Phylogeny and Biogeography of Tribe Hibisceae (Malvaceae) on Madagascar

$23.00 plus tax (Refund Policy)

Buy Article:

Abstract:

Madagascar boasts a substantial radiation within Hibisceae (Malvaceae). Molecular data were used to determine the number of migrations to Madagascar, to clarify the timing of these radiations, and to assess the relationships among the endemic taxa. Sequences of matK and ndhF were obtained for representatives of all the Malagasy endemic genera in Hibisceae, as well as representative Malagasy species of Hibiscus and Kosteletzkya. Phylogenetic analysis of these data along with a sampling of outgroups and other major lineages of Hibisceae strongly supported the existence of an exclusively Malagasy clade, the /Megistohibiscus clade, which is sister to the rest of tribe Hibisceae. Humbertiella, Megistostegium, Perrierophytum, all the Malagasy Kosteletzkya, and a number of endemic species usually placed in Hibiscus are members of /Megistohibiscus and appear to be derived from a single introduction to Madagascar in the mid Miocene. Other sampled Malagasy Hibisceae, including the endemic genera Helicteropsis, Jumelleanthus, and Macrostelia, were resolved as members of the /Euhibiscus clade, implying at least one additional dispersal to the island.

Keywords: BIOGEOGRAPHY; HIBISCEAE; MADAGASCAR; MALVACEAE; MATK/NDHF; MOLECULAR DATING

Document Type: Research Article

DOI: http://dx.doi.org/10.1600/036364408784571653

Publication date: April 1, 2008

More about this publication?
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