6533b834fe1ef96bd129ded3

RESEARCH PRODUCT

Selection and long-term cultures of high-yielding Digitalis obscura plants: RAPD markers for analysis of genetic stability

Isabel GavidiaPedro Pérez-bermúdezLucas Del Castillo Agudo

subject

biologyScrophulariaceaeDigitalis obscurafood and beveragesPlant ScienceGeneral Medicinebiology.organism_classificationRAPDTissue cultureMicropropagationBotanyGenotypeGeneticsGenetic variabilityAgronomy and Crop ScienceSelection (genetic algorithm)

description

Fifteen wild-growing plants of Digitalis obscura collected in three differents regions were characterized according to their capacities to biosynthesize cardenolides and to proliferate in vitro. Great genotype-dependent variabilities were found in both parameters. Selected genotypes were differentiated using randomly amplified polymorphic DNA (RAPD) markers. Once an elite genotype with high-yielding properties was isolated and micropropagated during 2 years, identity of the donor plant and the regenerants was confirmed by RAPD analysis.

https://doi.org/10.1016/s0168-9452(96)04510-4