Genomic surveillance uncovers a pandemic clonal lineage of the wheat blast fungus

Wheat, one of the most important food crops, is threatened by a blast disease pandemic. Here, we show that a clonal lineage of the wheat blast fungus recently spread to Asia and Africa following two independent introductions from South America. Through a combination of genome analyses and laboratory...

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Detalles Bibliográficos
Autores: Latorre, S.M., Were, V.M., Foster, A.J., Langner, T., Malmgren, A., Harant, A., Soichiro Asuke, Reyes-Avila, S., Gupta, D.R., Jensen, C., Weibin Ma, Mahmud, N.U., Md. Shåbab Mehebub, Rabson M. Mulenga, Abu Naim Md. Muzahid, Sanjoy Kumar Paul, S. M. Fajle Rabby, Abdullah Al Mahbub Rahat, Ryder, L., Ram-Krishna Shrestha, Sichilima, S., Soanes, D.M., Singh, P.K., Bentley, A.R., Saunders, D.G.O., Yukio Tosa, Croll, D., Lamour, K., Islam, M.T., Tembo, B., Win, J., Talbot, N.J., Burbano, H.A., Kamoun, S.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:México
Institución:Centro Internacional de Mejoramiento de Maíz y Trigo
Repositorio:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/22584
Acceso en línea:https://hdl.handle.net/10883/22584
Access Level:acceso abierto
Palabra clave:AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
Genome Analyses
Blast Disease Pandemic
Clonal Lineage
Rmg8 Gene
GENOMICS
PANDEMICS
WHEAT
BLASTS (OF PLANTS)
DISEASE RESISTANCE
Wheat
Descripción
Sumario:Wheat, one of the most important food crops, is threatened by a blast disease pandemic. Here, we show that a clonal lineage of the wheat blast fungus recently spread to Asia and Africa following two independent introductions from South America. Through a combination of genome analyses and laboratory experiments, we show that the decade-old blast pandemic lineage can be controlled by the Rmg8 disease resistance gene and is sensitive to strobilurin fungicides. However, we also highlight the potential of the pandemic clone to evolve fungicide-insensitive variants and sexually recombine with African lineages. This underscores the urgent need for genomic surveillance to track and mitigate the spread of wheat blast outside of South America and to guide preemptive wheat breeding for blast resistance.

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