贵州大厂茶珍稀濒危种质资源研究及保护进展

doi:10.3981/j.issn.1000-7857.2023.04.007

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Abstract: Endangered plants are an important part of the biosphere, a precious resource of the country, and an extremely important material for scientific research. In this paper, C. tachangensis, an endangered resource, was studied and its protection status was analyzed. The results showed that C. tachangensis in Guizhou was mainly distributed in 12 counties, and its morphological characteristics were significantly different from those of cultivated tea plants. The content of soluble pectin in C. tachangensis was higher than that of cultivars, and the content of catechin component was also different from that of cultivars, indicating that C. tachangensis germplasm has the potential of new variety breeding. The ECG content of C. tachangensis was significantly positively correlated with DFR gene, and five transcription factors of DFR gene were excavated. The AtMPK4 gene of 8 insect resistance factors associated SNPs and 6 negative regulators of systemic acquired resistance (SAR) in C. tachangensis were detected. These results suggested that C. tachangensis has great protection value and development potential.

Key words： Guizhou Camellia tachangensis rare and endangered germplasms

Received: 11 July 2022

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	BAI Dingchen
	HE Limin
	LI Caiyun
	NIU Suzhen

Cite this article:

BAI Dingchen,HE Limin,LI Caiyun, et al. Research and conservation status of the rare and endangered germplasm of Camellia tachangensis in Guizhou[J]. Science & Technology Review, 2023, 41(4): 58-64.

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http://www.kjdb.org/EN/10.3981/j.issn.1000-7857.2023.04.007 OR http://www.kjdb.org/EN/Y2023/V41/I4/58

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