Comparison of essential oils and genetic relationship of Origanum × intercedens to its parental taxa in the island of Crete

Production and characterisation of the intergeneric hybrids between Dendranthema morifolium and Artemisia vulgaris exhibiting enhanced resistance to chrysanthemum aphid (Macrosiphoniella sanbourni)

“…The greater similarity between the essential oil constituents of a hybrid to that of one of its parents has been frequently observed, and is assumed to reflect the complexity of the synthetic pathways of the secondary metabolites (Egerton-Warburton et al 1998;Gavalas et al 1998;Gounaris et al 2002). But the greater complexity of the oil constitutes in the hybrid reflects the co-expression of oil synthesis genes inherited from each of the hybrid's parents (Gounaris et al 2002).…”

“…But the greater complexity of the oil constitutes in the hybrid reflects the co-expression of oil synthesis genes inherited from each of the hybrid's parents (Gounaris et al 2002). Therefore, it is reasonable to expect that a backcross between the hybrid and paternal 'Variegata' will express a higher terpenoid concentration and thereby an improved level of aphid resistance.…”

A comparative study of different DNA barcoding markers for the identification of some members of Lamiacaea

“…However, in the last decades, continuous advances in molecular biology (e.g. genetics) have offered a set of new tools useful for investigating the relationships among these taxa and to characterize the peculiar chemical composition of related cultivars (Gounaris, Skoula, Fournaraki, Drakakaki, & Makris, 2002;Labra et al, 2004). Discontinuous markers like RAPDs, AFLPs and hypervariable DNA regions (such as SSRs) are among the most frequently used molecular approaches for these studies (Labra et al, 2004;Trindade, 2010).…”

Determination of growing location of marjoram (Origanum majorana L.) samples by comparison of essential oil profiles

“…Since most of the essential oil-producing plants possess complex profiles of essential oil compounds, both genotypical and environmental influences result in individually different essential oil compositions (i.e. different phenotypes), a variability that can be used to classify samples of unknown origin 1 or genotype 2,3 by applying multivariate statistics, such as principal component analysis (PCA) or canonical discriminant function analysis (CDA). Quality, 4 chemotaxonomic 5 or chemotypical 6,7,8 classifications are possible by applying these techniques.…”