Generic limits in Rhamnus s.l. L. (Rhamnaceae) inferred from nuclear and chloroplast DNA sequence phylogenies.
2004 (English)In: Taxon, ISSN 0040-0262, Vol. 53, no 2, 383-390 p.Article in journal (Refereed) Published
This study tested the monophyly of the previously proposed genera Alaternus, Frangula, Oreoherzogia, and Rhamnus s.str., and the phylogenetic relations suggested by Grubov (1949), within the Rhamnus s.l. clade.Based on a global sample of 22 species, we derived phylogenetic hypotheses using parsimony analysis of variation in trnL-F (chloroplast) and ITS (nuclear) DNA regions. Both Alaternus, Frangula, and Oreoherzogia gained strong support, and our results further support recognition of Frangula as a monophyletic genus. The resolution between Alaternus, Oreoherzogia, and the rest of Rhamnus s.str. was less clear, and the mainly Mediterranean Oreoherzogia was strongly grouped with the American R. crocea. Therefore, we consider it as unjustified to split the rest of Rhamnus into smaller genera. Regarding Grubov's phylogenetic hypothesis, our study could only support the dichotomy between Frangula and the rest of Rhamnus.
Place, publisher, year, edition, pages
International Association for Plant Taxonomy , 2004. Vol. 53, no 2, 383-390 p.
ALATERNUS; FRANGULA; ITS; NORTHERN HEMISPHERE; OREOHERZOGIA; PARSIMONY; TRNL-F
IdentifiersURN: urn:nbn:se:su:diva-25916OAI: oai:DiVA.org:su-25916DiVA: diva2:200796
Part of urn:nbn:se:su:diva-992004-04-082004-04-082010-12-08Bibliographically approved