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MicroRNA156‐SPL13B Module Induces Parthenocarpy Through the Gibberellin Pathway

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Publicado en:Plant Biotechnology Journal vol. 23, no. 12 (Dec 1, 2025), p. 5536-5550
Autor principal: Wang, Da‐Ru
Otros Autores: Zhang, Chun‐Ling, Wang, Xun, Liu, Dan‐Dan, Liu, Xin, Chen, Guo‐Lin, Wang, Qing, Qu, Man‐Shu, Yang, Kuo, You, Chun‐Xiang, Wang, Xiao‐Fei
Publicado:
John Wiley & Sons, Inc.
Materias:
Acids
Phylogenetics
Flowers & plants
Binding
Fruits
miRNA
Histones
Gibberellic acid
Gibberellins
Seeds
MicroRNAs
Environmental conditions
Fertilization
Fertility
Modules
Genes
Pollination
Proteins
Plant reproduction
Environmental
Acceso en línea:Citation/Abstract
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Resumen:ABSTRACT Fruit development typically follows pollination and fertilisation. However, parthenocarpy, the formation of seedless fruits, represents an alternative pathway. The fruit that grows from the ovary under unpollinated and/or unfertilised conditions is termed parthenocarpic. This trait is not only desirable to consumers but also contributes to yield stability under adverse environmental conditions. In this study, we demonstrate that overexpression of miR156h regulates parthenocarpy under unpollinated conditions via a gibberellic acid (GA)‐dependent pathway. MdSPL13B was found to be involved in MdmiR156h‐modulated GA accumulation and parthenocarpy through directly binding to the promoters of MdKO, MdKAO2 and MdGA20ox. Furthermore, MdSPL13B was able to indirectly promote GA deactivation by binding to the promoter of MdMSI1, which mediates the histone modification of MdGA2ox8 and MdSPY. This study provides novel insight into the miR156‐SPL‐GA regulatory module in parthenocarpy.
ISSN:1467-7644
1467-7652
DOI:10.1111/pbi.70324
Fuente:Engineering Database