavonoid biosynthesis' pathway and 'starch and sucrose metabolism' were both significantly up-regulated. Interestingly, five flavonoid biosynthesis-related proteins, a flavanone 3-hyfroxylase, a cinnamate 4-hydroxylase, a dihydroflavonol-4-reductase, a chalcone synthase, and a chalco...Continue Reading

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Citations

Dec 8, 2017·Planta·R M Saravana KumarJohan Edqvist
Mar 16, 2019·International Journal of Molecular Sciences·Chenliang YuYihua Zhan
May 31, 2018·Scientific Reports·Kaidong LiuXiaolin Zheng
Jul 20, 2019·Biomolecules·Anket SharmaBingsong Zheng
Dec 29, 2020·Frontiers in Plant Science·Aatifa RasoolParvaiz Ahmad
Feb 12, 2021·Plant Science : an International Journal of Experimental Plant Biology·Qingqing CuiQingmao Shang
Dec 22, 2020·Frontiers in Plant Science·Grégoire Loupit, Sarah Jane Cookson

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Datasets Mentioned

BETA
PXD006025
SRX2576694

Methods Mentioned

BETA
heterografts
environmental stresses

Software Mentioned

Excel
InterProScan soft
KEGG Mapper
InterPro
KAAS
Mascot

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