title: Genotypic variability for antioxidant and quality parameters among tomato cultivars, hybrids, cherry tomatoes and wild species.
abstract: BACKGROUND
  Wide germplasm diversity and transferability of antioxidant parameters is the primary requirement for the development of high-antioxidant tomato cultivars. The present study was conducted to screen tomato genotypes including hybrids, varieties, cherry tomatoes, wild species, elite germplasm lines, interspecific hybrids and backcross populations for antioxidant activity and other quality parameters to select high-antioxidant lines with good total soluble solids (TSS) for further usage in crop improvement programmes.
  
  
  RESULTS
  Wild species and interspecific hybrids between LA-1777 (Solanum habrochaites) and an elite genotype 15SBSB recorded very high antioxidant capacity (FRAP), DPPH radical-scavenging ability, and high phenols and flavonoids. Interspecific hybrids also recorded very high total soluble solids (TSS). Significantly higher total carotenoids, lycopene and vitamin C were observed in IIHR-249-1 with moderately higher TSS. Cherry tomato lines IIHR-2866, 2865 and 2864 recorded four to five times more β-carotene than commercial hybrids/varieties.
  
  
  CONCLUSIONS
  Tomato line IIHR-249-1 can be used for improving antioxidant capacity, total carotenoids and lycopene in tomato breeding programmes. Cherry tomato lines IIHR-2866, 2865 and 2864 can be used for improving β-carotene content. LA-1777 and interspecific hybrids could be used for developing tomato lines rich in antioxidants as well as TSS.
authors.affiliation: Division of Plant Physiology and Biochemistry, Indian Institute of Horticultural Research, Bangalore, 560 089, India.
authors.forename: Pillakenchappa
authors.initials: P
authors.lastname: Kavitha
authors.forename: Kodthalu S
authors.initials: KS
authors.lastname: Shivashankara
authors.forename: Vala K
authors.initials: VK
authors.lastname: Rao
authors.forename: Avverahally T
authors.initials: AT
authors.lastname: Sadashiva
authors.forename: Kundapur V
authors.initials: KV
authors.lastname: Ravishankar
authors.forename: Gonchigar J
authors.initials: GJ
authors.lastname: Sathish
mesh_terms: D000975:Antioxidants / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D001205:Ascorbic Acid / Q000032:analysis / Q000096:biosynthesis / Q000737:chemistry; D002338:Carotenoids / Q000032:analysis / Q000096:biosynthesis / Q000737:chemistry; D002678:Chimera / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D003433:Crosses, Genetic; D019422:Dietary Sucrose / Q000032:analysis / Q000378:metabolism; D005419:Flavonoids / Q000032:analysis / Q000096:biosynthesis / Q000737:chemistry; D063427:Food Quality; D005638:Fruit / Q000737:chemistry / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D055951:Functional Food / Q000032:analysis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007194:India; D018551:Solanum lycopersicum / Q000737:chemistry / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D009753:Nutritive Value; D010636:Phenols / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D030821:Plants, Genetically Modified / Q000737:chemistry / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D032322:Solanum / Q000737:chemistry / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D012995:Solubility; D015854:Up-Regulation
chemical_list: D000975:Antioxidants; D019422:Dietary Sucrose; D005419:Flavonoids; D010636:Phenols; D002338:Carotenoids; D001205:Ascorbic Acid
keywords: antioxidant capacity; cherry tomatoes; lycopene; tomato; total phenols; wild species; β-carotene