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Abstract Detail


Systematics Section

Spalink, Daniel [1], Mosher, Kyle [2], Davis, Corey [1], Faden, Robert B. [3], Evans, Timothy M. [1].

A Preliminary Phylogenetic Analysis of the Genus Aneilema (Commelinaceae) based on chloroplast-encoded matK and rps16 sequences.

Molecular phylogenetic studies using the chloroplast-encoded matK and rps16 genes are underway to examine relationships among species of Aneilema and to clarify the relationship of Aneilema to other genera in tribe Commelineae, particularly Pollia and Rhopalephora. The genus Aneilema consists of 64 species in seven sections, distributed primarily in tropical Africa and Australia. The species sampled to date represent all seven sections plus A. brasiliense whose generic position was considered uncertain. Aneilema brasiliense is found to fall outside of the rest of Aneilema and is either sister to Pollia or to a Pollia/Aneilema clade. The basal grade of Aneilema consists of species of two sections, the Australian sect. Aneilema and African sect. Amelina. Amelina appears to be polyphyletic but the support is weak. Strong support is found for the monophyly of sect. Brevibarbata, based on two West African forest species. Moderate support is also found for a sister relationship between the East African sections Lamprodithyros and Rendlei, both of which comprise species with glabrous stamen filaments. Rhopalephora is found to belong within Aneilema. The inclusion of Rhopalephora within Aneilema and the exclusion of A. brasiliense from the genus would render Aneilema monophyletic.


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1 - Grand Valley State University, Biology Department, 1 Campus Drive, Allendale, Michigan, 49401, USA
2 - Hope College, Biology, 35 East 12th Street, Schaap Science Center, Holland, MI, 49423-9000, USA
3 - Smithsonian Institution, Department of Botany MRC 166, National Museum Of Natural History, Po Box 37012, Washington, DC, 20560-0166, USA

Keywords:
none specified

Presentation Type: Poster:Posters for BSA Sections
Session: P1
Location: Event Tent/Cliff Lodge
Date: Monday, July 27th, 2009
Time: 5:30 PM
Number: P1SP011
Abstract ID:828


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