New Zealand Journal of Botany abstracts
Phylogeny and biogeography of the Chilean Pseudopanax
laetevirens
ANTHONY D. MITCHELL
Ecology and Entomology Group
Soil, Plant and Ecological Sciences Division
P.O. Box 84
Lincoln University
Lincoln, New Zealand
STEVEN J. WAGSTAFF
Landcare Research
P.O. Box 69
Lincoln, New Zealand
Abstract Nuclear ribosomal DNA sequences are used in
phylogenetic analyses to assess relationships of the Chilean
Pseudopanax
laetevirens. Close relatives of
P. laetevirens are
P. gunnii,
an endemic to Tasmania,
Raukaua species from New Zealand, and
Cheirodendron tryginum from Hawai'i. Analyses suggest that
P.
laetevirens is the sister species to
P. gunnii. The current
distribution of these taxa may be consistent with the movement of continental
plates during the late Eocene or early Miocene.
Cheirodendron may have
had a southern origin and be the result of long distance dispersal to the
north-west
.
Keywords Araliaceae; Pseudopanax laetevirens;
Pseudopanax gunnii; Cheirodendron trigynum; Raukaua;
morphology; phylogeny; ribosomal DNA; Antarctica; New Zealand; Hawai'i; South
America; Tasmania
B99059
Received 30 November 1999; accepted 1 May 2000
PDF file of entire paper: medium quality (376K); (scanned from paper original: notes about this process)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
