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|a 10.1093/jxb/erad306
|2 doi
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|a eng
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|a Pons, Clara
|e verfasserin
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|a Diversity and genetic architecture of agro-morphological traits in a core collection of European traditional tomato
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|c 2023
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 05.10.2023
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|a Date Revised 26.09.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a European traditional tomato varieties have been selected by farmers given their consistent performance and adaptation to local growing conditions. Here we developed a multipurpose core collection, comprising 226 accessions representative of the genotypic, phenotypic, and geographical diversity present in European traditional tomatoes, to investigate the basis of their phenotypic variation, gene×environment interactions, and stability for 33 agro-morphological traits. Comparison of the traditional varieties with a modern reference panel revealed that some traditional varieties displayed excellent agronomic performance and high trait stability, as good as or better than that of their modern counterparts. We conducted genome-wide association and genome-wide environment interaction studies and detected 141 quantitative trait loci (QTLs). Out of those, 47 QTLs were associated with the phenotype mean (meanQTLs), 41 with stability (stbQTLs), and 53 QTL-by-environment interactions (QTIs). Most QTLs displayed additive gene actions, with the exception of stbQTLs, which were mostly recessive and overdominant QTLs. Both common and specific loci controlled the phenotype mean and stability variation in traditional tomato; however, a larger proportion of specific QTLs was observed, indicating that the stability gene regulatory model is the predominant one. Developmental genes tended to map close to meanQTLs, while genes involved in stress response, hormone metabolism, and signalling were found within regions affecting stability. A total of 137 marker-trait associations for phenotypic means and stability were novel, and therefore our study enhances the understanding of the genetic basis of valuable agronomic traits and opens up a new avenue for an exploitation of the allelic diversity available within European traditional tomato germplasm
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Agro-morphological traits
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|a GWAS
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|a G×E
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| 650 |
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|a QTL
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|a core collection
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|a haplotype
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|a multi-environment trial
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|a traditional tomato
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|a Casals, Joan
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|a Brower, Matthijs
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|a Sacco, Adriana
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|a Riccini, Alessandro
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|a Hendrickx, Patrick
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|a Figás, Maria Del Rosario
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|a Fisher, Josef
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|a Grandillo, Silvana
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|a Mazzucato, Andrea
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|a Soler, Salvador
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|a Zamir, Dani
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|a Causse, Mathilde
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|a Díez, Maria José
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|a Finkers, Richard
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|a Prohens, Jaime
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|a Monforte, Antonio Jose
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|a Granell, Antonio
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 74(2023), 18 vom: 29. Sept., Seite 5896-5916
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:74
|g year:2023
|g number:18
|g day:29
|g month:09
|g pages:5896-5916
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|u http://dx.doi.org/10.1093/jxb/erad306
|3 Volltext
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