PARTE UTILIZADA= Used part: Raíz.

ACCIÓN FARMACOLÓGICA= Pharmacological action: Purgante.

ZONA GEOGRÁFICA= Geografical zone : Paraguay, Argentina y Uruguay.

DIVERSIDAD GENÉTICA Y MEJORAMIENTO DE PLANTAS MEDICINALES= Medicinal plants and improvement of medicinal herbs:

The evolution of the chalcone synthase [CHS; malonyl-CoA:4-coumaroyl-CoA malonyltransferase (cyclizing), EC 2.3.1.74] multigene family in the genus Ipomoea is explored.  Thirteen CHS genes from seven Ipomoea species (family Convolvulaceae) were sequenced-three from genomic clones and the remainder from PCR amplification with primers designed from the 5' flanking region and the end of the 3' coding region of Ipomoea purpurea Roth.  Anal. of the data indicates a duplication of CHS that predates the divergence of the Ipomoea species in this study.  The Ipomoea CHS genes are among the most rapidly evolving of the CHS genes sequenced to date.  The CHS genes in this study are most closely related to the Petunia CHS-B gene, which is also rapidly evolving and highly divergent from the rest of the Petunia CHS sequences.  

1) TOURSARKISSIAN, Martín. Plantas medicinales de Argentina : sus nombres botánicos, vulgares, usos y distribución geográfica. Buenos Aires : Hemisferio Sur, 1980, p.44.

2) DURBIN, Mary L., et al. Evolution of the chalcone synthase gene family in the genus  Ipomoea.  Proceedings of the National Academy of Sciences of the United States of America. 1995, vol.92, nº8, p.3338-3342.