| Title: | Metabolic characterization of loci affecting sensory attributes in tomato allows an assessment of the influence of the levels of primary metabolites and volatile organic contents |
| Author(s): | Zanor MI; Rambla JL; Chaib J; Steppa A; Medina A; Granell A; Fernie AR; Causse M; |
| Address: | "Max-Planck-Institute for Molecular Plant Physiology, Am Muhlenberg 1, D-14476 Potsdam-Golm, Germany" |
| ISSN/ISBN: | 1460-2431 (Electronic) 0022-0957 (Print) 0022-0957 (Linking) |
| Abstract: | "Numerous studies have revealed the extent of genetic and phenotypic variation between both species and cultivars of tomato. Using a series of tomato lines resulting from crosses between a cherry tomato and three independent large fruit cultivar (Levovil, VilB, and VilD), extensive profiling of both central primary metabolism and volatile organic components of the fruit was performed. In this study, it was possible to define a number of quantitative trait loci (QTLs) which determined the levels of primary metabolites and/or volatile organic components and to evaluate their co-location with previously defined organoleptic QTLs. Correlation analyses between either the primary metabolites or the volatile organic compounds and organoleptic properties revealed a number of interesting associations, including pharmaceutical aroma-guaiacol and sourness-alanine, across the data set. Considerable correlation within the levels of primary metabolites or volatile organic compounds, respectively, were also observed. However, there was relatively little association between the levels of primary metabolites and volatile organic compounds, implying that they are not tightly linked to one another. A notable exception to this was the strong association between the levels of sucrose and those of a number of volatile organic compounds. The combined data presented here are thus discussed both with respect to those obtained recently from wide interspecific crosses of tomato and within the framework of current understanding of the chemical basis of fruit taste" |
| Keywords: | "Amino Acids/metabolism Crosses, Genetic Fruit/chemistry/genetics/metabolism Solanum lycopersicum/*chemistry/genetics/*metabolism *Quantitative Trait Loci Volatile Organic Compounds/*analysis/*metabolism;" |
| Notes: | "MedlineZanor, Maria Ines Rambla, Jose-Luis Chaib, Jamila Steppa, Agnes Medina, Aurora Granell, Antonio Fernie, Alisdair R Causse, Mathilde eng Research Support, Non-U.S. Gov't England 2009/04/07 J Exp Bot. 2009; 60(7):2139-54. doi: 10.1093/jxb/erp086. Epub 2009 Apr 3" |
