Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening

‘Corollas and spines’ is an important trait for fresh market cucumber. In a unique cucumber line, ‘6457’, the super ovary is much larger and corolla opening is delayed by 4–5 days, thus the resulting fruit has a flower that remains on the tip, which has a high commodity value. In this study, to bett...

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Main Authors: Xiao-fei SONG, Dan-feng GE, Yang XIE, Xiao-li LI, Cheng-zhen SUN, Hao-nan CUI, Xue-yun ZHU, Ren-yi LIU, Li-ying YAN
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2022-01-01
Series:Journal of Integrative Agriculture
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Online Access:http://www.sciencedirect.com/science/article/pii/S2095311922000338
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author Xiao-fei SONG
Dan-feng GE
Yang XIE
Xiao-li LI
Cheng-zhen SUN
Hao-nan CUI
Xue-yun ZHU
Ren-yi LIU
Li-ying YAN
author_facet Xiao-fei SONG
Dan-feng GE
Yang XIE
Xiao-li LI
Cheng-zhen SUN
Hao-nan CUI
Xue-yun ZHU
Ren-yi LIU
Li-ying YAN
author_sort Xiao-fei SONG
collection DOAJ
description ‘Corollas and spines’ is an important trait for fresh market cucumber. In a unique cucumber line, ‘6457’, the super ovary is much larger and corolla opening is delayed by 4–5 days, thus the resulting fruit has a flower that remains on the tip, which has a high commodity value. In this study, to better understand the molecular basis of corolla opening, mRNA and miRNA transcriptome analyses were performed during corolla development of the super and normal ovaries. A total of 234 differentially expressed miRNAs (DEMs) and 291 differentially expressed target genes (DE-target genes) were identified from four developmental stages, and the greatest number of DEMs was found at the yellow bud stage. Thirty of the DE-target genes were regulated by more than five DEMs, among which, CsHD-Zip was regulated by 28 DEMs, followed by DD2X (18). In addition, the expression patterns of miRNA_104, miRNA_157, miRNA_349, miRNA_242, and miRNA_98 were similar during corolla development, and they shared the same target gene, CsCuRX. Moreover, several critical candidate DEMs and DE-target genes were characterized and profiled by a qRT-PCR experiment. Three of the miRNAs, miRNA_157-CsCuRX, miRNA_411-CsGH3.6, and miRNA_161/297/257-CsHD-Zip, might be responsible for corolla opening in the cucumber super ovary. This integrated study on the transcriptional and post-transcriptional profiles can provide insights into the molecular regulatory mechanism underlying corolla opening in the cucumber.
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spelling doaj-art-b52a2e317d5e4c018c40e4852ee6b1922025-08-20T03:58:50ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192022-01-012192603261410.1016/j.jia.2022.07.024Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla openingXiao-fei SONG0Dan-feng GE1Yang XIE2Xiao-li LI3Cheng-zhen SUN4Hao-nan CUI5Xue-yun ZHU6Ren-yi LIU7Li-ying YAN8Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.ChinaCenter for Agroforestry Mega Data Science, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, P.R.ChinaHebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.ChinaHebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.ChinaHebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.ChinaHebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.ChinaHebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.ChinaCenter for Agroforestry Mega Data Science, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, P.R.China; Correspondence LIU Ren-yiHebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, College of Horticultural Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.China; Correspondence YAN Li-ying‘Corollas and spines’ is an important trait for fresh market cucumber. In a unique cucumber line, ‘6457’, the super ovary is much larger and corolla opening is delayed by 4–5 days, thus the resulting fruit has a flower that remains on the tip, which has a high commodity value. In this study, to better understand the molecular basis of corolla opening, mRNA and miRNA transcriptome analyses were performed during corolla development of the super and normal ovaries. A total of 234 differentially expressed miRNAs (DEMs) and 291 differentially expressed target genes (DE-target genes) were identified from four developmental stages, and the greatest number of DEMs was found at the yellow bud stage. Thirty of the DE-target genes were regulated by more than five DEMs, among which, CsHD-Zip was regulated by 28 DEMs, followed by DD2X (18). In addition, the expression patterns of miRNA_104, miRNA_157, miRNA_349, miRNA_242, and miRNA_98 were similar during corolla development, and they shared the same target gene, CsCuRX. Moreover, several critical candidate DEMs and DE-target genes were characterized and profiled by a qRT-PCR experiment. Three of the miRNAs, miRNA_157-CsCuRX, miRNA_411-CsGH3.6, and miRNA_161/297/257-CsHD-Zip, might be responsible for corolla opening in the cucumber super ovary. This integrated study on the transcriptional and post-transcriptional profiles can provide insights into the molecular regulatory mechanism underlying corolla opening in the cucumber.http://www.sciencedirect.com/science/article/pii/S2095311922000338cucumbermiRNAcorolla openingsuper ovaries
spellingShingle Xiao-fei SONG
Dan-feng GE
Yang XIE
Xiao-li LI
Cheng-zhen SUN
Hao-nan CUI
Xue-yun ZHU
Ren-yi LIU
Li-ying YAN
Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening
Journal of Integrative Agriculture
cucumber
miRNA
corolla opening
super ovaries
title Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening
title_full Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening
title_fullStr Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening
title_full_unstemmed Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening
title_short Genome-scale mRNA and miRNA transcriptomic insights into the regulatory mechanism of cucumber corolla opening
title_sort genome scale mrna and mirna transcriptomic insights into the regulatory mechanism of cucumber corolla opening
topic cucumber
miRNA
corolla opening
super ovaries
url http://www.sciencedirect.com/science/article/pii/S2095311922000338
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