Sesión 3: Mejoramiento Genético

Keywords: Growth habit, Seed size, Cyanogenesis, Pest resistance, High-Throughput phenotyping
Phaseolus lunatus (Lima bean) is the most economically important grain legume in California. The UC Davis Dry Bean Breeding program supports this industry by developing new varieties that are white-seeded, large- and small-seeded, bush or viny, with pest resistance and other adaptations to the Central Valley of California. To support this work, several studies have been conducted in the Gepts Lab at UC Davis in genotyping and phenotyping important agronomic traits. Genetic studies have focused on the traits of determinacy, seed size, and cyanogenesis. Methods have included quantitative trait locus mapping and a genome wide association study. Phenotyping studies have focused on cyanogenesis and the complex trait of tolerance or resistance to the insect pest Lygus hesperus. Methods have included controlled greenhouse studies with colony raised insects and field-based scoring. As part of this work, preliminary studies with novel autonomous insect sensors have been conducted to develop a high-throughput phenotyping method for insect tolerance.
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