Phenotyping introgression lines of Solanum incanum in the eggplant gene pool

Eggplant (Solanum melongenaL.) is a crop with a narrow genetic base. This may be caused by the fact that the domestication of eggplant was carried out from a limited gene pool, perhaps resulting in a founder effect that contributed to a low-genetic diversity in eggplant varieties. Today, a collection of introgression lines of S. incanum in the gene pool of S. melongena (MIILs), is being developed, which together with marker-assisted selection studies, will elucidate the genetic control and will identify QTLs of important characteristics such as shape, size and fruit colour, anthocyanin and polyphenol contents of eggplant pulp, thorniness, resistance and tolerance towards biotic and abiotic stresses. The objectives of this research were to conduct a phenotypical and phenomic characterization and evaluation of fruits (from the second generation of self-fertilization for MIILs formation) in chlorogenic acid. The phenotypical and phenomic characterization showed a considerable variability in the evaluated characteristics among MIILs. The detailed characterization of fruit shape, using the Tomato Analyzer software, yielded quantitative data about different characteristics that are not obtained through morphological descriptors measured by hand. Such data made it possible to detect differences among MIILs. The genetic control study, particularly with chlorogenic acid, showed that MIILs had contents that were significantly different, some of them exceeding the contents of parent material.

• 主要作者: Sotomayor Cantos, Ignacio Antonio (author)
• 其他作者: Gramazio, Pietro (author), Vilanova Navarro, Santiago (author), Plazas Ávila, Mariola (author), Prohens Tómas, Jaime (author)
• 格式: article
• 語言: spa
• 出版: 2016
• 在線閱讀: https://revistasespam.espam.edu.ec/index.php/Revista_ESPAMCIENCIA/article/view/126