Parents’ Selection Affects Embryo Rescue, Seed Regeneration and the Heredity of Seedless Trait in Table Grape Breeding Programs

The development of new seedless cultivar represents one the most important goals in table grape breeding programmes worldwide. common technique to obtain cultivars is embryo rescue, an approach that allows isolation immature embryos and their cultivation vitro. In this study, a total 23 crosses (developed employing seeded parent) were performed during two seasons (2017 2018) for 1140 seedlings. For each cross, principal parameters related efficiency pollination measured (harvested bunches, collected berries, recovered embryos/seeds plants obtained). Based on these traits, statistical analyses calculate female male parental compare techniques propagation employed: rescue (7.8% obtained) gamic (8.4%). Finally, segregation SSR marker p3_VvAGL11 was evaluated progeny four which same used alternately as or parent (SugxIta/ItaxSug CrixIta/ItaxCri). showed positive correlation between seeds obtained, exclusively combination with parent. crossing combinations investigated indicate some genotypes outperformed others when terms produced. Therefore, seedlings obtained parents actually balanced those ones. proposed research aims provide useful information guide choice genetic improvement programs grapes, increase efficiency.