Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit

In order to explore the key factors involved in the regulation of chilling injury formation in carbohydrate metabolism of peach fruit, we systematically analyzed the response of peach fruit to cold stress from physiological and transcriptomic perspectives. Cold stress in peach elevated malondialdehy...

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Main Authors: Deng, Xianzhu, Wei, Yingying, Chen, Yi, Ding, Phebe, Xu, Feng, Shao, Xingfeng
Format: Article
Language:English
Published: Elsevier B.V. 2025
Online Access:http://psasir.upm.edu.my/id/eprint/119460/
http://psasir.upm.edu.my/id/eprint/119460/1/119460.pdf
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author Deng, Xianzhu
Wei, Yingying
Chen, Yi
Ding, Phebe
Xu, Feng
Shao, Xingfeng
author_facet Deng, Xianzhu
Wei, Yingying
Chen, Yi
Ding, Phebe
Xu, Feng
Shao, Xingfeng
author_sort Deng, Xianzhu
building UPM Institutional Repository
collection Online Access
description In order to explore the key factors involved in the regulation of chilling injury formation in carbohydrate metabolism of peach fruit, we systematically analyzed the response of peach fruit to cold stress from physiological and transcriptomic perspectives. Cold stress in peach elevated malondialdehyde, impaired membranes, reduced sucrose via invertase-mediated hydrolysis to fructose/glucose, and may activate pentose phosphate pathway while inhibiting glycolysis pathways for metabolic maintenance and energy conservation, as suggested by phosphofructokinase and glucose-6-phosphate dehydrogenase activity shifts. Transcriptome and weighted gene co-expression network analysis revealed a series of genes respond to low-temperature stress in starch and sucrose metabolism pathway, including vacuolar invertases gene (PpVIN), hexokinase gene (PpHXK), trehalose-phosphate synthase gene (PpTPS), trehalose-phosphate phosphatase gene (PpTPP), and fructokinase gene (PpFRK), of these hub genes have been reported to resist to cold stress. In addition, by constructing co-expression network, several transcription factors (TFs) were involved in regulating hub genes related to carbohydrate metabolism in peach fruit, such as ZAT12, bZIP23, bZIP53, CBF5, and others. These TFs may serve as key regulators of the transcriptional network, modulating gene expression related to carbohydrate metabolism in response to cold stress.
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institution Universiti Putra Malaysia
institution_category Local University
language English
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publisher Elsevier B.V.
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spelling upm-1194602025-08-25T07:28:50Z http://psasir.upm.edu.my/id/eprint/119460/ Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit Deng, Xianzhu Wei, Yingying Chen, Yi Ding, Phebe Xu, Feng Shao, Xingfeng In order to explore the key factors involved in the regulation of chilling injury formation in carbohydrate metabolism of peach fruit, we systematically analyzed the response of peach fruit to cold stress from physiological and transcriptomic perspectives. Cold stress in peach elevated malondialdehyde, impaired membranes, reduced sucrose via invertase-mediated hydrolysis to fructose/glucose, and may activate pentose phosphate pathway while inhibiting glycolysis pathways for metabolic maintenance and energy conservation, as suggested by phosphofructokinase and glucose-6-phosphate dehydrogenase activity shifts. Transcriptome and weighted gene co-expression network analysis revealed a series of genes respond to low-temperature stress in starch and sucrose metabolism pathway, including vacuolar invertases gene (PpVIN), hexokinase gene (PpHXK), trehalose-phosphate synthase gene (PpTPS), trehalose-phosphate phosphatase gene (PpTPP), and fructokinase gene (PpFRK), of these hub genes have been reported to resist to cold stress. In addition, by constructing co-expression network, several transcription factors (TFs) were involved in regulating hub genes related to carbohydrate metabolism in peach fruit, such as ZAT12, bZIP23, bZIP53, CBF5, and others. These TFs may serve as key regulators of the transcriptional network, modulating gene expression related to carbohydrate metabolism in response to cold stress. Elsevier B.V. 2025-02 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/119460/1/119460.pdf Deng, Xianzhu and Wei, Yingying and Chen, Yi and Ding, Phebe and Xu, Feng and Shao, Xingfeng (2025) Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit. Postharvest Biology and Technology, 220. art. no. 113300. pp. 1-13. ISSN 0925-5214 https://linkinghub.elsevier.com/retrieve/pii/S0925521424005453 10.1016/j.postharvbio.2024.113300
spellingShingle Deng, Xianzhu
Wei, Yingying
Chen, Yi
Ding, Phebe
Xu, Feng
Shao, Xingfeng
Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
title Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
title_full Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
title_fullStr Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
title_full_unstemmed Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
title_short Gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
title_sort gene co-expression network analysis of the transcriptome identifies cold-resistant hub genes related to carbohydrate metabolism in peach fruit
url http://psasir.upm.edu.my/id/eprint/119460/
http://psasir.upm.edu.my/id/eprint/119460/
http://psasir.upm.edu.my/id/eprint/119460/
http://psasir.upm.edu.my/id/eprint/119460/1/119460.pdf