Genes involved in auxin biosynthesis, transport and signalling underlie the extreme adventitious root phenotype of the tomato aer mutant

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dc.contributor.authorKevei, Zoltan
dc.contributor.authorLarriba, Eduardo
dc.contributor.authorRomero‑Bosquet, María Dolores
dc.contributor.authorNicolás‑Albujer, Miriam
dc.contributor.authorKurowski, Tomasz J.
dc.contributor.authorMohareb, Fady
dc.contributor.authorRickett, Daniel
dc.contributor.authorPérez‑Pérez, José Manuel
dc.contributor.authorThompson, Andrew J.
dc.date.accessioned2024-03-19T13:44:14Z
dc.date.available2024-03-19T13:44:14Z
dc.date.issued2024-03-03
dc.description.abstractThe use of tomato rootstocks has helped to alleviate the soaring abiotic stresses provoked by the adverse effects of climate change. Lateral and adventitious roots can improve topsoil exploration and nutrient uptake, shoot biomass and resulting overall yield. It is essential to understand the genetic basis of root structure development and how lateral and adventitious roots are produced. Existing mutant lines with specific root phenotypes are an excellent resource to analyse and comprehend the molecular basis of root developmental traits. The tomato aerial roots (aer) mutant exhibits an extreme adventitious rooting phenotype on the primary stem. It is known that this phenotype is associated with restricted polar auxin transport from the juvenile to the more mature stem, but prior to this study, the genetic loci responsible for the aer phenotype were unknown. We used genomic approaches to define the polygenic nature of the aer phenotype and provide evidence that increased expression of specific auxin biosynthesis, transport and signalling genes in different loci causes the initiation of adventitious root primordia in tomato stems. Our results allow the selection of different levels of adventitious rooting using molecular markers, potentially contributing to rootstock breeding strategies in grafted vegetable crops, especially in tomato. In crops vegetatively propagated as cuttings, such as fruit trees and cane fruits, orthologous genes may be useful for the selection of cultivars more amenable to propagation.en_UK
dc.description.sponsorshipThe research was supported by BBSRC—UKRI funding; the RootLINK (BB/L01954X/1) and AdRoot (BB/S007970/1) projects.en_UK
dc.identifier.citationKevei Z, Larriba E, Romero-Bosquet MD, et al., (2024) Genes involved in auxin biosynthesis, transport and signalling underlie the extreme adventitious root phenotype of the tomato aer mutant. Theoretical and Applied Genetics, Volume 137, Issue 4, March 2024, Article Number 76en_UK
dc.identifier.eissn1432-2242
dc.identifier.issn0040-5752
dc.identifier.urihttps://doi.org/10.1007/s00122-024-04570-8
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21039
dc.language.isoen_UKen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleGenes involved in auxin biosynthesis, transport and signalling underlie the extreme adventitious root phenotype of the tomato aer mutanten_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-01-30

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