Phylogenetic relationships in the species-rich Irano-Turanian genus Alcea (Malvaceae)

$16.80 plus tax (Refund Policy)

Buy Article:

Abstract:

The genus Alcea (Malvaceae) includes approximately 50 species of mainly Irano-Turanian distribution and is considered one of the most challenging genera of the Middle East, due to its uniformity and pronounced plasticity in morphological traits. Here, using three molecular markers (nrDNA ITS and the plastid spacers psbA-trnH and trnL-trnF), we present a phylogeny of Alcea and test previous infrageneric taxonomic hypotheses as well as its monophyly with respect to Althaea, a genus with which it has often been merged. We additionally discuss morphological variation and the utility of morphological characters as predictors of phylogenetic relationships. Our results show that while molecular data unambiguously support the circumscription of Alcea inferred from morphology, they prove to be of limited utility in resolving interspecific relationships, suggesting that Alcea's high species diversity is due to rapid and recent radiation. Our work provides the first phylogeny of Alcea and aims to set the scene for the study of processes underlying species radiation in the Irano-Turanian region, a main centre of species diversity for many medium-sized to large genera that remains greatly understudied.

Keywords: ALCEA; IRANO-TURANIAN FLORISTIC REGION; MALVACEAE; MOLECULAR PHYLOGENY; MORPHOLOGICAL PLASTICITY; SPECIES RADIATION

Document Type: Research Article

Affiliations: 1: Department of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, 1030 Vienna, Austria 2: Department of Biology, Al-Zahra University, Deh-e Vanak Street, 19938-91176 Tehran, Iran 3: Institute of Botany, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria 4: Department of Biodiversity and Conservation, Real Jardín Botánico de Madrid, CSIC, Plaza de Murillo 2, 28014 Madrid, Spain

Publication date: April 13, 2012

Related content

Tools

Favourites

Share Content

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