The genus Origanum is a well-known culinary, aromatic and medicinal taxon of
the Lamiaceae family. Despite the notable progress that has been made in
Lamiaceae phylogenetics and in the Nepetoideae subfamily, the genus remains
insufficiently investigated concerning its interspecies evolutionary
relationships. The present study provides initial insights into the
phylogenetic relationships and sectional classification of Greek taxa, based
on three nuclear and five chloroplast DNA regions with eight taxa and 68
samples in total. The molecular results showed all (steno) endemic species
as monophyletic with high or absolute support. Additionally, O. calcaratum?s
scattered distribution between three phytogeographical areas in the Aegean
Archipelago is also confirmed molecularly. The molecular results also verify
the close affinity of certain sections; thus, sec. Majorana is placed as a
sister group of sec. Chilocalyx and sec. Amaracus with sec. Anatolicon.
However, based on species sectional classification, the groups from this
study differ from the sections previously recognized. Such species belong to
sections Amaracus and Anatolicon, where they are either mixed together or
are grouped with other sections. Regarding morphological analysis, certain
non-vegetative characters are highlighted as important for the delimitation
of most Greek taxa, while characters related to the calyx, when combined,
are very useful for the delimitation of sections.
Συμβολή στη μελέτη της χασμοφυτικής χλωρίδας της Κρήτης και της διαχείρισης της ως φυσικού πόρου, προς την κατεύθυνση του φυσιολατρικού τουρισμού, της ανθοκομίας,της Εθνοβοτανικής και της προστασίας των απειλουμένων φυτικών ειδών και βιοτόπων. Λιδακτορική Λιατριβή Ζαχαρία Λ. Κυπριωτάκη Γεωπόνου ΙΙΛΤΡΑ 1998 kS^'^S^i ΠΑΝΕΠΙΣΤΗΜΙΟ ΠΑΤΡΩΝ ΤΜΗΜΑ ΒΙΟΛΟΓΙΑΣ ΤΟΜΕΑΣ ΒΙΟΛΟΓΙΑΣ ΦΥΤΩΝ Συμβολή στη μελέτη της χασμοφυτικής χλωρίδας της Κρήτης και της διαχείρισης της ως φυσικού πόρου, προς την κατεύθυνση του φυσιολατρικού τουρισμού, της ανθοκομίας, της Εθνοβοτανικής και της προστασίας των απειλούμενων φυτικών ειδών και βιοτόπων.
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