Resistance to quambalaria shoot blight and myrtle rust in Corymbia calophylla seedlings

H.T. Duong; G.S. Pegg; R. Mazanec; J.A. McComb; T. Burgess; G.E.St.J. Hardy

doi:10.1111/efp.12775

Back

Resistance to quambalaria shoot blight and myrtle rust in Corymbia calophylla seedlings

Journal article

Open access

Peer reviewed

Resistance to quambalaria shoot blight and myrtle rust in Corymbia calophylla seedlings

H.T. Duong, G.S. Pegg, R. Mazanec, J.A. McComb, T. Burgess and G.E.St.J. Hardy

Forest Pathology, Vol.52(5), Art. e12775

2022

DOI: https://doi.org/10.1111/efp.12775

Appears in Open Access via Read & Publish Agreements

Files and links (1)

pdf

Corymbia calophylla985.31 kBDownload View

Published (Version of Record)CC BY-NC-ND V4.0, Open Access

Abstract

Corymbia calophylla (marri), an endemic keystone tree species in southwest Western Australia, is increasingly impacted by the introduced basidiomycete smut Quambalaria pitereka. The basidiomycete rust Austropuccinia psidii (myrtle rust), an invasive pathogen recently introduced to Eastern Australia, is expected to spread to the southwest of Western Australia eventually. Austropuccinia psidii has similar epidemiology to Q. pitereka, and there is concern that C. calophylla may be susceptible. Preliminary pathogenicity tests showed significant differences in aggressiveness between twelve Q. pitereka isolates, and there was evidence of interactions between isolates and C. calophylla provenances. Seedlings from 59 open-pollinated families from 11 provenances covering the natural range of marri were screened for resistance to Q. pitereka and A. psidii under controlled glasshouse conditions. Resistance of seedlings within provenances to Q. pitereka and A. psidii differed significantly. There was no significant correlation between resistance to Q. pitereka and resistance to A. psidii. Seedlings of provenances from wetter regions were more resistant to both pathogens, but the correlation coefficients were insignificant. Seedlings of four families in three provenances (Serpentine, Chidlow, and Kingston) showed 100% resistance to Q. pitereka. Narrow-sense heritability estimates were 0.07 for quambalaria shoot blight resistance and 0.34 for myrtle rust resistance. The results indicate the potential to use selected families/individuals resistant to Q. pitereka and A. psidii for tree improvement programs and adaptive management strategies.

Details

Title: Resistance to quambalaria shoot blight and myrtle rust in Corymbia calophylla seedlings
Authors/Creators: H.T. Duong (Author/Creator) - Murdoch University
G.S. Pegg (Author/Creator) - Department of Primary Industries
R. Mazanec (Author/Creator) - Department of Biodiversity, Conservation and Attractions
J.A. McComb (Author/Creator) - Murdoch University
T. Burgess (Author/Creator) - Murdoch University
G.E.St.J. Hardy (Author/Creator) - Murdoch University
Publication Details: Forest Pathology, Vol.52(5), Art. e12775
Publisher: Blackwell Publishing
Identifiers: 991005542010207891
Copyright: © 2022 The Authors.
Murdoch Affiliation: Harry Butler Institute; Centre for Terrestrial Ecosystem Science and Sustainability; School of Veterinary Medicine
Language: English
Resource Type: Journal article

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites

Metrics

38 File views/ downloads

91 Record Views

1 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.97 Plant Pathology; 3.97.636 Fungal Plant Pathogens
Web Of Science research areas: Forestry
ESI research areas: Plant & Animal Science