Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism

Maize (Zea mays L.) yield depends not only on the conversion and accumulation of carbohydrates in kernels, but also on the supply of carbohydrates by leaves. However, the carbon metabolism process in leaves can vary across different leaf regions and during the day and night. Hence, we used Weighted...

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Main Authors: Jing-lu WANG, Ying ZHANG, Xiao-di PAN, Jian-jun DU, Li-ming MA, Xin-yu GUO
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2019-02-01
Series:Journal of Integrative Agriculture
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Online Access:http://www.sciencedirect.com/science/article/pii/S2095311918620295
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author Jing-lu WANG
Ying ZHANG
Xiao-di PAN
Jian-jun DU
Li-ming MA
Xin-yu GUO
author_facet Jing-lu WANG
Ying ZHANG
Xiao-di PAN
Jian-jun DU
Li-ming MA
Xin-yu GUO
author_sort Jing-lu WANG
collection DOAJ
description Maize (Zea mays L.) yield depends not only on the conversion and accumulation of carbohydrates in kernels, but also on the supply of carbohydrates by leaves. However, the carbon metabolism process in leaves can vary across different leaf regions and during the day and night. Hence, we used Weighted Gene Co-expression Network analysis (WGCNA) with the gene expression profiles of carbon metabolism to identify the modules and genes that may associate with particular regions in a leaf and time of day. There were a total of 45 samples of maize leaves that were taken from three different regions of a growing maize leaf at five time points. Robust Multi-array Average analysis was used to pre-process the raw data of GSE85963 (accession number), and quality control of data was based on Pearson correlation coefficients. We obtained eight co-expression network modules. The modules with the highest significance of association with LeafRegion and TimePoint were selected. Functional enrichment and gene-gene interaction analyses were conducted to acquire the hub genes and pathways in these significant modules. These results can support the findings of similar studies by providing evidence of potential module genes and enriched pathways associated with leaf development in maize.
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publishDate 2019-02-01
publisher KeAi Communications Co., Ltd.
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series Journal of Integrative Agriculture
spelling doaj-art-a2f0f8d9c7c541ddb0d442f085ec7c022025-08-02T15:37:58ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192019-02-01182350360Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolismJing-lu WANG0Ying ZHANG1Xiao-di PAN2Jian-jun DU3Li-ming MA4Xin-yu GUO5WANG Jing-lu, Tel: +86-10-51503618; Beijing Key Lab of Digital Plant/Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.ChinaZHANG Ying, Tel: +86-10-51503618; Beijing Key Lab of Digital Plant/Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.ChinaBeijing Key Lab of Digital Plant/Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.ChinaBeijing Key Lab of Digital Plant/Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.ChinaBeijing Key Lab of Digital Plant/Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.ChinaCorrespondence GUO Xin-yu, Tel/Fax: +86-10-51503422; Beijing Key Lab of Digital Plant/Beijing Research Center for Information Technology in Agriculture/National Engineering Research Center for Information Technology in Agriculture/Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.ChinaMaize (Zea mays L.) yield depends not only on the conversion and accumulation of carbohydrates in kernels, but also on the supply of carbohydrates by leaves. However, the carbon metabolism process in leaves can vary across different leaf regions and during the day and night. Hence, we used Weighted Gene Co-expression Network analysis (WGCNA) with the gene expression profiles of carbon metabolism to identify the modules and genes that may associate with particular regions in a leaf and time of day. There were a total of 45 samples of maize leaves that were taken from three different regions of a growing maize leaf at five time points. Robust Multi-array Average analysis was used to pre-process the raw data of GSE85963 (accession number), and quality control of data was based on Pearson correlation coefficients. We obtained eight co-expression network modules. The modules with the highest significance of association with LeafRegion and TimePoint were selected. Functional enrichment and gene-gene interaction analyses were conducted to acquire the hub genes and pathways in these significant modules. These results can support the findings of similar studies by providing evidence of potential module genes and enriched pathways associated with leaf development in maize.http://www.sciencedirect.com/science/article/pii/S2095311918620295WGCNAmaize leafgene expressiongene modulespathways
spellingShingle Jing-lu WANG
Ying ZHANG
Xiao-di PAN
Jian-jun DU
Li-ming MA
Xin-yu GUO
Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism
Journal of Integrative Agriculture
WGCNA
maize leaf
gene expression
gene modules
pathways
title Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism
title_full Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism
title_fullStr Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism
title_full_unstemmed Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism
title_short Discovery of leaf region and time point related modules and genes in maize (Zea mays L.) leaves by Weighted Gene Co-expression Network analysis (WGCNA) of gene expression profiles of carbon metabolism
title_sort discovery of leaf region and time point related modules and genes in maize zea mays l leaves by weighted gene co expression network analysis wgcna of gene expression profiles of carbon metabolism
topic WGCNA
maize leaf
gene expression
gene modules
pathways
url http://www.sciencedirect.com/science/article/pii/S2095311918620295
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