The Role of FveAFB5 in Auxin-Mediated Responses and Growth in Strawberries

Xuhui Wang; Shuo Feng; Jiangshan Luo; Shikui Song; Juncheng Lin; Yunhe Tian; Tongda Xu; Jun Ma

doi:10.3390/plants13081142

Plants (Apr 2024)

The Role of FveAFB5 in Auxin-Mediated Responses and Growth in Strawberries

Xuhui Wang,
Shuo Feng,
Jiangshan Luo,
Shikui Song,
Juncheng Lin,
Yunhe Tian,
Tongda Xu,
Jun Ma

Affiliations

Xuhui Wang: College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Shuo Feng: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Jiangshan Luo: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Shikui Song: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Juncheng Lin: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Yunhe Tian: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Tongda Xu: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Jun Ma: Plant Synthetic Biology Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China

DOI: https://doi.org/10.3390/plants13081142
Journal volume & issue: Vol. 13, no. 8
p. 1142

Abstract

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Auxin is a crucial hormone that regulates various aspects of plant growth and development. It exerts its effects through multiple signaling pathways, including the TIR1/AFB-based transcriptional regulation in the nucleus. However, the specific role of auxin receptors in determining developmental features in the strawberry (Fragaria vesca) remains unclear. Our research has identified FveAFB5, a potential auxin receptor, as a key player in the development and auxin responses of woodland strawberry diploid variety Hawaii 4. FveAFB5 positively influences lateral root development, plant height, and fruit development, while negatively regulating shoot branching. Moreover, the mutation of FveAFB5 confers strong resistance to the auxinic herbicide picloram, compared to dicamba and quinclorac. Transcriptome analysis suggests that FveAFB5 may initiate auxin and abscisic acid signaling to inhibit growth in response to picloram. Therefore, FveAFB5 likely acts as an auxin receptor involved in regulating multiple processes related to strawberry growth and development.

Published in Plants

ISSN: 2223-7747 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Botany
Website: http://www.mdpi.com/journal/plants

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