Molecular characterization and expression analysis of theSQUAMOSA PROMOTER BINDING PROTEIN-LIKEgene family inPaeonia suffruticosa

文献类型： 外文期刊

第一作者： Wang, Shunli

作者： Wang, Shunli;Ren, Xiuxia;Xue, Jingqi;Xue, Yuqian;Cheng, Xiaodan;Zhang, Xiuxin;Wang, Shunli;Ren, Xiuxia;Xue, Jingqi;Xue, Yuqian;Cheng, Xiaodan;Zhang, Xiuxin;Hou, Xiaogai

作者机构：

关键词： Tree peony; SPLgene family; MiR156; Juvenile-to-adult phase transition; Flowering time; Grain size

期刊名称：PLANT CELL REPORTS （ 影响因子：4.57； 五年影响因子：4.463 ）

ISSN： 0721-7714

年卷期： 2020 年 39 卷 11 期

页码：

收录情况： SCI

摘要： Key message A total of 16PsSPLgenes were identified in tree peony.PsSPLspotentially regulated flowering time, lateral bud and seed development, and the juvenile-to-adult phase transition. SQUAMOSA PROMOTER BINDING PROTEIN-LIKE(SPL) transcription factors are important for plant growth and development. Here, we report the identification of 16 full-lengthPsSPLsin tree peony (Peaonia suffruticosaAndr.) and 9PsSPLsthat have miR156 target sites. Phylogenetic analysis of the relationship of SPLs inP. suffruticosaandArabidopsissuggested that they can be classified into six groups, andPsSPLswere highly correlated withArabidopsisSPLs counterparts in the same group.Cis-element of promoter region analysis suggested thatPsSPLgenes play roles in physiological processes and developmental events. Expression analysis indicated that mostPsSPLgenes exhibited high expression levels in the tissues and organs examined here. The increasing expression levels ofPsSPL1,PsSPL2,PsSPL8,PsSPL9,PsSPL12,andPsSPL16, and decreasing expression levels ofPsSPL1AandPsSPL1Bin buds over time suggested that they were probably regulated by the juvenile-to-adult phase transition. In addition, the expression profiles ofPsSPLgenes in different developmental buds and seeds suggested thatPsSPL2,PsSPL3,PsSPL9,PsSPL10,PsSPL13, andPsSPL13Awere important genes for regulating the flowering time of the tree peony;PsSPL2andPsSPL8might play a role in suppressing lateral bud development, andPsSPL2,PsSPL13, andPsSPL14positively controlled grain size and number, and pod branching. These results provide a foundation for future functional analysis ofPsSPLgenes in tree peony growth and development.

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