Resumen

VEGAS, Ariadne; TRUJILLO, Gustavo  y  SANDREA, Yanet. Obtención, regeneración y evaluación de híbridos intergenéricos entre  Carica papaya Y Vasconcellea cauliflora. INCI [online]. 2003, vol.28, n.12, pp.710-714. ISSN 0378-1844.

The rescue of hybrids from intergeneric crosses between papaya (Carica papaya L.) and other vasconcelleas species (known before as caricas) can make possible gene transfer from a wild species to a cultivated one. The object of this research was to obtain and evaluate hybrid plants after rescue and regeneration of embryos or ovules, from the crosses made between C. papaya and Vasconcellea cauliflora. After cross pollination, 0 to 76% fructification was attained, according to the papaya type used. In the fruits, seeds were vain, immature or contained zygotic embryos. In most of them occurred in vivo zygotic polyembryony, although some individual hybrids were also formed. Development, germination, multiplication of embryo hybrids and plant regeneration in vitro were achieved. In the field, plants produced androic and andromonoic flowers.

Palabras clave : Carica papaya; Cultivo de Tejidos; Mejoramiento Genético; Rescate de Embriones; Vasconcellea cauliflora.