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  Genome-wide dissection of co-selected UV-B responsive pathways in the UV-B adaptation of qingke

Zeng, X., Yuan, H., Dong, X., Peng, M., Jing, X., Xu, Q., et al. (2019). Genome-wide dissection of co-selected UV-B responsive pathways in the UV-B adaptation of qingke. Molecular Plant, 13(1), 112-127. doi:10.1016/j.molp.2019.10.009.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-3F0C-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-81D0-D
Genre: Journal Article

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 Creators:
Zeng, Xingquan1, Author
Yuan, Hongjun1, Author
Dong, Xuekui1, Author
Peng, Meng1, Author
Jing, Xinyu1, Author
Xu, Qijun1, Author
Tang, Tang1, Author
Wang, Yulin1, Author
Zha, Sang1, Author
Gao, Meng1, Author
Li, Congzhi1, Author
Shu, Chujin1, Author
Wei, Zexiu1, Author
Qimei, Wangmu1, Author
Basang, Yuzhen1, Author
Dunzhu, Jiabu1, Author
Li, Zeqing1, Author
Bai, Lijun1, Author
Shi, Jian1, Author
Zheng, Zhigang1, Author
Yu, Sibin1, AuthorFernie, A. R.2, Author              Luo, Jie1, AuthorNyima, Tashi1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Central Metabolism, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753339              

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Free keywords: Tibetan hulless barley, UV-B radiation, constitutive and induced accumulation, phenylpropanoid, MYB transcription factor
 Abstract: Qingke (Tibetan hulless barley) has long been cultivated and exposed to long-term and strong UV-B radiation on the Tibetan Plateau, which renders it an ideal target for elucidating novel UV-B responsive mechanisms. Here we report a comprehensive metabolite profiling and metabolite-based genome-wide association study using 196 diverse qingke and barley accessions. Our results demonstrated both constitutive and induced accumulation, and common genetic regulation, of metabolites of the different phenylpropanoid branches in UV-B protection. A total of 90 significant mGWAS loci for these metabolites were located in the barley-qingke differentiation regions and a number of high-level metabolite trait alleles were found to be significantly enriched in qingke, suggesting co-selection of various phenylpropanoids. Upon dissecting the entire phenylpropanoid pathway, we identified a number of determinants controlling natural variation of phenylpropanoid contents, including three novel proteins, a flavone C-pentosyltransferase, a tyramine hydroxycinnamoyl acyltransferase and a MYB transcription factor. Our study, furthermore, demonstrated co-selection of both constitutive and induced phenylpropanoids for UV-B protection in this species.

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Language(s): eng - English
 Dates: 20192019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.molp.2019.10.009
BibTex Citekey: ZENG2019
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Title: Molecular Plant
Source Genre: Journal
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Publ. Info: Oxford University Press
Pages: - Volume / Issue: 13 (1) Sequence Number: - Start / End Page: 112 - 127 Identifier: ISSN: 1674-2052
CoNE: https://pure.mpg.de/cone/journals/resource/1674-2052