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Utility of a GFP-expressing Barley yellow mosaic virus for analyzing disease resistance genes

The soil-borne plasmodiophorid Polymyxa graminis is a vector for Barley yellow mosaic virus (BaYMV), which can severely damage barley plants. Although 22 disease resistance genes have been identified, only a few have been used for breeding virus-resistant cultivars. Recently, BaYMV strains capable o...

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Detalles Bibliográficos
Autores principales: Tanokami, Mai, Wang, Wei Qin, Yamamoto, Meimi, Hagiwara, Tomomi, Yumoto, Mari, Tomiyama, Aika, Mine, Satoru, Tamura, Yukiko, Kobayashi, Shunichi, Nakazawa, Yoshiko, Kato, Tsuneo, Natsuaki, Tomohide, Nishigawa, Hisashi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Society of Breeding 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8661491/
https://www.ncbi.nlm.nih.gov/pubmed/34912175
http://dx.doi.org/10.1270/jsbbs.21017
Descripción
Sumario:The soil-borne plasmodiophorid Polymyxa graminis is a vector for Barley yellow mosaic virus (BaYMV), which can severely damage barley plants. Although 22 disease resistance genes have been identified, only a few have been used for breeding virus-resistant cultivars. Recently, BaYMV strains capable of overcoming the effects of some of these genes have been detected. In this study, green fluorescent protein (GFP)-expressing BaYMV was constructed and used to examine viral dynamics in inoculated barley plants. Leaf inoculations resulted in higher infection rates than root or crown inoculations. Additionally, inoculations of some resistant cultivars produced infections that were similar to those observed in a field test. The results of this study indicate that the GFP-expressing virus is a useful tool for visualizing virus replication and dynamics, and for understanding resistance mechanisms.