Willdenowia 37
Willdenowia – Annals of the Botanic Garden and
Botanical Museum Berlin-Dahlem
ISSN 0511-9618
© 2007 BGBM Berlin-Dahlem.
Anderberg, A. A., Manns, U. & Källersjö, M. 2007: Phylogeny and
floral evolution of the Lysimachieae (Ericales, Myrsinaceae): evidence
from ndhF sequence data.
Willdenowia 37: 407-421.
doi:10.3372/wi.37.37202
Abstract
Earlier hypotheses of floral evolution in Lysimachia and related genera
were tested by phylogenetic analysis of DNA sequences from the plastid
gene ndhF. It is concluded that taxa with flowers provided with oil-producing
trichomes are not advanced and buzz-pollinated species with anther cone are not
ancestral as earlier proposed. Instead, species of Lysimachia with
buzz-pollinated flowers belong to one derived clade, species with flowers
provided with nectar producing trichomes belong to another, both groups
having evolved from yellow flowered oil-producing ancestors. We also
show that Lysimachia and most of its subgenera as well as the genera
Anagallis, Pelletiera and Asterolinon are paraphyletic or polyphyletic
as presently circumscribed, and that Trientalis and a few American species
of Lysimachia are the closest relatives of the other species of Lysimachia +
Anagallis, Asterolinon, Pelletiera and Glaux. The subgeneric classification
and the biogeographical patterns in the group are briefly discussed.
Key words
Anagallis, Asterolinon, Glaux, Lysimachia, Pelletiera, Trientalis, cp DNA,
pollination adaptation, parsimony, phylogeny.
