Transfer of tomato immune receptor Ve1 confers Ave1-dependent Verticillium resistance in tobacco and cotton

Y. Song, Yidong Wang, Linlin Liu, D.J. Valkenburg, Xianlong Zhang, Longfu Zhu, B.P.H.J. Thomma

Research output: Chapter in Book/Report/Conference proceedingAbstract

Abstract

Verticillium wilts caused by soil-borne fungal species of the Verticillium genus are economically important plant diseases that affect a wide range of host plants, and are notoriously difficult to combat. Perception of pathogen (-induced) ligands by plant immune receptors is a key component of plant innate immunity. Race-specific resistance to Verticillium wilt in tomato is governed by the tomato cell surface-localized immune receptor Ve1 through recognition of the effector protein Ave1 that is secreted by race 1 strains of Verticillium. It has been previously demonstrated that transgenic expression of tomato Ve1 in the cruciferous model plant Arabidopsis thaliana results in Verticillium wilt resistance. Here, we investigated whether tomato Ve1 can confer Verticillium resistance when stably expressed in the crop species tobacco (Nicotiana tabcum) and cotton (Gossypium hirsutum). We show that transgenic tobacco and cotton plants constitutively expressing tomato Ve1 exhibit enhanced resistance against Verticillium wilt in an Ave1-dependent manner. Thus, we demonstrate that the functionality of tomato Ve1 in Verticillum resistance through recognition of the Verticillium effector Ave1 is retained after transfer to tobacco and cotton, implying that the Ve1-mediated immune signalling pathway is evolutionary conserved across these plant species. Moreover, our results suggest that transfer of tomato Ve1 across sexually incompatible plant species can be exploited in breeding programmes to engineer Verticillium wilt resistance in crops.
Original languageEnglish
Title of host publicationAbstract Book 5th International Conference on Biotic Plant Interaction, Xiamen, China 17-21 August 2017
Pages401-401
Publication statusPublished - 2017

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