Special Issue "Breeding and Genetic Mechanism of Tea Plants"
Deadline for manuscript submissions: 31 December 2022 | Viewed by 1119
Interests: breeding; genetic mechanism; tea plant; abiotic stress
Interests: tea polyphenols; tea volatiles; flavonoid biosynthesis; tea processing; tea chemistry; bioactivities; tea health benefits
Special Issues, Collections and Topics in MDPI journals
Interests: breeding; gene cloning and expression; tea plant
At present, the breeding of new tea cultivars (e.g., albino cultivars, purple cultivars, and caffeine-free cultivars) is increasingly attractive and popular in the market. The changes of cultivars not only involve quality components such as flavonoids, amino acids, and caffeine, but also relate to plant appearance and responses to environmental factors. These changing phenotypes are closely associated with some significant genes, which are largely unknown. Exploring these genes and understanding their underlying mechanisms will improve tea cultivation management and breeding in the future. This Special Issue of Plants will highlight the exploration of new genes and their potential mechanisms, such as the changes of quality, stress response, fertility, leaf color and size. Papers related to tea propagation and new technologies in tea breeding are also welcome.
Prof. Dr. Kang Wei
Dr. Jianhui Ye
Prof. Dr. Liyuan Wang
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- genetic mechanism
- tea plant
- phenotypic changes
- secondary metabolites
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Caffeine transporters identified in tea plants (Camellia sinensis)
Authors: Yazhen Zhang
Affiliation: Tea Research Institute, Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Hangzhou 310008, China
Abstract: Caffeine is a characteristic secondary metabolite in tea plants. It confers the unique flavor and excitation effect of tea as a popular beverage. Currently, the caffeine biosynthetic pathway has been generally established, but the mechanism of caffeine transport in tea plants remains unclear. Here, we identified eight purine permeases (PUPs) members in tea plants. The expression patterns of these CsPUPs in different tissues suggested their broad roles in caffeine metabolism. CsPUP1, CsPUP3.1 and CsPUP10.1 were selected for further investigation. Correlation analysis in tea leaves of eight strains and six cultivars showed that these three CsPUPs were significantly negatively correlated with caffeine content. Subcellular localization revealed that CsPUP1, CsPUP3.1 and CsPUP10.1 were located in plasma membrane, and may also widely distributed as vesicles in cells. Functional complementation assays in yeast showed that these CsPUPs could partly or completely rescue the caffeine transport function in fcy2 mutant. Transgenic yeast of CsPUP10.1 exhibited the strongest capacity of caffeine transport. Consistent phenotype and caffeine transport function were identified in the CsPUP10.1-over-expression arabidopsis lines. Taken together, these results suggested that CsPUP1, CsPUP3.1 and CsPUP10.1 function as caffeine transporters in tea plants. CsPUP10.1 may facilitate the process of caffeine decomposition by delivering it to other subcellular fractions for further utilization in mature leaves.