Skip to main content

Phylogenetic analysis and generic limits of the tribe Pomaderreae (Rhamnaceae) using internal transcribed spacer DNA sequences

Buy Article:

$16.27 plus tax (Refund Policy)

Abstract:

The tribe Pomaderreae (Rhamnaceae) currently consists of approximately 180 species in seven genera, endemic to Australia and New Zealand. It is the second largest tribe of Rhamnaceae. We undertook a phylogenetic analysis using internal transcribed spacer (ITS) sequence data from 69 representative species of Pomaderreae and five outgroup taxa. The monophyly of Pomaderreae was confirmed. The clades found in the strict consensus tree are mostly consistent with the currently accepted genera of the tribe. All major clades, except Stenanthemum, received moderate to strong bootstrap and jackknife support. Only the relationship between Siegfriedia and Pomaderris received strong support; relationships between other genera did not receive support above 50%. Taxonomic changes are suggested and a preliminary classification of Pomaderreae is proposed, including the monophyletic genera Cryptandra, Pomaderris, Spyridium and Trymalium. Blackallia and Siegfriedia are monotypic. Two new genera are required: one containing two atypical species of Stenanthemum and the second genus consisting of previously unrelated species from three genera that share a 2-carpellate ovary and a characteristic indumentum. The taxonomic status of Stenanthemum requires further examination. A split of Cryptandra into smaller genera is not supported.

Keywords: AUSTRALIA; ITS; MOLECULAR PHYLOGENY; NEW ZEALAND; POMADERREAE; RHAMNACEAE

Document Type: Research Article

Affiliations: 1: School of Botany, The University of Melbourne, Victoria 3010, Australia; National Herbarium of Victoria, Royal Botanic Gardens Melbourne, Birdwood Avenue, South Yarra, Victoria 3141, Australia 2: National Herbarium of Victoria, Royal Botanic Gardens Melbourne, Birdwood Avenue, South Yarra, Victoria 3141, Australia 3: School of Botany, The University of Melbourne, Victoria 3010, Australia

Publication date: August 1, 2005

iapt/tax/2005/00000054/00000003/art00003
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more