Articles
The miR156/RhSPLs module regulates the outgrowth of rose axillary bud by governing ABA biosynthesis
Article number
1461_4
Pages
25 – 30
Language
English
Abstract
Plant architecture, a critical agronomic trait in cut roses, is significantly influenced by axillary bud (Ab) outgrowth.
However, the underlying mechanism largely remains elusive.
Here, we identified an important role of miR156, which positively promoted Ab outgrowth.
We found that miR156 overexpression (miR156-OE) significantly promotes bud outgrowth and branching, whereas knockdown of miR156 inhibited it.
Moreover, we identified RhSPL13A as a target of miR156 in the axillary buds.
Further analysis demonstrated that the miR156-RhSPL13A module modulates abscisic acid (ABA) biosynthesis.
Overall, our study highlights that the miR156-RhSPL13A module regulates axillary bud outgrowth and branching in roses by modulating ABA biosynthesis, providing new insights into the molecular mechanisms governing plant architecture.
However, the underlying mechanism largely remains elusive.
Here, we identified an important role of miR156, which positively promoted Ab outgrowth.
We found that miR156 overexpression (miR156-OE) significantly promotes bud outgrowth and branching, whereas knockdown of miR156 inhibited it.
Moreover, we identified RhSPL13A as a target of miR156 in the axillary buds.
Further analysis demonstrated that the miR156-RhSPL13A module modulates abscisic acid (ABA) biosynthesis.
Overall, our study highlights that the miR156-RhSPL13A module regulates axillary bud outgrowth and branching in roses by modulating ABA biosynthesis, providing new insights into the molecular mechanisms governing plant architecture.
Authors
W.K. Jing, G.Q. Liu, Z.W. Huang, F.F. Gong, Y. Yuan, H. Zhang, X.M. Sun, J.P. Gao, X.F. Zhou, N. Ma
Keywords
MIR156, RhSPL13A, ABA, axillary bud, plant architecture
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