| Title: | Identification of a Solanum pennellii Chromosome 4 Fruit Flavor and Nutritional Quality-Associated Metabolite QTL |
| Author(s): | Liu Z; Alseekh S; Brotman Y; Zheng Y; Fei Z; Tieman DM; Giovannoni JJ; Fernie AR; Klee HJ; |
| Address: | "Horticultural Sciences Department, Genetics Institute, University of Florida, Gainesville FL, USA. Max Planck Institute of Molecular Plant Physiology Potsdam-Golm, Germany. Max Planck Institute of Molecular Plant PhysiologyPotsdam-Golm, Germany; Department of Life Sciences, Ben-Gurion University of the NegevBeersheba, Israel. US Department of Agriculture-Agricultural Research Service Robert W. Holley Center for Agriculture and Health, Cornell University, IthacaNY, USA; Robert W. Holley Center for Agriculture and Health, Cornell University and US Department of Agriculture-Agricultural Research Service, IthacaNY, USA" |
| ISSN/ISBN: | 1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking) |
| Abstract: | "A major resource for tomato quality improvement and gene discovery is the collection of introgression lines (ILs) of cultivated Solanum lycopersicum that contain different, defined chromosomal segments derived from the wild tomato relative, S. pennellii. Among these lines, IL4-4, in which the bottom of S. lycopersicum (cv. M82) chromosome 4 is replaced by the corresponding S. pennellii segment, is altered in many primary and secondary metabolites, including many related to fruit flavor and nutritional quality. Here, we provide a comprehensive profile of IL4-4 ripe fruit metabolites, the transcriptome and fine mapping of sub-ILs. Remarkably, out of 327 quantified metabolites, 185 were significantly changed in IL4-4 fruit, compared to the control. These altered metabolites include volatile organic compounds, primary and secondary metabolites. Partial least squares enhanced discriminant analysis of the metabolite levels among sub-ILs indicated that a genome region encompassing 20 putative open reading frames is responsible for most of the metabolic changes in IL4-4 fruit. This work provides comprehensive insights into IL4-4 fruit biochemistry, identifying a small region of the genome that has major effects on a large and diverse set of metabolites" |
| Keywords: | Il4-4 flavor fruit ripening metabolome transcriptome; |
| Notes: | "PubMed-not-MEDLINELiu, Zhongyuan Alseekh, Saleh Brotman, Yariv Zheng, Yi Fei, Zhangjun Tieman, Denise M Giovannoni, James J Fernie, Alisdair R Klee, Harry J eng Switzerland 2016/11/25 Front Plant Sci. 2016 Nov 9; 7:1671. doi: 10.3389/fpls.2016.01671. eCollection 2016" |
