Differences in seed dormancy associated with the domestication of Cucurbita maxima: Elucidation of some mechanisms behind this response
- Martinez, Analia Beatriz Luján
- Lema, Veronica Soledad
- Capparelli, Aylen
- Lopez Anido, Fernando Sebastian
- Benech-Arnold, Roberto Luis
- Bartoli, Carlos Guillermo
DOIAbstract
This work presents the results of physiological studies developed to understand modifications linked to the reduction of seed dormancy provoked by domestication processes. The experiments performed compared wild and domesticated Cucurbita subspecies and their hybrids developed by reciprocal crossings. Seeds of two accessions of the wild subspecies presented dormancy, but it was largely reduced in seeds from the domesticated genotype, and partially reverted in hybrids, especially in those obtained when the domesticated genotype was used as the mother plant. In addition, naked embryos of all subspecies did not display dormancy when incubation was performed at 28°C, but embryo germination was progressively reduced only in the wild genotype und...
Add to ORKG