Plant Cell Reports

, Volume 37, Issue 3, pp 425–441 | Cite as

Differential expression of gibberellin- and abscisic acid-related genes implies their roles in the bud activity-dormancy transition of tea plants

  • Chuan Yue
  • Hongli Cao
  • Xinyuan Hao
  • Jianming Zeng
  • Wenjun Qian
  • Yuqiong Guo
  • Naixing Ye
  • Yajun Yang
  • Xinchao Wang
Original Article


Key message

Thirty genes involved in GA and ABA metabolism and signalling were identified, and the expression profiles indicated that they play crucial roles in the bud activity-dormancy transition in tea plants.


Gibberellin (GA) and abscisic acid (ABA) are fundamental phytohormones that extensively regulate plant growth and development, especially bud dormancy and sprouting transition in perennial plants. However, there is little information on GA- and ABA-related genes and their expression profiles during the activity-dormancy transition in tea plants. In the present study, 30 genes involved in the metabolism and signalling pathways of GA and ABA were first identified, and their expression patterns in different tissues were assessed. Further evaluation of the expression patterns of selected genes in response to GA3 and ABA application showed that CsGA3ox, CsGA20ox, CsGA2ox, CsZEP and CsNCED transcripts were differentially expressed after exogenous treatment. The expression profiles of the studied genes during winter dormancy and spring sprouting were investigated, and somewhat diverse expression patterns were found for GA- and ABA-related genes. This diversity was associated with the bud activity-dormancy cycle of tea plants. These results indicate that the genes involved in the metabolism and signalling of GA and ABA are important for regulating the bud activity-dormancy transition in tea plants.


Abscisic acid (ABA) Bud dormancy Gene expression Gibberellins (GA) Tea plant 



This work was supported by the National Natural Science Foundation of China (31370690, 31600555), the Natural Science Foundation of Fujian Province (2017J01616), and the Earmarked Fund for China Agriculture Research System (CARS-19), and the Chinese Academy of Agricultural Sciences through an Innovation Project for Agricultural Sciences and Technology (CAAS-ASTIP-2017-TRICAAS).

Supplementary material

299_2017_2238_MOESM1_ESM.docx (1.6 mb)
Fig. A1 Daily temperatures at the sampling sites and morphological changes in lateral buds on the sampling dates. The average, maximum (Max) and minimum (Min) temperatures from 1 Oct. to 31 Mar. of 2013-14 (a) and 2014–15 (b) were recorded. In 2013–14, buds were collected on 2 Nov. 2013, 1 Dec. 2013, 2 Jan. 2014, 14 Feb. 2014, 3 Mar. 2014 and 27 Mar. 2014; in 2014–15, samples were collected on 4 Nov. 2014, 2 Dec. 2014, 5 Jan. 2015, 5 Feb. 2015, 3 Mar. 2015 and 26 Mar. 2015. The time points at which the samples were taken are indicated by arrows, and the morphological changes in the lateral buds on the sampling dates are shown. Fig. A2 Neighbour-joining phylogeny of tea plant genes encoding proteins involved in GA metabolism and signalling pathways and those of other plants. a, ent-kaurene synthase (KS); b, ent-kaurene oxidase (KO); c, ent-kaurene acid oxidase; d, gibberellin 20 oxidase (GA20ox); e, gibberellin 3-oxidase (GA3ox); f, gibberellin 2-oxidase (GA2ox); g, gibberellin receptor (GID1s); h, DELLA proteins (DELLAs). Fig. A3 Neighbour-joining phylogeny of tea plant genes encoding proteins involved in ABA metabolism and signalling pathways and those of other plants. a, zeaxanthin epoxidase (ZEP); b, 9-cis-epoxycarotenoid dioxygenase (NCED); c, short-chain dehydrogenase/reductase (SDR); d, abscisic aldehyde oxidase (AAO); e, ABA 8′-hydroxylase (CYP707A); f, pyrabactin resistance-like proteins (PYLs); g, protein phosphatase 2Cs (PP2Cs). Table A1 Primers used in qRT-PCR analysis (DOCX 1628 KB)


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Authors and Affiliations

  1. 1.College of Horticulture, Key Laboratory of Tea Science in Universities of Fujian ProvinceFujian Agriculture and Forestry UniversityFuzhouChina
  2. 2.Tea Research Institute of the Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Key Laboratory of Tea Biology and Resources UtilizationMinistry of AgricultureHangzhouChina

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