Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress

Grapes are subject to a wide range of climatic conditions during their life cycle, but the use of rootstocks can effectively ameliorate the effects of abiotic stress. However, the tolerance mechanism of different grape rootstock varieties varies under various stresses, and systematic research on thi...

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Main Authors: Fanggui Zhao, Ting Zheng, Zhongjie Liu, Weihong Fu, Jinggui Fang
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/11/9/1167
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author Fanggui Zhao
Ting Zheng
Zhongjie Liu
Weihong Fu
Jinggui Fang
author_facet Fanggui Zhao
Ting Zheng
Zhongjie Liu
Weihong Fu
Jinggui Fang
author_sort Fanggui Zhao
collection DOAJ
description Grapes are subject to a wide range of climatic conditions during their life cycle, but the use of rootstocks can effectively ameliorate the effects of abiotic stress. However, the tolerance mechanism of different grape rootstock varieties varies under various stresses, and systematic research on this aspect is limited. On the basis of previous research, transcriptome sequencing was performed on three tolerant grape rootstock varieties (3309C, 520A, 1103P) and three intolerant grape rootstock varieties (5BB, 101–14, Beta). In total, 56,478,468 clean reads were obtained. One hundred and ten genes only existed in all combinations during P1 with a downregulated trend, and 178 genes existed only in P1 of tolerant grape rootstock varieties. Salt treatment firstly affected the photosynthesis of leaves, and tolerant varieties weakened or even eliminated this effect through their own mechanisms in the later stage. Tolerant varieties mobilized a large number of MFs during the P2 stage, such as hydrolase activity, carboxypeptidase activity, and dioxygenase activity. Carbon metabolism was significantly enriched in P1, while circadian rhythm and flavonoid biosynthesis were only enriched in tolerant varieties. In the intolerant varieties, photosynthesis-related pathways were always the most significantly enriched. There were large differences in the gene expression of the main signal pathways related to salt stress in different varieties. Salt stress affected the expression of genes related to plant abiotic stress, biotic stress, transcription factors, hormones, and secondary metabolism. Tolerant varieties mobilized more bHLH, WRKY, and MYB transcription factors to respond to salt stress than intolerant varieties. In the tolerant rootstocks, SOS was co-expressed. Among these, SOS1 and SOS2 were upregulated, and the SOS3 and SOS5 components were downregulated. The genes of heat shock proteins and the phenylalanine pathway were upregulated in the tolerant varieties. These findings outline a tolerance mechanism model for rootstocks for coping with osmotic stress, providing important information for improving the resistance of grapes under global climate change.
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spelling doaj.art-ebf18f56deab48cc8deff3628797de672023-11-23T09:02:24ZengMDPI AGPlants2223-77472022-04-01119116710.3390/plants11091167Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt StressFanggui Zhao0Ting Zheng1Zhongjie Liu2Weihong Fu3Jinggui Fang4College of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaInstitute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaGrapes are subject to a wide range of climatic conditions during their life cycle, but the use of rootstocks can effectively ameliorate the effects of abiotic stress. However, the tolerance mechanism of different grape rootstock varieties varies under various stresses, and systematic research on this aspect is limited. On the basis of previous research, transcriptome sequencing was performed on three tolerant grape rootstock varieties (3309C, 520A, 1103P) and three intolerant grape rootstock varieties (5BB, 101–14, Beta). In total, 56,478,468 clean reads were obtained. One hundred and ten genes only existed in all combinations during P1 with a downregulated trend, and 178 genes existed only in P1 of tolerant grape rootstock varieties. Salt treatment firstly affected the photosynthesis of leaves, and tolerant varieties weakened or even eliminated this effect through their own mechanisms in the later stage. Tolerant varieties mobilized a large number of MFs during the P2 stage, such as hydrolase activity, carboxypeptidase activity, and dioxygenase activity. Carbon metabolism was significantly enriched in P1, while circadian rhythm and flavonoid biosynthesis were only enriched in tolerant varieties. In the intolerant varieties, photosynthesis-related pathways were always the most significantly enriched. There were large differences in the gene expression of the main signal pathways related to salt stress in different varieties. Salt stress affected the expression of genes related to plant abiotic stress, biotic stress, transcription factors, hormones, and secondary metabolism. Tolerant varieties mobilized more bHLH, WRKY, and MYB transcription factors to respond to salt stress than intolerant varieties. In the tolerant rootstocks, SOS was co-expressed. Among these, SOS1 and SOS2 were upregulated, and the SOS3 and SOS5 components were downregulated. The genes of heat shock proteins and the phenylalanine pathway were upregulated in the tolerant varieties. These findings outline a tolerance mechanism model for rootstocks for coping with osmotic stress, providing important information for improving the resistance of grapes under global climate change.https://www.mdpi.com/2223-7747/11/9/1167graperootstocksalt stresssignal transduction
spellingShingle Fanggui Zhao
Ting Zheng
Zhongjie Liu
Weihong Fu
Jinggui Fang
Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress
Plants
grape
rootstock
salt stress
signal transduction
title Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress
title_full Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress
title_fullStr Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress
title_full_unstemmed Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress
title_short Transcriptomic Analysis Elaborates the Resistance Mechanism of Grapevine Rootstocks against Salt Stress
title_sort transcriptomic analysis elaborates the resistance mechanism of grapevine rootstocks against salt stress
topic grape
rootstock
salt stress
signal transduction
url https://www.mdpi.com/2223-7747/11/9/1167
work_keys_str_mv AT fangguizhao transcriptomicanalysiselaboratestheresistancemechanismofgrapevinerootstocksagainstsaltstress
AT tingzheng transcriptomicanalysiselaboratestheresistancemechanismofgrapevinerootstocksagainstsaltstress
AT zhongjieliu transcriptomicanalysiselaboratestheresistancemechanismofgrapevinerootstocksagainstsaltstress
AT weihongfu transcriptomicanalysiselaboratestheresistancemechanismofgrapevinerootstocksagainstsaltstress
AT jingguifang transcriptomicanalysiselaboratestheresistancemechanismofgrapevinerootstocksagainstsaltstress