Genomic basis of the distinct biosynthesis of β-glucogallin, a biochemical marker for hydrolyzable tannin production, in three oak species. Yang, Q., Li, J., Wang, Y., Wang, Z., Pei, Z., Street, N. R., Bhalerao, R. P., Yu, Z., Gao, Y., Ni, J., Jiao, Y., Sun, M., Yang, X., Chen, Y., Liu, P., Wang, J., Liu, Y., & Li, G. New Phytologist, March, 2024. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.19711
Genomic basis of the distinct biosynthesis of β-glucogallin, a biochemical marker for hydrolyzable tannin production, in three oak species [link]Paper  doi  abstract   bibtex   
Hydrolyzable tannins (HTs), predominant polyphenols in oaks, are widely used in grape wine aging, feed additives, and human healthcare. However, the limited availability of a high-quality reference genome of oaks greatly hampered the recognition of the mechanism of HT biosynthesis. Here, high-quality reference genomes of three Asian oak species (Quercus variabilis, Quercus aliena, and Quercus dentata) that have different HT contents were generated. Multi-omics studies were carried out to identify key genes regulating HT biosynthesis. In vitro enzyme activity assay was also conducted. Dual-luciferase and yeast one-hybrid assays were used to reveal the transcriptional regulation. Our results revealed that β-glucogallin was a biochemical marker for HT production in the cupules of the three Asian oaks. UGT84A13 was confirmed as the key enzyme for β-glucogallin biosynthesis. The differential expression of UGT84A13, rather than enzyme activity, was the main reason for different β-glucogallin and HT accumulation. Notably, sequence variations in UGT84A13 promoters led to different trans-activating activities of WRKY32/59, explaining the different expression patterns of UGT84A13 among the three species. Our findings provide three high-quality new reference genomes for oak trees and give new insights into different transcriptional regulation for understanding β-glucogallin and HT biosynthesis in closely related oak species.
@article{yang_genomic_2024,
	title = {Genomic basis of the distinct biosynthesis of β-glucogallin, a biochemical marker for hydrolyzable tannin production, in three oak species},
	copyright = {© 2024 The Authors. New Phytologist © 2024 New Phytologist Foundation},
	issn = {1469-8137},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/nph.19711},
	doi = {10.1111/nph.19711},
	abstract = {Hydrolyzable tannins (HTs), predominant polyphenols in oaks, are widely used in grape wine aging, feed additives, and human healthcare. However, the limited availability of a high-quality reference genome of oaks greatly hampered the recognition of the mechanism of HT biosynthesis. Here, high-quality reference genomes of three Asian oak species (Quercus variabilis, Quercus aliena, and Quercus dentata) that have different HT contents were generated. Multi-omics studies were carried out to identify key genes regulating HT biosynthesis. In vitro enzyme activity assay was also conducted. Dual-luciferase and yeast one-hybrid assays were used to reveal the transcriptional regulation. Our results revealed that β-glucogallin was a biochemical marker for HT production in the cupules of the three Asian oaks. UGT84A13 was confirmed as the key enzyme for β-glucogallin biosynthesis. The differential expression of UGT84A13, rather than enzyme activity, was the main reason for different β-glucogallin and HT accumulation. Notably, sequence variations in UGT84A13 promoters led to different trans-activating activities of WRKY32/59, explaining the different expression patterns of UGT84A13 among the three species. Our findings provide three high-quality new reference genomes for oak trees and give new insights into different transcriptional regulation for understanding β-glucogallin and HT biosynthesis in closely related oak species.},
	language = {en},
	urldate = {2024-04-02},
	journal = {New Phytologist},
	author = {Yang, Qinsong and Li, Jinjin and Wang, Yan and Wang, Zefu and Pei, Ziqi and Street, Nathaniel R. and Bhalerao, Rishikesh P. and Yu, Zhaowei and Gao, Yuhao and Ni, Junbei and Jiao, Yang and Sun, Minghui and Yang, Xiong and Chen, Yixin and Liu, Puyuan and Wang, Jiaxi and Liu, Yong and Li, Guolei},
	month = mar,
	year = {2024},
	note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.19711},
	keywords = {UGT84A13, hydrolyzable tannin, oak, whole-genome sequencing, β-glucogallin},
}

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