|
|
||||||||
|
What's this? |
3Department of Biology, Wake Forest University, Winston-Salem, North Carolina 27109-7325; 4Department of Botany, University of Florida, Gainesville, Florida 32611-8526; and 5School of Biological Science, University of New South Wales, Sydney 2052, Australia
Phylogenetic relationships within the Andromedeae and closely related taxa were investigated by means of cladistic analyses based on phenotypic (morphology, anatomy, chromosome number, and secondary chemistry) and molecular (rbcL and matK nucleotide sequences) characters. An analysis based on combined molecular and phenotypic characters indicates that the tribe is composed of two major cladesthe Gaultheria group (incl. Andromeda, Chamaedaphne, Diplycosia, Gaultheria, Leucothoë, Pernettya, Tepuia, and Zenobia) and the Lyonia group (incl. Agarista, Craibiodendron, Lyonia, and Pieris). Andromedeae are shown to be paraphyletic in all analyses because the Vaccinieae link with some or all of the genera of the Gaultheria group. Oxydendrum is sister to the clade containing the Vaccinieae, Gaultheria group, and Lyonia group. The monophyly of Agarista, Lyonia, Pieris, and Gaultheria (incl. Pernettya) is supported, while that of Leucothoë is problematic. The close relationship of Andromeda and Zenobia is novel and was strongly supported in the molecular (but not morphological) analyses. Diplycosia, Tepuia, Gaultheria, and Pernettya form a well-supported clade, which can be diagnosed by the presence of fleshy calyx lobes and methyl salicylate. Recognition of Andromedeae is not reflective of our understanding of geneological relationships and should be abandoned; the Lyonia group is formally recognized at the tribal level.
Key Words: Andromedeae Ericaceae Lyonieae matK molecular systematics rbcL.
![]()
CiteULike
Complore
Connotea
Del.icio.us
Digg
Facebook
Reddit
Technorati
Twitter What's this?
This article has been cited by other articles:
![]() |
K. A. Kron, E. A. Powell, and J. L. Luteyn Phylogenetic relationships within the blueberry tribe (Vaccinieae, Ericaceae) based on sequence data from MATK and nuclear ribosomal ITS regions, with comments on the placement of Satyria Am. J. Botany, February 1, 2002; 89(2): 327 - 336. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. B. Zomlefer, N. H. Williams, W. M. Whitten, and W. S. Judd Generic circumscription and relationships in the tribe Melanthieae (Liliales, Melanthiaceae), with emphasis on Zigadenus: evidence from ITS and trnL-F sequence data Am. J. Botany, September 1, 2001; 88(9): 1657 - 1669. [Abstract] [Full Text] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |