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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2018.06.018
|2 doi
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|a pubmed24n0954.xml
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|a eng
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| 100 |
1 |
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|a Xia, Jing
|e verfasserin
|4 aut
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| 245 |
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|a Deciphering transcriptome profiles of tetraploid Artemisia annua plants with high artemisinin content
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 30.10.2018
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|a Date Revised 08.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2018 Elsevier Masson SAS. All rights reserved.
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|a To investigate on the effects of autopolyploidization on growth and artemisinin biosynthesis in Artemisia annua, we performed a comprehensive transcriptomic characterization of diploid and induced autotetraploid A. annua. The polyploidization treatment not only enhanced photosynthetic capacity and endogenous contents of indole-3-acetic acid (IAA), abscisic acid (ABA) and jasmonic acid (JA), oxidative stress, but increased the average level of artemisinin in tetraploids from 42.0 to 63.6%. The obvious phenotypic alterations in tetraploids were observed including shorter stems, larger size of stomata and glandular secretory trichomes (GSTs), larger leaves, more branches and roots. A total of 8763 (8.85%) differentially expressed genes (DEGs) were identified in autotetraploids and mainly involved in carbohydrate metabolic processes, cell wall organization and defense responses. Both the up-regulated expression of DNA methylation unigenes and enhanced level of DNA methylation in autotetraploids indicated a possible role of DNA methylation on transcriptomic remodeling and phenotypic alteration. The up-regulated genes were enriched in response to extracellular protein biosynthesis, photosynthesis and hormone stimulus for cell enlargement and phenotypic alteration. The genomic shock induced by chromosome duplication stimulated the expression of transcripts related to oxidative stress, biosynthesis and signal transduction of ABA and JA, and key enzymes in artemisinin biosynthetic pathway, leading to the increased accumulation of artemisinin. This is the first transcriptomic research that identifies DEGs involved in the polyploidization of A. annua. The results provide novel information for understanding the complexity of polyploidization and for further identification of the factors and genes involve in artemisinin biosynthesis
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|a Journal Article
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|a Artemisia annua L.
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|a Artemisinin biosynthesis
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|a Autopolyploidy
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|a Phenotypic alteration
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|a Transcriptome
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|a Artemisinins
|2 NLM
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| 650 |
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|a artemisinin
|2 NLM
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| 650 |
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|a 9RMU91N5K2
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| 700 |
1 |
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|a Ma, Yan Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jian Wen
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 130(2018) vom: 05. Sept., Seite 112-126
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|g volume:130
|g year:2018
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|g pages:112-126
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|u http://dx.doi.org/10.1016/j.plaphy.2018.06.018
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