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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-06-20-1409-RE
|2 doi
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|a pubmed24n1062.xml
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|a (DE-627)NLM318852349
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|a (NLM)33320044
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Nguyen, Van Chung
|e verfasserin
|4 aut
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|a Evidence of Sexual Reproduction Events in the Dagger Nematode Xiphinema index in Grapevine Resistance Experiments Under Controlled Conditions
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 10.12.2021
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|a Date Revised 14.12.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The dagger nematode Xiphinema index has a major economic impact because of its transmission of Grapevine fanleaf virus to grapevines. This vector nematode, which was introduced into Western countries from the Middle East together with the domesticated grapevine, mostly reproduces by meiotic parthenogenesis, but microsatellite multilocus genotype (MLG) analysis has revealed the occurrence of rare sexual reproduction events in field conditions. In a previous 6-year study under controlled conditions, we evaluated the durability of resistance to X. index in accessions derived from a muscadine resistance source and reference accessions. In this previous study, we used an equal-proportion mixture of four lines (from Spain, Italy, Greece, and Iran) representative of X. index diversity as the inoculum, and we collected random samples in 3-, 4-, 5-, and 6-year-old vines. Here, we genotyped the individuals from these samples using the MLG technique, and we analyzed the changes in line frequency and the occurrence of sexual reproduction events between lines over time. The nematode lines differed in aggressiveness and hybrids between lines were detected at a low, but apparently increasing rate. Hybridization events were recovered in all accessions, regardless of resistance status and propagation type. Finally, our data provide the first evidence of sexual reproduction in the nematode X. index under controlled conditions
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|a Journal Article
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|a durability
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|a hybridization
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|a plant resistance
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|a Khallouk, Samira
|e verfasserin
|4 aut
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|a Polidori, Joël
|e verfasserin
|4 aut
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|a Truch, Julia
|e verfasserin
|4 aut
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|a Portier, Ulysse
|e verfasserin
|4 aut
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|a Lafargue, Maria
|e verfasserin
|4 aut
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|a Tandonnet, Jean-Pascal
|e verfasserin
|4 aut
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|a Ollat, Nathalie
|e verfasserin
|4 aut
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| 700 |
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|a Van Ghelder, Cyril
|e verfasserin
|4 aut
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| 700 |
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|a Banora, Mohamed Youssef
|e verfasserin
|4 aut
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| 700 |
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|a Esmenjaud, Daniel
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 105(2021), 9 vom: 15. Sept., Seite 2664-2669
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|g volume:105
|g year:2021
|g number:9
|g day:15
|g month:09
|g pages:2664-2669
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|u http://dx.doi.org/10.1094/PDIS-06-20-1409-RE
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