Genetic dissection of fruit quality traits in the octoploid cultivated strawberry highlights the role of homoeo-QTL in their control

Autor: E. Lerceteau-Köhler, Christophe Rothan, Christel Renaud, Aurélie Petit, G. Guérin, Annick Moing, Béatrice Denoyes
Přispěvatelé: Création Variétale Fraises Fruits Rouges (Ciref), Biologie du fruit et pathologie (BFP), Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1, Pathologies Respiratoires : Protéolyse et Aérosolthérapie, Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM), Ecophysiologie et Génomique Fonctionnelle de la Vigne (UMR EGFV), Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1-Université Victor Segalen - Bordeaux 2-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), ProdInra, Migration, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1 (UB), Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1 (UB)-Université Victor Segalen - Bordeaux 2-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Theoretical and Applied Genetics
TAG Theoretical and Applied Genetics
TAG Theoretical and Applied Genetics, Springer Verlag, 2012, 124 (6), pp.1059-1077. ⟨10.1007/s00122-011-1769-3⟩
TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
TAG Theoretical and Applied Genetics, 2012, 124 (6), pp.1059-1077. ⟨10.1007/s00122-011-1769-3⟩
ISSN: 1432-2242
0040-5752
DOI: 10.1007/s00122-011-1769-3
Popis: Fruit quality traits are major breeding targets in the Rosaceae. Several of the major Rosaceae species are current or ancient polyploids. To dissect the inheritance of fruit quality traits in polyploid fleshy fruit species, we used a cultivated strawberry segregating population comprising a 213 full-sibling F1 progeny from a cross between the variety ‘Capitola’ and the genotype ‘CF1116’. We previously developed the most comprehensive strawberry linkage map, which displays seven homoeology groups (HG), including each four homoeology linkage groups (Genetics 179:2045–2060, 2008). The map was used to identify quantitative trait loci (QTL) for 19 fruit traits related to fruit development, texture, colour, anthocyanin, sugar and organic acid contents. Analyses were carried out over two or three successive years on field-grown plants. QTL were detected for all the analysed traits. Because strawberry is an octopolyploid species, QTL controlling a given trait and located at orthologous positions on different homoeologous linkage groups within one HG are considered as homoeo-QTL. We found that, for various traits, about one-fourth of QTL were putative homoeo-QTL and were localised on two linkage groups. Several homoeo-QTL could be detected the same year, suggesting that several copies of the gene underlying the QTL are functional. The detection of some other homoeo-QTL was year-dependent. Therefore, changes in allelic expression could take place in response to environmental changes. We believe that, in strawberry as in other polyploid fruit species, the mechanisms unravelled in the present study may play a crucial role in the variations of fruit quality. Electronic supplementary material The online version of this article (doi:10.1007/s00122-011-1769-3) contains supplementary material, which is available to authorized users.
Databáze: OpenAIRE
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