Species delimitation of tea plants (Camellia sect. Thea) based on super-barcodes

doi:10.1186/s12870-024-04882-3

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	Species delimitation of tea plants (Camellia sect. Thea) based on super-barcodes
	Jiang, Yinzi; Yang, Junbo; Folk, Ryan A.; Zhao, Jianli; Liu, Jie; He, Zhengshan; Peng, Hua; Yang, Shixiong; Xiang, Chunlei; Yu, Xiangqin
	2024
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	24 期号:1 页码:181
摘要	Background The era of high throughput sequencing offers new paths to identifying species boundaries that are complementary to traditional morphology-based delimitations. De novo species delimitation using traditional or DNA super-barcodes serve as efficient approaches to recognizing putative species (molecular operational taxonomic units, MOTUs). Tea plants (Camellia sect. Thea) form a group of morphologically similar species with significant economic value, providing the raw material for tea, which is the most popular nonalcoholic caffeine-containing beverage in the world. Taxonomic challenges have arisen from vague species boundaries in this group. Results Based on the most comprehensive sampling of C. sect. Thea by far (165 individuals of 39 morphospecies), we applied three de novo species delimitation methods (ASAP, PTP, and mPTP) using plastome data to provide an independent evaluation of morphology-based species boundaries in tea plants. Comparing MOTU partitions with morphospecies, we particularly tested the congruence of MOTUs resulting from different methods. We recognized 28 consensus MOTUs within C. sect. Thea, while tentatively suggesting that 11 morphospecies be discarded. Ten of the 28 consensus MOTUs were uncovered as morphospecies complexes in need of further study integrating other evidence. Our results also showed a strong imbalance among the analyzed MOTUs in terms of the number of molecular diagnostic characters. Conclusion This study serves as a solid step forward for recognizing the underlying species boundaries of tea plants, providing a needed evidence-based framework for the utilization and conservation of this economically important plant group.
DOI	10.1186/s12870-024-04882-3
WOS记录号	WOS:001182474400001
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75859
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Jiang, Yinzi,Yang, Junbo,Folk, Ryan A.,et al. Species delimitation of tea plants (Camellia sect. Thea) based on super-barcodes[J]. BMC PLANT BIOLOGY,2024,24(1):181.
APA	Jiang, Yinzi.,Yang, Junbo.,Folk, Ryan A..,Zhao, Jianli.,Liu, Jie.,...&Yu, Xiangqin.(2024).Species delimitation of tea plants (Camellia sect. Thea) based on super-barcodes.BMC PLANT BIOLOGY,24(1),181.
MLA	Jiang, Yinzi,et al."Species delimitation of tea plants (Camellia sect. Thea) based on super-barcodes".BMC PLANT BIOLOGY 24.1(2024):181.

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