Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Phylogenetic analysis of Australian species of Veronica ( V . section Labiatoides ; Plantaginaceae)

Phylogenetic analysis of Australian species of Veronica ( V . section Labiatoides ; Plantaginaceae) Phylogenetic analyses of DNA-sequence data have revealed that the southern hemisphere species of Veronica are derived from within the northern hemisphere Veronica clade. Previous analyses focussed on the species in New Zealand and included at maximum 7 of 23 species of section Labiatoides from Australia. In the present study, we used nuclear ribosomal-ITS and plastid ndh F– rpl 32-spacer sequence data of all species currently recognised in Australia to analyse phylogenetic patterns. Most importantly, herbaceous species from coastal calcareous sands or limestone habitats do not form a clade with those from shady, moist forest habitats, as formerly believed, but seem to be independently derived from woody species. Incongruence between results from nuclear- and plastid-DNA markers suggest hybridisation to be an important factor in the evolution of the group. Our sample of V. parnkalliana included alleles similar to V. decorosa and V. novae - hollandiae at both loci, which suggests a hybrid origin. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australian Systematic Botany CSIRO Publishing

Phylogenetic analysis of Australian species of Veronica ( V . section Labiatoides ; Plantaginaceae)

Loading next page...
 
/lp/csiro-publishing/phylogenetic-analysis-of-australian-species-of-veronica-v-section-h006ZPILQ2

References (41)

Publisher
CSIRO Publishing
Copyright
CSIRO
ISSN
1030-1887
eISSN
1446-4701
DOI
10.1071/SB12014
Publisher site
See Article on Publisher Site

Abstract

Phylogenetic analyses of DNA-sequence data have revealed that the southern hemisphere species of Veronica are derived from within the northern hemisphere Veronica clade. Previous analyses focussed on the species in New Zealand and included at maximum 7 of 23 species of section Labiatoides from Australia. In the present study, we used nuclear ribosomal-ITS and plastid ndh F– rpl 32-spacer sequence data of all species currently recognised in Australia to analyse phylogenetic patterns. Most importantly, herbaceous species from coastal calcareous sands or limestone habitats do not form a clade with those from shady, moist forest habitats, as formerly believed, but seem to be independently derived from woody species. Incongruence between results from nuclear- and plastid-DNA markers suggest hybridisation to be an important factor in the evolution of the group. Our sample of V. parnkalliana included alleles similar to V. decorosa and V. novae - hollandiae at both loci, which suggests a hybrid origin.

Journal

Australian Systematic BotanyCSIRO Publishing

Published: Oct 10, 2012

There are no references for this article.