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ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Functional and Applied Plant Genomics
Volume 15 - 2024 |
doi: 10.3389/fpls.2024.1449006
Genomic analyses of agronomic traits in tea plants and related Camellia species
Provisionally accepted
Shengchang Duan
1
Liang Yan
2
Zongfang Shen
3*
Xuzhen Li
1
Baozheng Chen
1
Dawei Li
1
Hantao Qin
3*
Muditha K. Meegahakumbura
3
Moses C. Wambulwa
3
Lianming Gao
3*
Wei Chen
1*
Yang Dong
1*
Jun Sheng
1*- 1 Yunnan Agricultural University, Kunming, China
- 2 West Yunnan University of Applied Sciences, Dali, China
- 3 Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, Yunnan, China
The genus Camellia contains three types of domesticates that meet various needs of ancient humans: the ornamental C. japonica, the edible oil-producing C. oleifera, and the beverage-purposed tea plant C. sinensis. The genomic drivers of the functional diversification of Camellia domesticates remain unknown. Here, we present the genomic variations of 625 Camellia accessions based on a new genome assembly of C. sinensis var. assamica ('YK10'), which consists of 15 pseudo-chromosomes with a total length of 3.35 Gb and a contig N50 of 816,948 bp. These accessions were mainly distributed in East Asia, South Asia, Southeast Asia, and Africa. We profiled the population and subpopulation structure in tea tree Camellia to find new evidence for the parallel domestication of C. sinensis var. assamica (CSA) and C. sinensis var. sinensis (CSS). We also identified candidate genes associated with traits differentiating CSA, CSS, oilseed Camellia, and ornamental Camellia cultivars. Our results provide a unique global view of the genetic diversification of Camellia domesticates and provide valuable resources for ongoing functional and molecular breeding research.
Keywords: Camellia, Camellia sinensis var. assamica cv. 'Yunkang10', Resequencing, pangenome, Assembly
Received: 14 Jun 2024; Accepted: 07 Aug 2024.
Copyright: © 2024 Duan, Yan, Shen, Li, Chen, Li, Qin, Meegahakumbura, Wambulwa, Gao, Chen, Dong and Sheng. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Zongfang Shen, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, Yunnan, China
Hantao Qin, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, Yunnan, China
Lianming Gao, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, Yunnan, China
Wei Chen, Yunnan Agricultural University, Kunming, China
Yang Dong, Yunnan Agricultural University, Kunming, China
Jun Sheng, Yunnan Agricultural University, Kunming, China
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