Skip to main content

Research Repository

Advanced Search

Identification of Fusarium Head Blight Resistance in Triticum timopheevii Accessions and Characterization of Wheat-T. timopheevii Introgression Lines for Enhanced Resistance

Steed, Andrew; King, Julie; Grewal, Surbhi; Yang, Cai Yun; Clarke, Martha; Devi, Urmila; King, Ian P.; Nicholson, Paul

Identification of Fusarium Head Blight Resistance in Triticum timopheevii Accessions and Characterization of Wheat-T. timopheevii Introgression Lines for Enhanced Resistance Thumbnail


Authors

Andrew Steed

Cai Yun Yang

Martha Clarke

Urmila Devi

Ian P. King

Paul Nicholson



Abstract

A diverse panel of wheat wild relative species was screened for resistance to Fusarium head blight (FHB) by spray inoculation. The great majority of species and accessions were susceptible or highly susceptible to FHB. Accessions of Triticum timopheevii (P95-99.1-1), Agropyron desertorum (9439957), and Elymus vaillantianus (531552) were highly resistant to FHB while additional accessions of T. timopheevii were found to be susceptible to FHB. A combination of spray and point inoculation assessments over two consecutive seasons indicated that the resistance in accession P95-99.1-1 was due to enhanced resistance to initial infection of the fungus (type 1 resistance), and not to reduction in spread (type 2 resistance). A panel of wheat-T. timopheevii (accession P95-99.1-1) introgression lines was screened for FHB resistance over two consecutive seasons using spray inoculation. Most introgression lines were similar in susceptibility to FHB as the wheat recipient (Paragon) but substitution of the terminal portion of chromosome 3BS of wheat with a similar-sized portion of 3G of T. timopheevii significantly enhanced FHB resistance in the wheat background.

Citation

Steed, A., King, J., Grewal, S., Yang, C. Y., Clarke, M., Devi, U., King, I. P., & Nicholson, P. (2022). Identification of Fusarium Head Blight Resistance in Triticum timopheevii Accessions and Characterization of Wheat-T. timopheevii Introgression Lines for Enhanced Resistance. Frontiers in Plant Science, 13, Article 943211. https://doi.org/10.3389/fpls.2022.943211

Journal Article Type Article
Acceptance Date Jun 15, 2022
Online Publication Date Jul 6, 2022
Publication Date Jul 6, 2022
Deposit Date Aug 16, 2024
Publicly Available Date Aug 27, 2024
Journal Frontiers in Plant Science
Electronic ISSN 1664-462X
Publisher Frontiers Media
Peer Reviewed Peer Reviewed
Volume 13
Article Number 943211
DOI https://doi.org/10.3389/fpls.2022.943211
Public URL https://nottingham-repository.worktribe.com/output/9410555
Publisher URL https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2022.943211/full

Files





You might also like



Downloadable Citations