Monophyly of the Convolvulaceae and circumscription of their major lineages based on DNA sequences of multiple chloroplast loci

• DOI: 10.3732/ajb.89.9.1510
• Publication Date: 2008-02-29T22:42:44Z
• Authors: Saša Stefanović; Lori Krueger; Richard G. Olmstead
• Keywords: Circumscription; Convolvulaceae; Monophyly; NdhF

Convolvulaceae, a large family of worldwide distribution, exhibit rich diversity morphological characteristics and ecological habitats. Previous efforts to systematize this without cladistic phylogenetic framework have disagreed on the circumscription as well tribal composition relationship. In order circumscribe assess relationships among its major lineages, broad data set was constructed containing representatives all ten recognized tribes Convolvulaceae plus putatively related families within Asteridae. This is done by using four chloroplast regions: rbcL , atpB psbE‐J operon, trnL ‐ trnF intron/spacer. The results indicate that are monophyletic sister Solanaceae. Two three groups been proposed previously separate families, Cuscuta Dichondreae, nested in analysis, third, Humbertia other members family. exact position could not be ascertained, but some alternatives were rejected with confidence. study identified several distinct groups, which correspond earlier taxonomic treatments. Close Hildebrandtieae Cresseae Ipomoeeae Argyreieae (forming Echinoconieae) confirmed. polyphyly Merremieae, Convolvuleae, Poraneae, Erycibeae first study.