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J Exp Bot


Title:"Identification, introgression, and validation of fruit volatile QTLs from a red-fruited wild tomato species"
Author(s):Rambla JL; Medina A; Fernandez-Del-Carmen A; Barrantes W; Grandillo S; Cammareri M; Lopez-Casado G; Rodrigo G; Alonso A; Garcia-Martinez S; Primo J; Ruiz JJ; Fernandez-Munoz R; Monforte AJ; Granell A;
Address:"CSIC-Universidad Politecnica de Valencia, Instituto de Biologia Molecular y Celular de Plantas, Valencia, Spain. National Research Council of Italy, Institute of Biosciences and Bioresources (CNR-IBBR), Research Division Portici, Via Universita 133, Portici (Naples), Italy. CSIC-Universidad de Malaga, Instituto de Hortofruticultura Subtropical y Mediterranea, Algarrobo Costa, Malaga, Spain. Departamento de Biologia Aplicada, EPSO-UMH. Ctra, Beniel Km 3,2, Orihuela, Alicante, Spain. Universidad Politecnica de Valencia, Centro de Ecologia Quimica Agricola, Instituto Agroforestal Mediterraneo, Valencia, Spain"
Journal Title:J Exp Bot
Year:2017
Volume:68
Issue:3
Page Number:429 - 442
DOI: 10.1093/jxb/erw455
ISSN/ISBN:1460-2431 (Electronic) 0022-0957 (Print) 0022-0957 (Linking)
Abstract:"Volatile organic compounds (VOCs) are major determinants of fruit flavor, a primary objective in tomato breeding. A recombinant inbred line (RIL) population consisting of 169 lines derived from a cross between Solanum lycopersicum and a red-fruited wild tomato species Solanum pimpinellifolium accession (SP) was characterized for VOCs in three different seasons. Correlation and hierarchical cluster analyses were performed on the 52 VOCs identified, providing a tool for the putative assignation of individual compounds to metabolic pathways. Quantitative trait locus (QTL) analysis, based on a genetic linkage map comprising 297 single nucleotide polymorphisms (SNPs), revealed 102 QTLs (75% not described previously) corresponding to 39 different VOCs. The SP alleles exerted a positive effect on most of the underlying apocarotenoid volatile QTLs-regarded as desirable for liking tomato-indicating that alleles inherited from SP are a valuable resource for flavor breeding. An introgression line (IL) population developed from the same parental genotypes provided 12 ILs carrying a single SP introgression and covering 85 VOC QTLs, which were characterized at three locations. The results showed that almost half of the QTLs previously identified in the RILs maintained their effect in an IL form, reinforcing the value of these QTLs for flavor/aroma breeding in cultivated tomato"
Keywords:"Fruit/chemistry/metabolism *Genes, Plant Hybridization, Genetic *Quantitative Trait Loci Solanum/*genetics/*metabolism Volatile Organic Compounds/chemistry/*metabolism Fruit flavor SolCap tomato SNP array Solanum habrochaites Solanum pimpinellifolium intr;"
Notes:"MedlineRambla, Jose L Medina, Aurora Fernandez-Del-Carmen, Asun Barrantes, Walter Grandillo, Silvana Cammareri, Maria Lopez-Casado, Gloria Rodrigo, Guillermo Alonso, Arancha Garcia-Martinez, Santiago Primo, Jaime Ruiz, Juan J Fernandez-Munoz, Rafael Monforte, Antonio J Granell, Antonio eng England 2017/01/04 J Exp Bot. 2017 Jan 1; 68(3):429-442. doi: 10.1093/jxb/erw455"

 
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