Dissecting Carotenoid Metabolism Among Chinese Tea Genotypes froma Genetic Perspective

Xu Wei; Hao Hu

doi:10.12972/kjhst.20180015

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2018 Vol.36, Issue 1 Preview Page

Dissecting Carotenoid Metabolism Among Chinese Tea Genotypes froma Genetic Perspective

28 February 2018. pp. 140-150

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Abstract

Carotenoids are an important quality parameter of tea. The degradation of carotenoids during processing produces many of the flavor volatiles related to tea quality. To understand the origin of the diversity of carotenoid profiles, 31 elite tea cultivars [Camellia sinensis (L.) O. Kuntze] from three geographical regions in China were studied using HPLC. Seven carotenoids were identified, of which lutein and β-carotene were predominant. Statistical analysis showed that there was no significant difference in carotenoid contents among plants originated from the three producing regions. Principal component analysis of carotenoid contents showed that the hybridization of Yunnandaye/Fudingdabai did not create offspring that were distinguishable from their parents. However, single lines selected from different origins were distinguishable from Yunnandaye/ Fudingdabai based on carotenoid contents. Association analysis revealed a strong influence of genotype on carotenoid compositions, and the relationship between the carotenoid profiles and the expression of carotenoid biosynthetic genes is discussed. These results also showed that the 31 elite Chinese tea cultivars offer potential as a new source of carotenoids.

Keywords

camellia sinensis

carotenoid profiles

geographical origins

HPLC analysis metabolic regulation

tea quality

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Information

Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
Publisher(Ko) :한국원예학회
Journal Title :Horticultural Science and Technology
Journal Title(Ko) :원예과학기술지
Volume : 36
No :1
Pages :140-150
Received Date : 2017-07-05
Revised Date : 2017-10-17
Accepted Date : 2017-10-17
DOI :https://doi.org/10.12972/kjhst.20180015

Horticultural Science and Technology 원예과학기술지 ISSN:1226-8763(Print) 2465-8588(Online)

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