Genome-Wide Identification of the SQUAMOSA Promoter-Binding Protein-like (SPL) Transcription Factor Family in Sweet Cherry Fruit.
Genome-Wide Identification of the SQUAMOSA Promoter-Binding Protein-like (SPL) Transcription Factor Family in Sweet Cherry Fruit.
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DOI：
10.3390/ijms24032880
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发表时间：
2023-02-02
影响因子：
5.6
通讯作者：
Li, Tianhong
中科院分区：
文献类型：
--
作者：
Sun, Yueting;Wang, Yanyan;Xiao, Yuqin;Zhang, Xiang;Du, Bingyang;Turupu, Maihemuti;Wang, Chao;Yao, Qisheng;Gai, Shilin;Huang, Jing;Tong, Shi;Li, Tianhong
植物特有的SQUAMOSA启动子结合蛋白类（SPL）转录因子在植物生长发育、果实成熟、花序分枝以及生物和非生物胁迫等过程中发挥着重要的调控作用。然而，在甜樱桃中，SPL基因家族还没有鉴定或系统的研究。本研究在甜樱桃参考基因组中鉴定出12个SPL基因，分布于6条染色体上，根据与其他SPL基因家族的系统发育关系将其分为6个类群。9个PavSPLs基因在绿色果期高表达，在果实成熟初期表达量显著下降，表明它们是果实发育和成熟的重要调控因子。阿坝、GA和MeJA处理下PavSPL基因的表达模式表明，PavSPL基因参与了果实的成熟过程。亚细胞定位实验证明PavSPL4和PavSPL7蛋白定位于细胞核。SPL基因家族的全基因组鉴定提供了新的见解，同时为甜樱桃研究奠定了重要基础。
Plant-specific SQUAMOSA promoter-binding protein-like (SPL) transcription factors play important regulatory roles during plant growth and development, fruit ripening, inflorescence branching, and biotic and abiotic stresses. However, there have been no identification or systematic studies of the SPL gene family in the sweet cherry. In this study, 12 SPL genes were identified in the sweet cherry reference genome, which were distributed over 6 chromosomes and classified into six groups according to phylogenetic relationships with other SPL gene families. Nine PavSPLs were highly expressed at green fruit stages and dramatically decreased at the onset of fruit ripening, which implied that they were important regulators during fruit development and ripening. The expression patterns of PavSPL genes under ABA, GA, and MeJA treatments showed that the PavSPLs were involved in the process of fruit ripening. A subcellular localization experiment proved that PavSPL4 and PavSPL7 proteins were localized in the nucleus. The genome-wide identification of the SPL gene family provided new insights while establishing an important foundation for sweet cherry studies.
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