Cargando…

Wheat stem rust recorded for the first time in decades in Ireland

Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici (Pgt), occurs in most wheat‐growing areas worldwide, and, in western Europe since 2013, has started to re‐emerge after many decades of absence. Following this trend across western Europe, in 2020, we also detected and recorded wh...

Descripción completa

Detalles Bibliográficos
Autores principales: Tsushima, Ayako, Lewis, Clare M., Flath, Kerstin, Kildea, Stephen, Saunders, Diane G. O.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9303354/
https://www.ncbi.nlm.nih.gov/pubmed/35873178
http://dx.doi.org/10.1111/ppa.13532
_version_ 1784751843841146880
author Tsushima, Ayako
Lewis, Clare M.
Flath, Kerstin
Kildea, Stephen
Saunders, Diane G. O.
author_facet Tsushima, Ayako
Lewis, Clare M.
Flath, Kerstin
Kildea, Stephen
Saunders, Diane G. O.
author_sort Tsushima, Ayako
collection PubMed
description Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici (Pgt), occurs in most wheat‐growing areas worldwide, and, in western Europe since 2013, has started to re‐emerge after many decades of absence. Following this trend across western Europe, in 2020, we also detected and recorded wheat stem rust for the first time in five decades in experimental plots across five locations in Ireland. To examine the potential origin of the Irish Pgt infection in 2020, we carried out transcriptome sequencing on 12 Pgt‐infected wheat samples collected across Ireland and compared these to 76 global P. graminis isolates. This analysis identified a close genetic relationship between the Irish Pgt isolates and those from Ethiopia collected in 2015 after a severe stem rust epidemic caused by the TKTTF Pgt race, and with the UK‐01 Pgt isolate that was previously assigned to the TKTTF race. Subsequent pathology‐based race profiling designated two Irish isolates and recent UK and French Pgt isolates to the TKTTF Pgt race group. This suggests that the Irish Pgt occurrence most probably originated from recent long‐distance windborne dispersal of Pgt urediniospores from neighbouring countries in Europe where we confirmed the Pgt TKTTF race continues to be prevalent. The identification of wheat stem rust in Ireland at multiple locations in 2020 illustrates that the disease can occur in Ireland and emphasizes the need to re‐initiate local monitoring for this re‐emergent threat to wheat production across western Europe.
format Online
Article
Text
id pubmed-9303354
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-93033542022-07-22 Wheat stem rust recorded for the first time in decades in Ireland Tsushima, Ayako Lewis, Clare M. Flath, Kerstin Kildea, Stephen Saunders, Diane G. O. Plant Pathol Original Articles Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici (Pgt), occurs in most wheat‐growing areas worldwide, and, in western Europe since 2013, has started to re‐emerge after many decades of absence. Following this trend across western Europe, in 2020, we also detected and recorded wheat stem rust for the first time in five decades in experimental plots across five locations in Ireland. To examine the potential origin of the Irish Pgt infection in 2020, we carried out transcriptome sequencing on 12 Pgt‐infected wheat samples collected across Ireland and compared these to 76 global P. graminis isolates. This analysis identified a close genetic relationship between the Irish Pgt isolates and those from Ethiopia collected in 2015 after a severe stem rust epidemic caused by the TKTTF Pgt race, and with the UK‐01 Pgt isolate that was previously assigned to the TKTTF race. Subsequent pathology‐based race profiling designated two Irish isolates and recent UK and French Pgt isolates to the TKTTF Pgt race group. This suggests that the Irish Pgt occurrence most probably originated from recent long‐distance windborne dispersal of Pgt urediniospores from neighbouring countries in Europe where we confirmed the Pgt TKTTF race continues to be prevalent. The identification of wheat stem rust in Ireland at multiple locations in 2020 illustrates that the disease can occur in Ireland and emphasizes the need to re‐initiate local monitoring for this re‐emergent threat to wheat production across western Europe. John Wiley and Sons Inc. 2022-02-09 2022-05 /pmc/articles/PMC9303354/ /pubmed/35873178 http://dx.doi.org/10.1111/ppa.13532 Text en © 2022 The Authors. Plant Pathology published by John Wiley & Sons Ltd on behalf of British Society for Plant Pathology. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Tsushima, Ayako
Lewis, Clare M.
Flath, Kerstin
Kildea, Stephen
Saunders, Diane G. O.
Wheat stem rust recorded for the first time in decades in Ireland
title Wheat stem rust recorded for the first time in decades in Ireland
title_full Wheat stem rust recorded for the first time in decades in Ireland
title_fullStr Wheat stem rust recorded for the first time in decades in Ireland
title_full_unstemmed Wheat stem rust recorded for the first time in decades in Ireland
title_short Wheat stem rust recorded for the first time in decades in Ireland
title_sort wheat stem rust recorded for the first time in decades in ireland
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9303354/
https://www.ncbi.nlm.nih.gov/pubmed/35873178
http://dx.doi.org/10.1111/ppa.13532
work_keys_str_mv AT tsushimaayako wheatstemrustrecordedforthefirsttimeindecadesinireland
AT lewisclarem wheatstemrustrecordedforthefirsttimeindecadesinireland
AT flathkerstin wheatstemrustrecordedforthefirsttimeindecadesinireland
AT kildeastephen wheatstemrustrecordedforthefirsttimeindecadesinireland
AT saundersdianego wheatstemrustrecordedforthefirsttimeindecadesinireland