Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/137432
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Type: | Journal article |
Title: | The Strigolactone Pathway Is a Target for Modifying Crop Shoot Architecture and Yield |
Author: | Kelly, J.H. Tucker, M.R. Brewer, P.B. |
Citation: | Biology, 2023; 12(1):1-14 |
Publisher: | MDPI AG |
Issue Date: | 2023 |
ISSN: | 2079-7737 2079-7737 |
Statement of Responsibility: | Jack H. Kelly, Matthew R. Tucker, and Philip B. Brewer |
Abstract: | Due to their sessile nature, plants have developed the ability to adapt their architecture in response to their environment. Branching is an integral component of plant architecture, where hormonal signals tightly regulate bud outgrowth. Strigolactones (SLs), being a novel class of phytohormone, are known to play a key role in branching decisions, where they act as a negative regulator of bud outgrowth. They can achieve this by modulating polar auxin transport to interrupt auxin canalisation, and independently of auxin by acting directly within buds by promoting the key branching inhibitor TEOSINTE BRANCHED1. Buds will grow out in optimal conditions; however, when conditions are sub-optimal, SL levels increase to restrict branching. This can be a problem in agricultural applications, as reductions in branching can have deleterious effects on crop yield. Variations in promoter elements of key SL-related genes, such as IDEAL PLANT ARCHITECTURE1, have been identified to promote a phenotype with enhanced yield performance. In this review we highlight how this knowledge can be applied using new technologies to develop new genetic variants for improving crop shoot architecture and yield. |
Keywords: | shoot branching; bud outgrowth; plant architecture; strigolactone; auxin; BRANCHED1; crop tillering; crop yield |
Rights: | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). |
DOI: | 10.3390/biology12010095 |
Grant ID: | http://purl.org/au-research/grants/arc/FT180100081 http://purl.org/au-research/grants/arc/CE200100015 http://purl.org/au-research/grants/arc/IC210100047 http://purl.org/au-research/grants/arc/CE230100015 |
Published version: | http://dx.doi.org/10.3390/biology12010095 |
Appears in Collections: | Agriculture, Food and Wine publications |
Files in This Item:
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hdl_137432.pdf | Published version | 1.17 MB | Adobe PDF | View/Open |
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