Evolution and phylogenetic importance of endocarp and seed characters in <i>Viburnum</i> (Adoxaceae)

TitleEvolution and phylogenetic importance of endocarp and seed characters in Viburnum (Adoxaceae)
Publication TypeJournal Article
Year of Publication2008
AuthorsJacobs B, Donoghue MJ, Bouman F, Huysmans S, Smets E
JournalInternational Journal of Plant Sciences
Volume169
Pagination409-431
ISSN10585893
KeywordsAdoxaceae, Dipsacales, endocarp, ENDOSPERM, Evolution, phylogeny, PLANT anatomy, PLANT diversity, PLANTS – Analysis, PYRENEES, seed, SEEDS, Viburnum
Abstract

Recent phylogenetic analyses based on molecular markers have resulted in a solid phylogeny ofViburnum with 12 well-defined clades. This has allowed us to focus on character evolution, endocarp and seed characters in particular. Members ofViburnum bear drupes that differ considerably between clades. Characters such as pyrene shape and grooving, number of fibrous layers, seed coat anatomy, and seed rumination are phylogenetically highly valuable. Our results largely agree with the results based on molecular data and provide several additional insights. The position of V. clemensae as sister to the rest of Viburnum is supported by several characters. The early diversification of V. clemensae might explain its highly derived features. Furthermore, our results give an indication of the possible paraphyly of the Megalotinus clade, confirm the paraphyly of Hara’s section Solenotinus, and support the split of Hara’s section Odontotinus into four well-defined clades. Endocarp and seed characte

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