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Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome

Tea plants (Camellia sinensis) are commercially cultivated in >60 countries, and their fresh leaves are processed into tea, which is the most widely consumed beverage in the world. Although several chromosome-level tea plant genomes have been published, they collapsed the two haplotypes and ignor...

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Autores principales: Wang, Pengjie, Yu, Jiaxin, Jin, Shan, Chen, Shuai, Yue, Chuan, Wang, Wenling, Gao, Shuilian, Cao, Hongli, Zheng, Yucheng, Gu, Mengya, Chen, Xuejin, Sun, Yun, Guo, Yuqiong, Yang, Jiangfan, Zhang, Xingtan, Ye, Naixing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8087695/
https://www.ncbi.nlm.nih.gov/pubmed/33931633
http://dx.doi.org/10.1038/s41438-021-00542-x
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author Wang, Pengjie
Yu, Jiaxin
Jin, Shan
Chen, Shuai
Yue, Chuan
Wang, Wenling
Gao, Shuilian
Cao, Hongli
Zheng, Yucheng
Gu, Mengya
Chen, Xuejin
Sun, Yun
Guo, Yuqiong
Yang, Jiangfan
Zhang, Xingtan
Ye, Naixing
author_facet Wang, Pengjie
Yu, Jiaxin
Jin, Shan
Chen, Shuai
Yue, Chuan
Wang, Wenling
Gao, Shuilian
Cao, Hongli
Zheng, Yucheng
Gu, Mengya
Chen, Xuejin
Sun, Yun
Guo, Yuqiong
Yang, Jiangfan
Zhang, Xingtan
Ye, Naixing
author_sort Wang, Pengjie
collection PubMed
description Tea plants (Camellia sinensis) are commercially cultivated in >60 countries, and their fresh leaves are processed into tea, which is the most widely consumed beverage in the world. Although several chromosome-level tea plant genomes have been published, they collapsed the two haplotypes and ignored a large number of allelic variations that may underlie important biological functions in this species. Here, we present a phased chromosome-scale assembly for an elite oolong tea cultivar, “Huangdan”, that is well known for its high levels of aroma. Based on the two sets of haplotype genome data, we identified numerous genetic variations and a substantial proportion of allelic imbalance related to important traits, including aroma- and stress-related alleles. Comparative genomics revealed extensive structural variations as well as expansion of some gene families, such as terpene synthases (TPSs), that likely contribute to the high-aroma characteristics of the backbone parent, underlying the molecular basis for the biosynthesis of aroma-related chemicals in oolong tea. Our results uncovered the genetic basis of special features of this oolong tea cultivar, providing fundamental genomic resources to study evolution and domestication for the economically important tea crop.
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spelling pubmed-80876952021-05-05 Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome Wang, Pengjie Yu, Jiaxin Jin, Shan Chen, Shuai Yue, Chuan Wang, Wenling Gao, Shuilian Cao, Hongli Zheng, Yucheng Gu, Mengya Chen, Xuejin Sun, Yun Guo, Yuqiong Yang, Jiangfan Zhang, Xingtan Ye, Naixing Hortic Res Article Tea plants (Camellia sinensis) are commercially cultivated in >60 countries, and their fresh leaves are processed into tea, which is the most widely consumed beverage in the world. Although several chromosome-level tea plant genomes have been published, they collapsed the two haplotypes and ignored a large number of allelic variations that may underlie important biological functions in this species. Here, we present a phased chromosome-scale assembly for an elite oolong tea cultivar, “Huangdan”, that is well known for its high levels of aroma. Based on the two sets of haplotype genome data, we identified numerous genetic variations and a substantial proportion of allelic imbalance related to important traits, including aroma- and stress-related alleles. Comparative genomics revealed extensive structural variations as well as expansion of some gene families, such as terpene synthases (TPSs), that likely contribute to the high-aroma characteristics of the backbone parent, underlying the molecular basis for the biosynthesis of aroma-related chemicals in oolong tea. Our results uncovered the genetic basis of special features of this oolong tea cultivar, providing fundamental genomic resources to study evolution and domestication for the economically important tea crop. Nature Publishing Group UK 2021-05-01 /pmc/articles/PMC8087695/ /pubmed/33931633 http://dx.doi.org/10.1038/s41438-021-00542-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wang, Pengjie
Yu, Jiaxin
Jin, Shan
Chen, Shuai
Yue, Chuan
Wang, Wenling
Gao, Shuilian
Cao, Hongli
Zheng, Yucheng
Gu, Mengya
Chen, Xuejin
Sun, Yun
Guo, Yuqiong
Yang, Jiangfan
Zhang, Xingtan
Ye, Naixing
Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
title Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
title_full Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
title_fullStr Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
title_full_unstemmed Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
title_short Genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
title_sort genetic basis of high aroma and stress tolerance in the oolong tea cultivar genome
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8087695/
https://www.ncbi.nlm.nih.gov/pubmed/33931633
http://dx.doi.org/10.1038/s41438-021-00542-x
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