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Abstract Detail


Biogeography

Clark, John [1], Bramley, Gemma [2], Atkins, Hannah [3], Wagner, Warren [4].

Towards a comprehensive phylogeny, biogeographic hypothesis, and revised taxonomy for Cyrtandra (Gesneriaceae): recent progress and continuing challenges.

The paleotropical-Pacific angiosperm genus Cyrtandra (Gesneriaceae), with over 600 species, has proven a challenge for botanists since its discovery in 1776. Recent phylogenetic studies indicate that rapid lineage radiations and potentially in situ hybridization complicate efforts to understand this genus. A robust, genus-wide phylogenetic and biogeographic hypothesis is required to better understand speciation and to revise existing, inadequate taxonomy. To this end, a multi-institutional collaboration has been formed to pool resources, fieldwork, and expertise in completing this goal. Broad scale sampling across Southeast Asia and the Pacific has been conducted with moderate to high species sampling in Indonesia, Solomon Islands, Vanuatu, Fiji, Samoa,Tonga, Niue, Micronesia, Marquesas, and Hawaii. Relatively few samples have been collected from New Guinea and the Philippines posing serious challenges in completing a genus-wide evolutionary hypothesis. Current phylogenetic hypotheses are presented based on ITS, ETS and psbA-trnH genic sequence data. Ongoing and future efforts are also discussed.

Broader Impacts:


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1 - Catalina Island Conservancy, PO Box 2739, Avalon, CA, 90704, USA
2 - Royal Botanical Gardens Kew, UK
3 - Royal Botanical Gardens Edinburgh, UK
4 - Smithsonian Institution, Botany, MRC-166 National Museum Of Natural History, PO Box 37012, WASHINGTON, DC, 20013-7012, USA

Keywords:
none specified

Presentation Type: Oral Paper:Papers for Topics
Session: 05
Location: Lindell A/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 9:30 AM
Number: 05005
Abstract ID:586


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