Genome-Wide Identification and Expression Patterns of AcSWEET Family in Pineapple and AcSWEET11 Mediated Sugar Accumulation

文献类型： 外文期刊

第一作者： Lin, Wenqiu

作者： Lin, Wenqiu;Pu, Yue;Liu, Shenghui;Wu, Qingsong;Yao, Yanli;Yang, Yumei;Zhang, Xiumei;Sun, Weisheng;Lin, Wenqiu;Liu, Shenghui;Wu, Qingsong;Yao, Yanli;Yang, Yumei;Zhang, Xiumei;Sun, Weisheng;Lin, Wenqiu;Liu, Shenghui;Wu, Qingsong;Yao, Yanli;Yang, Yumei;Zhang, Xiumei;Sun, Weisheng;Pu, Yue

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关键词： sugars will eventually be exported transporters (SWEETs); expression patterns; AcSWEET11; sugar accumulation; pineapple

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）

ISSN：

年卷期： 2022 年 23 卷 22 期

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收录情况： SCI

摘要： Pineapple (Ananas comosus L.) is an important fruit crop in tropical regions, and it requires efficient sugar allocation during fruit development. Sugars Will Eventually be Exported Transporters (SWEETs) are a group of novel sugar transporters which play critical roles in seed and fruit development. However, the function of AcSWEETs remains unknown in the sugar accumulation. Herein, 17 AcSWEETs were isolated and unevenly located in 11 chromosomes. Analysis of a phylogenetic tree indicated that 17 genes were classified into four clades, and the majority of AcSWEETs in each clade shared similar conserved motifs and gene structures. Tissue-specific gene expression showed that expression profiles of AcSWEETs displayed differences in different tissues and five AcSWEETs were strongly expressed during fruit development. AcSWEET11 was highly expressed in the stage of mature fruits in 'Tainong16' and 'Comte de paris', which indicates that AcSWEET11 was important to fruit development. Subcellular localization analysis showed that AcSWEET11 was located in the cell membrane. Notably, overexpression of AcSWEET11 could improve sugar accumulation in pineapple callus and transgenic tomato, which suggests that AcSWEET11 might positively contribute to sugar accumulation in pineapple fruit development. These results may provide insights to enhance sugar accumulation in fruit, thus improving pineapple quality in the future.

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