Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon

The flesh color of oriental melons is an important commercial trait that affects consumer preferences. To explore the mechanisms underlying the flesh color formation and regulation during fruit ripening, carotenoid-targeted metabolomic and RNA-seq analysis were conducted between white-fleshed (WF) a...

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Main Authors: Xiaoyu Duan, Cai Jiang, Yaping Zhao, Ge Gao, Meng Li, Hongyan Qi
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2022-09-01
Series:Horticultural Plant Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468014122000802
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author Xiaoyu Duan
Cai Jiang
Yaping Zhao
Ge Gao
Meng Li
Hongyan Qi
author_facet Xiaoyu Duan
Cai Jiang
Yaping Zhao
Ge Gao
Meng Li
Hongyan Qi
author_sort Xiaoyu Duan
collection DOAJ
description The flesh color of oriental melons is an important commercial trait that affects consumer preferences. To explore the mechanisms underlying the flesh color formation and regulation during fruit ripening, carotenoid-targeted metabolomic and RNA-seq analysis were conducted between white-fleshed (WF) and orange-fleshed (OF) oriental melon cultivars at different stages. The carotenoid-targeted metabolomic analysis indicated that β-carotene was the major metabolite that caused differences in flesh color between the two cultivars. Additionally, through KEGG pathway enrichment and weighted gene co-expression network (WGCNA) analysis, metabolic pathways and related transcription factors that are associated with carotenoid metabolism were selected and transcriptome data was verified using RT-qPCR. Finally, the yeast one hybrid and luciferase activity showed that the transcription factor CmWRKY49 could directly bind to the CmPSY1 promoter to activate its expression in the ‘OF’ cultivar. Transient overexpression of CmWRKY49 in ‘OF’ cultivar increased the β-carotene content, while the β-carotene content decreased when it was silenced in the same cultivar. This study provides insights into the underlying regulatory network of carotenoid metabolism in oriental melon fruit.
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spelling doaj.art-0f2c2da5664c48fd930a25f775eb62622024-04-16T22:22:14ZengKeAi Communications Co., Ltd.Horticultural Plant Journal2468-01412022-09-0185650666Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melonXiaoyu Duan0Cai Jiang1Yaping Zhao2Ge Gao3Meng Li4Hongyan Qi5Key Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, National and Local Joint Engineering Research Centre of Northern Horticultural, Facilities Design and Application Technology (Liaoning), Shenyang 110866, ChinaNanodigmbio Biotechnology Co., Ltd. Nanjing 210038, ChinaKey Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, National and Local Joint Engineering Research Centre of Northern Horticultural, Facilities Design and Application Technology (Liaoning), Shenyang 110866, ChinaKey Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, National and Local Joint Engineering Research Centre of Northern Horticultural, Facilities Design and Application Technology (Liaoning), Shenyang 110866, ChinaKey Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, National and Local Joint Engineering Research Centre of Northern Horticultural, Facilities Design and Application Technology (Liaoning), Shenyang 110866, ChinaKey Laboratory of Protected Horticulture of Education Ministry and Liaoning Province, College of Horticulture, Shenyang Agricultural University, National and Local Joint Engineering Research Centre of Northern Horticultural, Facilities Design and Application Technology (Liaoning), Shenyang 110866, China; Corresponding author.The flesh color of oriental melons is an important commercial trait that affects consumer preferences. To explore the mechanisms underlying the flesh color formation and regulation during fruit ripening, carotenoid-targeted metabolomic and RNA-seq analysis were conducted between white-fleshed (WF) and orange-fleshed (OF) oriental melon cultivars at different stages. The carotenoid-targeted metabolomic analysis indicated that β-carotene was the major metabolite that caused differences in flesh color between the two cultivars. Additionally, through KEGG pathway enrichment and weighted gene co-expression network (WGCNA) analysis, metabolic pathways and related transcription factors that are associated with carotenoid metabolism were selected and transcriptome data was verified using RT-qPCR. Finally, the yeast one hybrid and luciferase activity showed that the transcription factor CmWRKY49 could directly bind to the CmPSY1 promoter to activate its expression in the ‘OF’ cultivar. Transient overexpression of CmWRKY49 in ‘OF’ cultivar increased the β-carotene content, while the β-carotene content decreased when it was silenced in the same cultivar. This study provides insights into the underlying regulatory network of carotenoid metabolism in oriental melon fruit.http://www.sciencedirect.com/science/article/pii/S2468014122000802Oriental melonCarotenoidTranscriptome analysisWRKYCmPSY1
spellingShingle Xiaoyu Duan
Cai Jiang
Yaping Zhao
Ge Gao
Meng Li
Hongyan Qi
Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon
Horticultural Plant Journal
Oriental melon
Carotenoid
Transcriptome analysis
WRKY
CmPSY1
title Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon
title_full Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon
title_fullStr Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon
title_full_unstemmed Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon
title_short Transcriptome and metabolomics analysis revealed that CmWRKY49 regulating CmPSY1 promotes β-carotene accumulation in orange fleshed oriental melon
title_sort transcriptome and metabolomics analysis revealed that cmwrky49 regulating cmpsy1 promotes β carotene accumulation in orange fleshed oriental melon
topic Oriental melon
Carotenoid
Transcriptome analysis
WRKY
CmPSY1
url http://www.sciencedirect.com/science/article/pii/S2468014122000802
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