Genome-wide identification of SULTR genes in tea plant and analysis of their expression in response to sulfur and selenium

文献类型： 外文期刊

第一作者： Zhang, Haojie

作者： Zhang, Haojie;Hao, Xinyuan;Zhang, Jingjing;Wang, Lu;Wang, Yuchun;Li, Nana;Guo, Lina;Ren, Hengze;Zeng, Jianming;Zhang, Haojie

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关键词： Camellia sinensis; Sulfate transporter; Gene cloning; Subcellular localization; Selenium; Expression analysis

期刊名称：PROTOPLASMA （ 影响因子：2.751； 五年影响因子：2.772 ）

ISSN： 0033-183X

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收录情况： SCI

摘要： Sulfur (S) is an essential macronutrient required by plants. Plants absorb and transport S through sulfate transporters (SULTRs). In this study, we cloned 8 SULTR genes (CsSULTR1;1/1;2/2;1/3;1/3;2/3;3/3;5/4;1) from tea plant (Camellia sinensis), all of which contain a typical sulfate transporter and antisigma factor antagonist (STAS) conserved domain. Phylogenetic tree analysis further divided the CsSULTRs into four main groups. Many cis-acting elements related to hormones and environmental stresses were found within the promoter sequence of CsSULTRs. Subcellular localization results showed that CsSULTR4;1 localized in the vacuolar membrane and that other CsSULTRs localized to the cellular membrane. The tissue-specific expression of the 8 CsSULTR genes showed different expression patterns during the active growing period and dormancy period. In particular, the expression of CsSULTR1;1 was highest in the roots, but that of CsSULTR1;2 was lowest in the dormancy period. The expression of CsSULTR1;1/1;2/2;1/3;2 was stimulated under different concentrations of selenium (Se) and S; moreover, CsSULTR1;2/2;1/3;3/3;5 was upregulated in response to different valences of Se.

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