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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19371
|2 doi
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|a pubmed24n1235.xml
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|a (NLM)37920100
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Poulicard, Nils
|e verfasserin
|4 aut
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|a Repeated loss of the ability of a wild pepper disease resistance gene to function at high temperatures suggests that thermoresistance is a costly trait
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|c 2024
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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 22.12.2023
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|a Date Revised 22.12.2023
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|a published: Print-Electronic
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|a RefSeq: AB523372, AF118127, AY849382, X72586, MT038211, MT038327
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|a Citation Status MEDLINE
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|a © 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.
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|a Specificity in plant-pathogen gene-for-gene (GFG) interactions is determined by the recognition of pathogen proteins by the products of plant resistance (R) genes. The evolutionary dynamics of R genes in plant-virus systems is poorly understood. We analyse the evolution of the L resistance locus to tobamoviruses in the wild pepper Capsicum annuum var. glabriusculum (chiltepin), a crop relative undergoing incipient domestication. The frequency, and the genetic and phenotypic diversity, of the L locus was analysed in 41 chiltepin populations under different levels of human management over its distribution range in Mexico. The frequency of resistance was lower in Cultivated than in Wild populations. L-locus genetic diversity showed a strong spatial structure with no isolation-by-distance pattern, suggesting environment-specific selection, possibly associated with infection by the highly virulent tobamoviruses found in the surveyed regions. L alleles differed in recognition specificity and in the expression of resistance at different temperatures, broad-spectrum recognition of P0 + P1 pathotypes and expression above 32°C being ancestral traits that were repeatedly lost along L-locus evolution. Overall, loss of resistance co-occurs with incipient domestication and broad-spectrum resistance expressed at high temperatures has apparent fitness costs. These findings contribute to understand the role of fitness trade-offs in plant-virus coevolution
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|a Journal Article
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|a Capsicum
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| 650 |
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4 |
|a Tobamovirus
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4 |
|a evolution of resistance
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| 650 |
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4 |
|a gene-for-gene systems
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| 650 |
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4 |
|a plant-virus interactions
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| 650 |
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4 |
|a temperature-dependent resistance
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| 700 |
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|a Pagán, Israel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a González-Jara, Pablo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mora, Miguel Ángel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hily, Jean-Michel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fraile, Aurora
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Piñero, Daniel
|e verfasserin
|4 aut
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| 700 |
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|a García-Arenal, Fernando
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 241(2023), 2 vom: 03. Jan., Seite 845-860
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:241
|g year:2023
|g number:2
|g day:03
|g month:01
|g pages:845-860
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|u http://dx.doi.org/10.1111/nph.19371
|3 Volltext
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