Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn
Drought is a key factor that limits plant growth and yield. Yellowhorn is an important and vigorously promoted oil tree in China. It can survive under certain drought conditions, but a lack of water severely restricts its growth and results in yield losses in arid and semi-arid areas. Therefore, it...
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doaj-c42aa6d98a234a7c97e6e7377040abd32020-11-25T03:06:06ZengMDPI AGForests1999-49072020-08-011184084010.3390/f11080840Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in YellowhornXiaojuan Liu0Yifan Cui1Zhiyan Wu2Yang Zhao3Xiaoyu Hu4Quanxin Bi5Suzhi Yang6Libing Wang7State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy Forestry, Beijing 100091, ChinaState Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy Forestry, Beijing 100091, ChinaChifeng Academy Forestry, Chifeng 024000, ChinaState Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy Forestry, Beijing 100091, ChinaState Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy Forestry, Beijing 100091, ChinaState Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy Forestry, Beijing 100091, ChinaChifeng Academy Forestry, Chifeng 024000, ChinaState Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy Forestry, Beijing 100091, ChinaDrought is a key factor that limits plant growth and yield. Yellowhorn is an important and vigorously promoted oil tree in China. It can survive under certain drought conditions, but a lack of water severely restricts its growth and results in yield losses in arid and semi-arid areas. Therefore, it is important to identify the key pathways and genes to understand the mechanisms of its drought resistance. In this study, we evaluated drought resistance in four types of yellowhorn, and obtained 2669 and 2451 differentially expressed genes (DEGs) via the transcriptome analysis of the comparison of water-saving/water-consuming and fast-growing/slow-growing yellowhorn, respectively, under long-term drought conditions. The gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of DEGs showed the key biological processes and metabolic pathways involved in drought resistance, which demonstrated that there are both the same and different biological processes involved in regulating water use efficiency (WUE) and growth in response to drought stress. Furthermore, the network analysis indicated hub genes (especially seven protein kinases) and potential co-expressed gene clusters in a greenyellow module associated with WUE and a blue module associated with growth. These identified hub genes and key biological processes can significantly enhance our knowledge about the molecular mechanisms of drought resistance in yellowhorn.https://www.mdpi.com/1999-4907/11/8/840droughttranscriptomeDEGsweighted gene co-expression network analysis (WGCNA)hub genes |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xiaojuan Liu Yifan Cui Zhiyan Wu Yang Zhao Xiaoyu Hu Quanxin Bi Suzhi Yang Libing Wang |
spellingShingle |
Xiaojuan Liu Yifan Cui Zhiyan Wu Yang Zhao Xiaoyu Hu Quanxin Bi Suzhi Yang Libing Wang Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn Forests drought transcriptome DEGs weighted gene co-expression network analysis (WGCNA) hub genes |
author_facet |
Xiaojuan Liu Yifan Cui Zhiyan Wu Yang Zhao Xiaoyu Hu Quanxin Bi Suzhi Yang Libing Wang |
author_sort |
Xiaojuan Liu |
title |
Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn |
title_short |
Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn |
title_full |
Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn |
title_fullStr |
Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn |
title_full_unstemmed |
Transcriptome and Co-Expression Network Analyses Identify the Molecular Signatures Underlying Drought Resistance in Yellowhorn |
title_sort |
transcriptome and co-expression network analyses identify the molecular signatures underlying drought resistance in yellowhorn |
publisher |
MDPI AG |
series |
Forests |
issn |
1999-4907 |
publishDate |
2020-08-01 |
description |
Drought is a key factor that limits plant growth and yield. Yellowhorn is an important and vigorously promoted oil tree in China. It can survive under certain drought conditions, but a lack of water severely restricts its growth and results in yield losses in arid and semi-arid areas. Therefore, it is important to identify the key pathways and genes to understand the mechanisms of its drought resistance. In this study, we evaluated drought resistance in four types of yellowhorn, and obtained 2669 and 2451 differentially expressed genes (DEGs) via the transcriptome analysis of the comparison of water-saving/water-consuming and fast-growing/slow-growing yellowhorn, respectively, under long-term drought conditions. The gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of DEGs showed the key biological processes and metabolic pathways involved in drought resistance, which demonstrated that there are both the same and different biological processes involved in regulating water use efficiency (WUE) and growth in response to drought stress. Furthermore, the network analysis indicated hub genes (especially seven protein kinases) and potential co-expressed gene clusters in a greenyellow module associated with WUE and a blue module associated with growth. These identified hub genes and key biological processes can significantly enhance our knowledge about the molecular mechanisms of drought resistance in yellowhorn. |
topic |
drought transcriptome DEGs weighted gene co-expression network analysis (WGCNA) hub genes |
url |
https://www.mdpi.com/1999-4907/11/8/840 |
work_keys_str_mv |
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