Plant Development in the Garden Pea as Revealed by Mutations in the Crd/PsYUC1 Gene

Ariane Gélinas-Marion; Morgane P Eléouët; Sam D Cook; Jacqueline K Vander Schoor; Steven A G Abel; David S Nichols; Jason A Smith; Julie M I Hofer; John J Ross

doi:10.3390/genes14122115

Plant Development in the Garden Pea as Revealed by Mutations in the Crd/PsYUC1 Gene

Genes (Basel). 2023 Nov 23;14(12):2115. doi: 10.3390/genes14122115.

Authors

Ariane Gélinas-Marion¹, Morgane P Eléouët², Sam D Cook³, Jacqueline K Vander Schoor¹, Steven A G Abel¹, David S Nichols⁴, Jason A Smith¹, Julie M I Hofer², John J Ross¹

Affiliations

¹ School of Natural Sciences, University of Tasmania, Sandy Bay, Hobart 7001, Australia.
² Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Plas Gogerddan, Aberystwyth SY23 3EE, UK.
³ Department of Chemistry, Umea University, Linnaeus vag 10, Kemi A3, 901 87 Umea, Sweden.
⁴ Central Science Laboratory, University of Tasmania, Sandy Bay, Hobart 7001, Australia.

Abstract

In common with other plant species, the garden pea (Pisum sativum) produces the auxin indole-3-acetic acid (IAA) from tryptophan via a single intermediate, indole-3-pyruvic acid (IPyA). IPyA is converted to IAA by PsYUC1, also known as Crispoid (Crd). Here, we extend our understanding of the developmental processes affected by the Crd gene by examining the phenotypic effects of crd gene mutations on leaves, flowers, and roots. We show that in pea, Crd/PsYUC1 is important for the initiation and identity of leaflets and tendrils, stamens, and lateral roots. We also report on aspects of auxin deactivation in pea.

Keywords: Crispoid; YUCCA; auxin; auxin inactivation; compound leaves; organ initiation; pea; plant development.

MeSH terms

Indoleacetic Acids*
Mutation
Pisum sativum* / genetics
Plant Development

Substances

Indoleacetic Acids

Grants and funding

DP130103357/Australian Research Council