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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-07-19-1401-RE
|2 doi
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|a pubmed24n1021.xml
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|a eng
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| 100 |
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|a Yu, Yang
|e verfasserin
|4 aut
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|a Population Structure and Aggressiveness of Sclerotinia sclerotiorum From Rapeseed (Brassica napus) in Chongqing City
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|c 2020
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|a Text
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|a ƒaComputermedien
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|a Date Completed 07.04.2020
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|a Date Revised 08.04.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Sclerotinia sclerotiorum is one of the most devastating fungal plant pathogens of oilseed Brassica and is distributed worldwide. In particular, Sclerotinia stem rot has always been a serious threat to rapeseed production in Chongqing City, China. In this study, simple sequence repeat (SSR) markers and mycelial compatibility groups (MCGs) were used to characterize the population structure of 90 geographic isolates of S. sclerotiorum collected from rapeseed in nine counties of Chongqing. A total of 52 microsatellite haplotypes were identified, and a few haplotypes were found with high frequency. Gene diversity ranged from 0.1570 to 0.4700 in nine populations. A constructed unweighted pair group with arithmetic mean dendrogram based on Nei genetic distance and a STRUCTURE analysis revealed that the genetic composition of the isolates collected in the five counties located in western Chongqing are different from those collected in the two eastern counties, suggesting that breed lines should be cultivated in both the western and eastern regions to effectively evaluate resistance levels. A total of 47 MCGs were identified, and 72% of the MCGs was represented by single isolates. Seven of 13 MCGs that included at least two isolates contained isolates from only one county. SSR haplotypes were not correlated with MCGs. A subset of 34 isolates were inoculated on rapeseed stems, and the aggressiveness showed variation. This research revealed the population genetic structure and aggressiveness of this pathogen in Chongqing, and the results will help to develop disease management and resistance screening strategies
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|a Journal Article
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|a Sclerotinia sclerotiorum
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4 |
|a aggressiveness
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4 |
|a population structure
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1 |
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|a Cai, Junsong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Linhao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Zhiqiang
|e verfasserin
|4 aut
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1 |
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|a Wang, Yabo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fang, Anfei
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Yuheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qing, Ling
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bi, Chaowei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 104(2020), 4 vom: 27. Apr., Seite 1201-1206
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|g volume:104
|g year:2020
|g number:4
|g day:27
|g month:04
|g pages:1201-1206
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|u http://dx.doi.org/10.1094/PDIS-07-19-1401-RE
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