Gene Expression Analysis of Pak Choi in Response to Vernalization.

Pak choi is a seed vernalization-type plant whose vernalization mechanism is currently unclear. Therefore, it is critical to discover genes related to vernalization and research its functions during vernalization in pak choi. Here, the gene expression profiles in the shoot apex were analyzed after l...

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Main Authors: Mengxia Sun, Xianhui Qi, Leiping Hou, Xiaoyong Xu, Zhujun Zhu, Meilan Li
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0141446
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author Mengxia Sun
Xianhui Qi
Leiping Hou
Xiaoyong Xu
Zhujun Zhu
Meilan Li
author_facet Mengxia Sun
Xianhui Qi
Leiping Hou
Xiaoyong Xu
Zhujun Zhu
Meilan Li
author_sort Mengxia Sun
collection DOAJ
description Pak choi is a seed vernalization-type plant whose vernalization mechanism is currently unclear. Therefore, it is critical to discover genes related to vernalization and research its functions during vernalization in pak choi. Here, the gene expression profiles in the shoot apex were analyzed after low temperature treatment using high-throughput RNA sequencing technology. The results showed that there are 1,664 and 1,192 differentially expressed genes (DEGs) in pak choi in cold treatment ending and before flower bud differentiation, respectively, including 42 genes that exhibited similar expression trend at both stages. Detailed annotation revealed that the proteins encoded by the DEGs are located in the extracellular region, cell junction and extracellular matrix. These proteins exhibit activity such as antioxidant activity and binding protein/transcription factor activity, and they are involved in signal transduction and the immune system/biological processes. Among the DEGs, Bra014527 was up-regulated in low temperature treatment ending, Bra024097 was up-regulated before flower bud differentiation and Bra035940 was down-regulated at both stages in low temperature-treated shoot apices. Homologues of these genes in A. thaliana, AT3G59790, AT4G30200 and AT5G61150, are involved in flowering and vernalization, suggesting that they take part in the vernalization process in pak choi. Further pathway enrichment analysis revealed that most genes were enriched in the tryptophan metabolism and glucosinolate biosynthesis pathways. However, the functions of tryptophan and glucosinolate in vernalization are not yet clear and require further analysis.
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spelling doaj.art-845f3746bae64660af5dbb60def6d38c2022-12-21T21:30:56ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011010e014144610.1371/journal.pone.0141446Gene Expression Analysis of Pak Choi in Response to Vernalization.Mengxia SunXianhui QiLeiping HouXiaoyong XuZhujun ZhuMeilan LiPak choi is a seed vernalization-type plant whose vernalization mechanism is currently unclear. Therefore, it is critical to discover genes related to vernalization and research its functions during vernalization in pak choi. Here, the gene expression profiles in the shoot apex were analyzed after low temperature treatment using high-throughput RNA sequencing technology. The results showed that there are 1,664 and 1,192 differentially expressed genes (DEGs) in pak choi in cold treatment ending and before flower bud differentiation, respectively, including 42 genes that exhibited similar expression trend at both stages. Detailed annotation revealed that the proteins encoded by the DEGs are located in the extracellular region, cell junction and extracellular matrix. These proteins exhibit activity such as antioxidant activity and binding protein/transcription factor activity, and they are involved in signal transduction and the immune system/biological processes. Among the DEGs, Bra014527 was up-regulated in low temperature treatment ending, Bra024097 was up-regulated before flower bud differentiation and Bra035940 was down-regulated at both stages in low temperature-treated shoot apices. Homologues of these genes in A. thaliana, AT3G59790, AT4G30200 and AT5G61150, are involved in flowering and vernalization, suggesting that they take part in the vernalization process in pak choi. Further pathway enrichment analysis revealed that most genes were enriched in the tryptophan metabolism and glucosinolate biosynthesis pathways. However, the functions of tryptophan and glucosinolate in vernalization are not yet clear and require further analysis.https://doi.org/10.1371/journal.pone.0141446
spellingShingle Mengxia Sun
Xianhui Qi
Leiping Hou
Xiaoyong Xu
Zhujun Zhu
Meilan Li
Gene Expression Analysis of Pak Choi in Response to Vernalization.
PLoS ONE
title Gene Expression Analysis of Pak Choi in Response to Vernalization.
title_full Gene Expression Analysis of Pak Choi in Response to Vernalization.
title_fullStr Gene Expression Analysis of Pak Choi in Response to Vernalization.
title_full_unstemmed Gene Expression Analysis of Pak Choi in Response to Vernalization.
title_short Gene Expression Analysis of Pak Choi in Response to Vernalization.
title_sort gene expression analysis of pak choi in response to vernalization
url https://doi.org/10.1371/journal.pone.0141446
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