Two cultivars, Volkamer lemon and Kaffir lime, whose common
names suggest that they should belong in the lemon–lime group,
were not found near the main lemon–lime cluster in Fig. 2. This
suggests that they do not belong in that group, at least in terms
of their blossom volatile compositions. At least six DNA markers
which were common to both Volkamer lemon and mandarins were
observed in a study by Nicolosi et al. (2000). This genetic similarity
could partly explain the observed proximity of Volkamer blossoms
to the mandarin group in the PCA score plot. As seen in Fig. 2, Kaffir
lime (C. hystrix) occupied a distinct position on the PCs due to its
unique volatile composition as discussed earlier. These results
were also in accordance to the phylogenic findings of Nicolosi
et al. (2000), which placed C. hystrix in a cluster genetically distinct
from the ‘citron’ cluster.
Two cultivars, Volkamer lemon and Kaffir lime, whose commonnames suggest that they should belong in the lemon–lime group,were not found near the main lemon–lime cluster in Fig. 2. Thissuggests that they do not belong in that group, at least in termsof their blossom volatile compositions. At least six DNA markerswhich were common to both Volkamer lemon and mandarins wereobserved in a study by Nicolosi et al. (2000). This genetic similaritycould partly explain the observed proximity of Volkamer blossomsto the mandarin group in the PCA score plot. As seen in Fig. 2, Kaffirlime (C. hystrix) occupied a distinct position on the PCs due to itsunique volatile composition as discussed earlier. These resultswere also in accordance to the phylogenic findings of Nicolosiet al. (2000), which placed C. hystrix in a cluster genetically distinctfrom the ‘citron’ cluster.
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