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Journal of Tea Science ›› 2013, Vol. 33 ›› Issue (5): 397-404.doi: 10.13305/j.cnki.jts.2013.05.011

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Genetic Variation of Catechins and Alkaloids in First Generation of Tea Plants

WANG Xue-min, MA Jian-qiang, JIN Ji-qiang, MA Chun-lei, YAO Ming-zhe, CHEN Liang*   

  1. Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Hangzhou 310008, China
  • Received:2013-03-12 Revised:2013-05-23 Online:2013-10-30 Published:2019-09-04

Abstract: The contents of catechins and alkaloids of 229 individuals in the combination of Camellia sinensis (L.) O. Kuntze ×C. sinensis var. pubilimba Chang were detected by using high performance liquid chromatographic (HPLC). The results showed that the biochemical diversity and variation were high in first generation of tea plants. The average diversity index and coefficient of variation were 2.02 and 27.51%, respectively. The catechin quality index ranged from 348.39~2β583.96, with average of 762.47. In principal component analysis, the first five principal components represented 86.94% of the biochemical diversity. Based on the biochemical data, 229 individuals of first generation and parents were clustered into two groups, 100 individuals in group one, 131 individuals in group two, and both parents were clustered in group two. It provided the reference for tea breeding identification and utilization in the future.

Key words: tea plant, first generation, biochemical composition, catechins, alkaloids

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