European traditional tomatoes galore a result of farmers' selection of a few diversity-rich loci

European traditional tomatoes galore : a result of farmers' selection of a few diversity-rich loci

© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 73(2022), 11 vom: 02. Juni, Seite 3431-3445
1. Verfasser: Blanca, Jose (VerfasserIn)
Weitere Verfasser: Pons, Clara, Montero-Pau, Javier, Sanchez-Matarredona, David, Ziarsolo, Peio, Fontanet, Lilian, Fisher, Josef, Plazas, Mariola, Casals, Joan, Rambla, Jose Luis, Riccini, Alessandro, Pombarella, Samuela, Ruggiero, Alessandra, Sulli, Maria, Grillo, Stephania, Kanellis, Angelos, Giuliano, Giovanni, Finkers, Richard, Cammareri, Maria, Grandillo, Silvana, Mazzucato, Andrea, Causse, Mathilde, Díez, Maria José, Prohens, Jaime, Zamir, Dani, Cañizares, Joaquin, Monforte, Antonio Jose, Granell, Antonio
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Crop evolution diversification fruit morphology genome-wide association study genotyping by sequencing selection single nucleotide polymorphism
Beschreibung
Zusammenfassung:© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology.
A comprehensive collection of 1254 tomato accessions, corresponding to European traditional and modern varieties, early domesticated varieties, and wild relatives, was analyzed by genotyping by sequencing. A continuous genetic gradient between the traditional and modern varieties was observed. European traditional tomatoes displayed very low genetic diversity, with only 298 polymorphic loci (95% threshold) out of 64 943 total variants. European traditional tomatoes could be classified into several genetic groups. Two main clusters consisting of Spanish and Italian accessions showed higher genetic diversity than the remaining varieties, suggesting that these regions might be independent secondary centers of diversity with a different history. Other varieties seem to be the result of a more recent complex pattern of migrations and hybridizations among the European regions. Several polymorphic loci were associated in a genome-wide association study with fruit morphological traits in the European traditional collection. The corresponding alleles were found to contribute to the distinctive phenotypic characteristic of the genetic varietal groups. The few highly polymorphic loci associated with morphological traits in an otherwise a low-diversity population suggests a history of balancing selection, in which tomato farmers likely maintained the morphological variation by inadvertently applying a high selective pressure within different varietal types
Beschreibung:Date Completed 06.06.2022
Date Revised 07.12.2022
published: Print
ErratumIn: J Exp Bot. 2022 Oct 18;73(18):6508. - PMID 35939369
Citation Status MEDLINE
ISSN:1460-2431
DOI:10.1093/jxb/erac072