Genetic Breeding and Quality Improvement of Tea

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 902

Special Issue Editor


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Guest Editor
Tea Research Institute Chinese Academy of Agricultural Sciences (TRICAAS), Hangzhou 310008, China
Interests: screening and utilization of elite tea germplasms; genetic identification for tea quality; breeding of tea plants (Camellia sinensis)

Special Issue Information

Dear Colleagues,

With the recent publication of the high-quality tea reference sequences and re-sequencing data from different tea accessions, advances in tea plant research have been achieved, from secondary metabolism to genetic mechanism exploration and from nutrient absorption to novel genes relating to quality changes, all of which have increased our understanding of the genetics and breeding of tea significantly. Among them, phenotypic changes including flavonoids, amino acids, caffeine, appearance or responses to environmental factors in special tea varieties attract the attention of both consumers and scientists. These changing phenotypes are closely associated with certain key genes, which are largely unknown. Exploring these genes and understanding their underlying mechanisms will improve tea breeding in the future.

This Special Issue of Plants will highlight the exploration of new genes and their potential molecular mechanisms, such as changes in tea quality, fertility and agronomy traits, as well as stress responses. Research papers related to tea propagation and new technologies in tea breeding, as well as review papers, are welcome.

Yours faithfully,

Dr. Liyuan Wang
Guest Editor

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Keywords

  • tea plant (Camellia sinensis)
  • molecular mechanism
  • secondary metabolites
  • stress response
  • nitrogen absorption
  • quality-related components
  • genetic identification
  • QTL mapping
  • molecular functional markers

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Published Papers (1 paper)

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Research

17 pages, 5648 KiB  
Article
Revealing the Molecular Regulatory Mechanism of Flavonoid Accumulation in Tender Leaves of Tea Plants by Transcriptomic and Metabolomic Analyses
by Ruiyang Shan, Yongheng Zhang, Xiaomei You, Xiangrui Kong, Yazhen Zhang, Xinlei Li, Lu Wang, Xinchao Wang and Changsong Chen
Plants 2025, 14(4), 625; https://doi.org/10.3390/plants14040625 - 19 Feb 2025
Viewed by 634
Abstract
Flavonoids are secondary metabolites that are beneficial to life activities and are mainly concentrated in buds and leaves in the form of glycosides. Flavonoid glycosides have important effects on the properties and quality of tea plants. Research has shown that the abundance of [...] Read more.
Flavonoids are secondary metabolites that are beneficial to life activities and are mainly concentrated in buds and leaves in the form of glycosides. Flavonoid glycosides have important effects on the properties and quality of tea plants. Research has shown that the abundance of flavonoid glycosides varies greatly among different cultivars, but research on the regulatory mechanisms that cause their differential accumulation among tea plant cultivars with different leaf colors is lacking. In this study, an integrated analysis of metabolomics and transcriptomics was conducted to determine the regulatory networks regulating astringency and color-related flavonoids in tea plant cultivars with diverse leaf colors. A total of five anthocyanidins, four catechins, and nine flavonol glycosides were found to partially contribute to the differences in taste and leaf color among tea plant cultivars with diverse leaf colors. Furthermore, 15 MYB genes and 5 Dof genes were identified as potential regulators controlling the expression of eight key structural genes, resulting in differences in the accumulation of specific compounds, including epicatechin (EC), catechin (C), cyanidin, cyanidin 3-O-glucoside, pelargonidin 3-O-glucoside, and quercetin 3-O-glucoside, in tea plant cultivars with diverse leaf colors. These findings provide insights into the development and utilization of resources from tea plants with diverse leaf colors. Full article
(This article belongs to the Special Issue Genetic Breeding and Quality Improvement of Tea)
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