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240130s2024 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-04-23-0727-SR
|2 doi
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|a eng
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1 |
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|a Li, Hongfu
|e verfasserin
|4 aut
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| 245 |
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|a Race and Virulence Dynamics of Puccinia triticina in China During 2007 to 2021
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| 264 |
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|c 2024
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|a Text
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|a Date Completed 01.03.2024
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|a Date Revised 01.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The challenge of wheat leaf rust on wheat production is a recurring issue. Race identification of Puccinia triticina (Pt) serves as the foundation for preventing and controlling this disease. In a 15-year study, we identified 2,900 isolates of Pt from 20 provinces, cities, or autonomous regions in China during 2007 to 2021 and found 332 virulence phenotypes with 11 predominant phenotypes: PHT (8.3%), THT (5.4%), PHK (4.5%), PHJ (3.7%), THJ (3.6%), SHJ (3.5%), THS (3.3%), FGD (2.9%), THK (2.6%), PHS (2.4%), and PHD (2.0%). The virulence frequency for 40 Lr genes was identified across different years and areas; one major reason for the race dynamics was the attenuation to Lr1 and Lr26, which was more evident in southwest China. Lr9, Lr24, Lr28, Lr38, and Lr42 maintained effectiveness in China, while Lr2c, Lr10, Lr12, Lr14a, Lr14b, Lr22a, Lr33, and Lr36 nearly lost their effectiveness against wheat leaf rust disease. No significant difference was found among predominant phenotypes in different areas (P > 0.1). However, 12 Lr sites were found to have differences in virulence frequencies with values greater than 20% across various locations; furthermore, the lowest and highest virulence values were observed in north China (Area 1) and northwest China (Area 5), respectively. According to phenotype dynamics, PHT, THT, FGD, THK, and PHS are more likely to persist over time. In addition, much attention should be given toward discovering rising combinations of virulent phenotypes
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|a Journal Article
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|a Puccinia triticina
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| 650 |
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|a predominant phenotype
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| 650 |
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|a race identification
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| 650 |
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4 |
|a virulence frequency
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| 700 |
1 |
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|a Huang, Liang
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|4 aut
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| 700 |
1 |
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|a Zhang, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Bo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Li
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Wanquan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Taiguo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
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|g 108(2024), 2 vom: 22. Feb., Seite 256-263
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|g volume:108
|g year:2024
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|g day:22
|g month:02
|g pages:256-263
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|u http://dx.doi.org/10.1094/PDIS-04-23-0727-SR
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