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

doi:10.13305/j.cnki.jts.2013.05.011

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

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^*

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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

alkaloids / biochemical composition / catechins / first generation / tea plant

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WANG Xue-min, MA Jian-qiang, JIN Ji-qiang, MA Chun-lei, YAO Ming-zhe, CHEN Liang. Genetic Variation of Catechins and Alkaloids in First Generation of Tea Plants[J]. Journal of Tea Science. 2013, 33(5): 397-404 https://doi.org/10.13305/j.cnki.jts.2013.05.011

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