Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.

Sulforaphane is a new and effective anti-cancer component that is abundant in broccoli. In the past few years, the patterns of variability in glucosinolate content and its regulation in A. thaliana have been described in detail. However, the diversity of glucosinolate and sulforaphane contents in di...

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Main Authors: Zhansheng Li, Yumei Liu, Lingyun Li, Zhiyuan Fang, Limei Yang, Mu Zhuang, Yangyong Zhang, Honghao Lv
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0213902
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author Zhansheng Li
Yumei Liu
Lingyun Li
Zhiyuan Fang
Limei Yang
Mu Zhuang
Yangyong Zhang
Honghao Lv
author_facet Zhansheng Li
Yumei Liu
Lingyun Li
Zhiyuan Fang
Limei Yang
Mu Zhuang
Yangyong Zhang
Honghao Lv
author_sort Zhansheng Li
collection DOAJ
description Sulforaphane is a new and effective anti-cancer component that is abundant in broccoli. In the past few years, the patterns of variability in glucosinolate content and its regulation in A. thaliana have been described in detail. However, the diversity of glucosinolate and sulforaphane contents in different organs during vegetative and reproductive stages has not been clearly explained. In this paper, we firstly investigated the transcriptome profiles of the developing buds and leaves at bolting stage of broccoli (B52) to further assess the gene expression patterns involved in sulforaphane synthesis. The CYP79F1 gene, as well as nine other genes related to glucorahpanin biosynthesis, MAM1, MAM3, St5b-2, FMO GS-OX1, MY, AOP2, AOP3, ESP and ESM1 were selected by digital gene expression analysis and were validated by quantitative real-time PCR (qRT-PCR). Meanwhile, the compositions of glucosinolates and sulforaphane were detected for correlation analysis with related genes. Finally the RNA sequencing libraries generated 147 957 344 clean reads, and 8 539 unigene assemblies were produced. In digital result, only CYP79F1, in the glucoraphanin pathway, was up-regulated in young buds but absent from the other organs, which was consistent with the highest level of sulforaphane content being in this organ compared to mature buds, buds one day before flowering, flowers and leaves. The sequencing results also presented that auxin and cytokinin might affect glucoraphanin accumulation. The study revealed that up-regulated expression of CYP79F1 plays a fundamental and direct role in sulforaphane production in inflorescences. Two genes of MAM1 and St5b-2 could up-regulated glucoraphanin generation. Synergistic expression of MAM1, MAM3, St5b-2, FMO GS-OX1, MY, ESP and ESM1 was found in sulforaphane metabolism. This study will be beneficial for understanding the diversity of sulforaphane in broccoli organs.
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spelling doaj.art-fa9364eb895445289b536bb9064649b42022-12-21T19:23:21ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01143e021390210.1371/journal.pone.0213902Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.Zhansheng LiYumei LiuLingyun LiZhiyuan FangLimei YangMu ZhuangYangyong ZhangHonghao LvSulforaphane is a new and effective anti-cancer component that is abundant in broccoli. In the past few years, the patterns of variability in glucosinolate content and its regulation in A. thaliana have been described in detail. However, the diversity of glucosinolate and sulforaphane contents in different organs during vegetative and reproductive stages has not been clearly explained. In this paper, we firstly investigated the transcriptome profiles of the developing buds and leaves at bolting stage of broccoli (B52) to further assess the gene expression patterns involved in sulforaphane synthesis. The CYP79F1 gene, as well as nine other genes related to glucorahpanin biosynthesis, MAM1, MAM3, St5b-2, FMO GS-OX1, MY, AOP2, AOP3, ESP and ESM1 were selected by digital gene expression analysis and were validated by quantitative real-time PCR (qRT-PCR). Meanwhile, the compositions of glucosinolates and sulforaphane were detected for correlation analysis with related genes. Finally the RNA sequencing libraries generated 147 957 344 clean reads, and 8 539 unigene assemblies were produced. In digital result, only CYP79F1, in the glucoraphanin pathway, was up-regulated in young buds but absent from the other organs, which was consistent with the highest level of sulforaphane content being in this organ compared to mature buds, buds one day before flowering, flowers and leaves. The sequencing results also presented that auxin and cytokinin might affect glucoraphanin accumulation. The study revealed that up-regulated expression of CYP79F1 plays a fundamental and direct role in sulforaphane production in inflorescences. Two genes of MAM1 and St5b-2 could up-regulated glucoraphanin generation. Synergistic expression of MAM1, MAM3, St5b-2, FMO GS-OX1, MY, ESP and ESM1 was found in sulforaphane metabolism. This study will be beneficial for understanding the diversity of sulforaphane in broccoli organs.https://doi.org/10.1371/journal.pone.0213902
spellingShingle Zhansheng Li
Yumei Liu
Lingyun Li
Zhiyuan Fang
Limei Yang
Mu Zhuang
Yangyong Zhang
Honghao Lv
Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.
PLoS ONE
title Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.
title_full Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.
title_fullStr Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.
title_full_unstemmed Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.
title_short Transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets.
title_sort transcriptome reveals the gene expression patterns of sulforaphane metabolism in broccoli florets
url https://doi.org/10.1371/journal.pone.0213902
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