Abstract
Carotenes are plant secondary metabolites that are important for human health. Additionally, carotenes influence fruit color, which is a major trait for breeding. We compared the expression and sequences of genes related to color phenotypes in tomato inbred lines that produce different colors of fleshy fruit. Up-regulation of CYC-B expression and higher amount of β-carotene content in fruit ripening stage and nucleotide variations in the 5′ region of the gene were detected in orange fruited inbred lines compared to the other lines. Our results indicated that there is a close relationship between the expression pattern of the CYC-B gene and the orange color of fleshy fruit. We identified 4 SNPs in the promoter region of CYC-B genes associated with the orange fruit color. Moreover, the segregation ratio and color phenotypes in an F2 generation further indicated that one of the detected SNPs were associated with the orange color in the tested inbred lines. Our study provides valuable information to breeders for marker-assisted selection to produce desirable tomato varieties with health benefits by varying carotenoid levels.
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References
Alba R, Payton P, Fei Z, McQuinn R, Debbie P, Martin GB, Tanksley SD, Giovannoni JJ (2005) Transcriptome and selected metabolite analyses reveal multiple points of ethylene control during tomato fruit development. Plant Cell 17:2954–2965
Fray RG, Grierson D (1993) Identification and genetic analysis of normal and mutant phytoene synthase genes of tomato by sequencing, complementation and co-suppression. Plant Mol Biol 22(4):589–602
Fujisawa M, Nakano T, Shima Y, Ito Y (2013) A large-scale identification of direct targets of the tomato MADS box transcription factor ripening inhibitor reveals the regulation of fruit ripening. Plant Cell 25:371–386
Gady AL, Vriezen WH, Van de Wal MH, Huang P, Bovy AG, Visser RG, Bachem CW (2012) Induced point mutations in the phytoene synthase 1 gene cause differences in carotenoid content during tomato fruit ripening. Mol Breed 29:801–812
Ilic D, Forbes KM, Hassed C (2011) Lycopene for the prevention of prostate cancer. Cochrane Database Syst Rev 11:CD008007
Isaacson T, Ronen G, Zamir D, Hirschberg J (2002) Cloning of tangerine from tomato reveals a carotenoid isomerase essential for the production of beta-carotene and xanthophylls in plants. Plant Cell 14:333–342
Isaacson T, Ohad I, Beyer P, Hirschberg J (2004) Analysis in vitro of the enzyme CRTISO establishes a poly-cis-carotenoid biosynthesis pathway in plants. Plant Physiol 136:4246–4255
Kachanovsky DE, Filler S, Isaacson T, Hirschberg J (2012) Epistasis in tomato color mutations involves regulation of phytoene synthase 1 expression by cis-carotenoids. Proc Natl Acad Sci USA 109:19021–19026
Kang B, Gu Q, Tian P, Xiao L, Cao H, Yang W (2014) A chimeric transcript containing Psy1 and a potential mRNA is associated with yellow flesh color in tomato accession PI 114490. Planta 240:1011–1021
Lu R, Dan H, Wu R, Meng W, Liu N, Jin X, Zhou M, Zeng X, Zhou G, Chen Q (2011) Lycopene: features and potential significance in the oral cancer and precancerous lesions. J Oral Pathol Med 40:361–368
Pan IL, McQuinn R, Giovannoni JJ, Irish VF (2010) Functional diversification of AGAMOUS lineage genes in regulating tomato flower and fruit development. J Exp Bot 61:1795–1806
Pecker I, Chamovitz D, Linden H, Sandmann G, Hirschberg J (1992) A single polypeptide catalyzing the conversion of phytoene to zeta-carotene is transcriptionally regulated during tomato fruit ripening. Proc Natl Acad Sci USA 89:4962–4966
Romero I, Tikunov Y, Bovy A (2011) Virus-induced gene silencing in detached tomatoes and biochemical effects of phytoene desaturase gene silencing. J Plant Physiol 168:1129–1135
Ronen G, Cohen M, Zamir D, Hirschberg J (1999) Regulation of carotenoid biosynthesis during tomato fruit development: expression of the gene for lycopene epsilon-cyclase is down-regulated during ripening and is elevated in the mutant Delta. Plant J 17:341–351
Ronen G, Carmel-Goren L, Zamir D, Hirschberg J (2000) An alternative pathway to beta -carotene formation in plant chromoplasts discovered by map-based cloning of beta and old-gold color mutations in tomato. Proc Natl Acad Sci USA 97:11102–11107
Tomato Genome Consortium (2012) The tomato genome sequence provides insights into fleshy fruit evolution. Nature 485:635–641
Vrebalov J, Ruezinsky D, Padmanabhan V, White R, Medrano D, Drake R, Schuch W, Giovannoni J (2002) A MADS-box gene necessary for fruit ripening at the tomato ripening-inhibitor (rin) locus. Science 296:343–346
Yu Q, Ghisla S, Hirschberg J, Mann V, Beyer P (2011) Plant carotene cis-trans isomerase CRTISO: a new member of the FAD(RED)-dependent flavoproteins catalyzing non-redox reactions. J Biol Chem 286:8666–8676
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This research was supported by the Golden Seed Project (Center for Horticultural Seed Development, No. 213003-04-4-SB110), Ministry of Agriculture, Food and Rural Affairs (MAFRA), Ministry of Oceans and Fisheries (MOF), Rural Development Administration (RDA) and Korea Forest Service (KFS).
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IH and ISN designed the experiments; IH and JH performed the experiments; IH, YK, and ISN wrote the paper.
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Hwang, I., Kim, Y., Han, J. et al. Orange color is associated with CYC-B expression in tomato fleshy fruit. Mol Breeding 36, 42 (2016). https://doi.org/10.1007/s11032-016-0465-z
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DOI: https://doi.org/10.1007/s11032-016-0465-z