Exploring alternative germplasm for the development of stable high vitamin C content in tomato varieties

Abstract

a b s t r a c tThe genotypic potential for high l-ascorbic acid content of 15 accessions of S. lycopersicon and S. pimpinellifolium has been evaluated in three environments, including open-air and glasshouse cultivation and two localities. The environmental effect on l-ascorbic acid accumulation was highly genotype-dependant and the variance ascribed to the G×E environment was similar in importance to that ascribed to genotype. The variation found within accession might be ascribed to microenvironmental effects associated with temperature changes and oxidative stress or population variability. Several accessions with high genotypic values ( +G) have been identified. Among them, accession PI365959 of S. pimpinellifolium, showed a genotypic value of 293.8 mg kg −1 , statistically significant higher (P < 0.05) than the genotypic potential of controls reported to have high l-ascorbic content (CDP4777, 115.0 mg kg −1 ). It also showed positive G×E interactions, with a relatively high stability. Accession LA1423 of S. lycopersicon var. cerasiforme, despite being less stable, had also high genotypic values for l-ascorbic acid accumulation (197.4 mg kg −1 ). This germplasm will be of great interest for the development of new tomato cultivars targeted to added-value markets appreciating nutritional or functional quality. The close relationship of the selected material with the cultivated tomato will enable an efficient and rapid exploitation of their potential in breeding programmes.

Simultaneous determination of main phenolic acids and flavonoids in tomato by micellar electrokinetic capillary electrophoresis

“…S. neorickii and S. pimpinellifolium accessions were provided by the Genebank of the Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV, Spain). Wild materials were grown as reported by Leiva-Brondo Leiva-Brondo et al (2012). Cv.…”

Assessing the response of yield and comprehensive fruit quality of tomato grown in greenhouse to deficit irrigation and nitrogen application strategies

“…Larger irrigation volumes have been reported to decrease melon fruit quality, especially TSS contents (Sensoy et al, 2007). Among the antioxidant compounds in tomato, the carotenoids lycopene and beta carotene, vitamin C (l-ascorbic acid) and flavonols are the most important ones (Leiva-Brondo et al, 2012). Appropriate deficit irrigation trends to increase contents of lycopene, vitamin C and beta-carotenoid in tomato fruits (Favati et al, 2009;Patanè and Cosentino, 2010).…”

New opportunities for developing tomato varieties with enhanced carotenoid content

“…The considerable effects of both environment and G × E interaction reinforce the need to develop multi-environmental trials when screening for sources of variation of functional compounds. This important effect was also observed for the accumulation of vitamin C in which the effect of G × E interaction was higher than the effect of environment (Leiva-Brondo et al, 2012). The importance of G × E interaction was also highlighted in screening trials for vitamin C, carotenoids and polyphenols in traditional varieties of tomato (Cortés-Olmos el at., 2014).…”

“…Accession LA1423 would be the more stable of these promising materials with no significant G × E interactions, though the only significant interaction in both LA3633 and BGV6195 would lead to higher lycopene content in the open field. LA1423 and LA3633 previously showed a high potential for vitamin C accumulation, though in that case LA1423 proved to be quite unstable (Leiva-Brondo et al, 2012).…”