RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)

Blue fescue is a widely used ornamental grass because of its strong ecological adaptability. To maintain the optimal ornamental plant shape, blue fescue requires many nutrients and labor. Using dwarf varieties with slow growth is an effective way to fulfill these requirements. In this study, we inve...

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Main Authors: Yong Zhang, Peng Han, Ruijie Zhao, Shuhan Yu, Hang Liu, Hong Wu, Jinyang Weng, Hengfeng Zhang
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/13/23/3357
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author Yong Zhang
Peng Han
Ruijie Zhao
Shuhan Yu
Hang Liu
Hong Wu
Jinyang Weng
Hengfeng Zhang
author_facet Yong Zhang
Peng Han
Ruijie Zhao
Shuhan Yu
Hang Liu
Hong Wu
Jinyang Weng
Hengfeng Zhang
author_sort Yong Zhang
collection DOAJ
description Blue fescue is a widely used ornamental grass because of its strong ecological adaptability. To maintain the optimal ornamental plant shape, blue fescue requires many nutrients and labor. Using dwarf varieties with slow growth is an effective way to fulfill these requirements. In this study, we investigated the dwarfing mechanism of <i>dw-1</i>, a blue fescue dwarfing mutant, using physiological, transcriptomic, and proteomic methods. The peroxidase (POD) enzyme activity and chlorophyll content of <i>dw-1</i> significantly increased, while the lignin, gibberellin (GA), and indoleacetic acid (IAA) content significantly decreased. A total of 7668 differentially expressed genes (DEGs) were detected using RNA-seq, of which 2543 were upregulated and 5125 were downregulated. A total of 165 differentially expressed proteins (DEPs) were detected using iTRAQ, of which 68 were upregulated and 97 were downregulated. KEGG enrichment analysis showed that the diterpene biosynthesis pathway, tryptophan metabolism pathway, and phenylpropanoid biosynthesis pathway were significantly enriched at both the transcriptional and protein levels. As a result, we can formulate the following hypothesis about the <i>dw-1</i> dwarfing phenotype: the downregulation of genes and proteins related to IAA and GA biosynthesis is associated with the dwarf phenotype’s formation, and metabolic pathways related to lignin synthesis, such as phenylpropanoid biosynthesis, also play an important role. Our work will contribute to a new understanding of the genes and proteins involved in the blue fescue dwarf phenotype.
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spelling doaj-art-07afa5f718aa438fb19908e2cfd85da52025-08-20T01:55:38ZengMDPI AGPlants2223-77472024-11-011323335710.3390/plants13233357RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)Yong Zhang0Peng Han1Ruijie Zhao2Shuhan Yu3Hang Liu4Hong Wu5Jinyang Weng6Hengfeng Zhang7School of Landscape Architecture and Horticulture, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, ChinaCollege of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Landscape Architecture, Zhejiang A&F University, Hangzhou 311300, ChinaSchool of Landscape Architecture and Horticulture, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, ChinaSchool of Landscape Architecture and Horticulture, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, ChinaSchool of Landscape Architecture and Horticulture, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, ChinaSchool of Landscape Architecture and Horticulture, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, ChinaBlue fescue is a widely used ornamental grass because of its strong ecological adaptability. To maintain the optimal ornamental plant shape, blue fescue requires many nutrients and labor. Using dwarf varieties with slow growth is an effective way to fulfill these requirements. In this study, we investigated the dwarfing mechanism of <i>dw-1</i>, a blue fescue dwarfing mutant, using physiological, transcriptomic, and proteomic methods. The peroxidase (POD) enzyme activity and chlorophyll content of <i>dw-1</i> significantly increased, while the lignin, gibberellin (GA), and indoleacetic acid (IAA) content significantly decreased. A total of 7668 differentially expressed genes (DEGs) were detected using RNA-seq, of which 2543 were upregulated and 5125 were downregulated. A total of 165 differentially expressed proteins (DEPs) were detected using iTRAQ, of which 68 were upregulated and 97 were downregulated. KEGG enrichment analysis showed that the diterpene biosynthesis pathway, tryptophan metabolism pathway, and phenylpropanoid biosynthesis pathway were significantly enriched at both the transcriptional and protein levels. As a result, we can formulate the following hypothesis about the <i>dw-1</i> dwarfing phenotype: the downregulation of genes and proteins related to IAA and GA biosynthesis is associated with the dwarf phenotype’s formation, and metabolic pathways related to lignin synthesis, such as phenylpropanoid biosynthesis, also play an important role. Our work will contribute to a new understanding of the genes and proteins involved in the blue fescue dwarf phenotype.https://www.mdpi.com/2223-7747/13/23/3357blue fescuedwarfing mechanismGAsIAAlignin
spellingShingle Yong Zhang
Peng Han
Ruijie Zhao
Shuhan Yu
Hang Liu
Hong Wu
Jinyang Weng
Hengfeng Zhang
RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)
Plants
blue fescue
dwarfing mechanism
GAs
IAA
lignin
title RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)
title_full RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)
title_fullStr RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)
title_full_unstemmed RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)
title_short RNA-Seq Transcriptomics and iTRAQ Proteomics Analysis Reveal the Dwarfing Mechanism of Blue Fescue (<i>Festuca glauca</i>)
title_sort rna seq transcriptomics and itraq proteomics analysis reveal the dwarfing mechanism of blue fescue i festuca glauca i
topic blue fescue
dwarfing mechanism
GAs
IAA
lignin
url https://www.mdpi.com/2223-7747/13/23/3357
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