Integrative analyses of transcriptome and carotenoids profiling revealed molecular insight into variations in fruits color of Citrus Reticulata Blanco induced by transplantation

文献类型： 外文期刊

第一作者： Huang, Qichun

作者： Huang, Qichun;Hu, Chengxiao;Huang, Qichun;Wang, Nina;Zhang, Lan;Mo, Xiaofang;Li, Guoguo;Liao, Huihong;Huang, Hongming;Chen, Dongkui;Liu, Jimin;Liu, Jimin;Ji, Sufeng

作者机构：

关键词： Citrus Reticulata Blanco; Transplantation; Fruits coloring; Transcriptome; Carotenoids metabolism, beta-citraurin

期刊名称：GENOMICS （ 影响因子：4.31； 五年影响因子：4.38 ）

ISSN： 0888-7543

年卷期： 2022 年 114 卷 2 期

页码：

收录情况： SCI

摘要： Citrus fruits exhibit vivid color and are favored extensively. However, the biochemical and molecular mechanism of Citrus Reticulata Blanco fruits coloring, especially the effect of transplantation on fruits coloring, is unclear. Herein, RNA-Seq and carotenoids profiling were applied to investigate the effect of transplantation on Orah mandarin fruits coloring. Transplantation induces fruit color shallowing, Ca2+ and ACC level declining and IAA level increasing. Transplantation induced variation in fruit skin and pulp carotenoids, mainly beta-citraurin as one of the important pigments of citrus peel. 2253 up-regulated genes, 1103 down-regulated genes in skin and 815 up-regulated genes, 534 down-regulated genes in pulp of transplanted tree fruits were identified by RNA-Seq. The DEGs involved hormone signal, carotenoids biosynthesis and TFs such as MYB and bHLH family TFs. The carotenoid cleavage dioxygenase gene (Ciclev10028113m.g) is positively correlated with beta-citraurin and regulated directly and/or indirectly by MYB1R1, PIF4, ACC and IAA. Integrative analyses revealed potential molecular insights into Orah mandarin peel color variation during transplantation.

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