Relationships between chemical composition, antioxidant activity and genetic analysis with ISSR markers in flower buds of caper plants (Capparis spinosa L.) of two subspecies spinosa and rupestris of Spanish cultivars

Abstract Genetic diversity and variability between populations is essential for the long-term survival of plant species as well their adaptation to different habitats. The Capparis spinosa L. has two subspecies in Spain, with stipules thorny rupestris without them. In used its cultivation , which difficult manipulate due thorny. capers, unripe fruits tender shoots are food. caper a rich source phenolic compounds, that many flavonoids have been found parts high quantities, indicates it good functional compounds both food nutraceutical applications. There no published works on differences biochemical subspecies, so this work 32 varieties genetically analyzed know subspecies. Afterwards, various parameters find out if they present From results studied, there difference rupestis all except chlorophylls. was more among them, than . For this, can be concluded does not thorniness cultivated, instead losing or nutritional characteristics buds.