文献类型： 外文期刊

作者： Liu, Kai ¹ ; Yang, An ¹ ; Yan, Jiadi ¹ ; Liang, Zhaolin ¹ ; Yuan, Gaopeng ⁴ ; Cong, Peihua ¹ ; Zhang, Liyi ¹ ; Han, Xiaolei ¹ ; Zhang, Caixia ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Apple Breeding, Res Inst Pomol, Xingcheng 125100, Peoples R China

2.Minist Agr & Rural Affairs Peoples Republ China, Key Lab Hort Crops Germplasm Resources Utilizat, Xingcheng 125100, Peoples R China

3.Shandong Acad Agr Sci, Shandong Acad Grape, Jinan 250100, Peoples R China

4.Chinese Acad Agr Sci, Zhengzhou Fruit Res Inst, Zhengzhou 450009, Peoples R China

期刊名称：HORTICULTURE RESEARCH （ 影响因子：8.7； 五年影响因子：9.0 ）

ISSN： 2662-6810

年卷期： 2023 年 10 卷 11 期

页码：

收录情况： SCI

摘要： Adventitious shoot (AS) regeneration is a significant factor in the genetic transformation of horticultural plants. It is also a noteworthy approach to their vegetative propagation. AS regeneration remains highly dependent on the genotype or maturity of explants. We here found that the AS regeneration abilities of apple leaves were positively correlated with MdAIL5 expression. MdAIL5 overexpression dramatically increased AS regeneration efficiency. Notably, MdAIL5 overexpression could restore the AS formation ability of explants to a certain extent, which was lost with an increase in maturity. Endogenous hormone detection revealed that MdAIL5 overexpression changed the contents of auxin, cytokinin (CK), and other hormones in apple leaves. Transcriptome analysis revealed that many genes related to auxin, CK, and brassinolide signaling pathways were significantly and differentially expressed between MdAIL5-overexpressing transgenic apple and wild-type apple plants. Yeast one-hybrid assays, the electrophoretic mobility shift assay, and the dual-luciferase reporter assay revealed that MdAIL5 directly binds to MdARF9 and MdHB14 promoters and positively affects their expression. We here established a model of MdAIL5 regulating AS formation, which acts as a theoretical basis for facilitating genotype- or explant maturity-independent AS regeneration in the future.