RESUMO
The mode of seed color inheritance in Capsicum was studied via an interspecific hybridization between C. pubescens Ruiz and Pav. (black seed color) and C. eximium Hunz. (yellow seed color). Black seed color was dominant over yellow seed color. The F(2) segregation pattern showed continuous variation. The generation means analysis indicated the presence of a significant effect of additive [d], dominance [h], and additive x additive [i] interaction for seed color inheritance. The estimate for a minimum number of effective factors (genes) involved in seed color inheritance was approximately 3.
Assuntos
Capsicum/genética , Padrões de Herança/genética , Modelos Genéticos , Pigmentação/fisiologia , Sementes/fisiologia , Capsicum/fisiologia , Hibridização Genética , Pigmentação/genética , Sementes/genéticaRESUMO
Capsaicinoids have been suggested as an aid in identifying Capsicum species. The distribution of seven capsaicinoids and their chemotaxonomic significance were examined within nearly 200 accessions of six Capsicum species. The seven capsaicinoids were separated and quantified using high-performance liquid chromatography. The capsaicinoid profiles were not consistent when examined within a species, therefore they have limited use as a chemotaxonomic indicator. In addition, the generalization that capsaicin and dihydrocapsaicin are always the major capsaicinoids was not true, exceptions were found for some of the accessions studied.
