Journal article
Molecular phylogeny and dating of Asteliaceae (Asparagales): Astelia s.l. evolution provides insight into the Oligocene history of New Zealand
JL Birch, SC Keeley, CW Morden
Molecular Phylogenetics and Evolution | ACADEMIC PRESS INC ELSEVIER SCIENCE | Published : 2012
Abstract
Asteliaceae (4 genera, 36 species) are found on both continents and island archipelagos in the southern hemisphere and across the Pacific. The circumscription of Asteliaceae and intrageneric relationships are poorly understood. We generated a phylogeny including all genera and 99% of the species using DNA sequence data from chloroplast (trnL, psbA-trnH, rps16, and petL-psbE) and nuclear (NIA-i3) regions. Relaxed clock methods were applied to infer the age of the family and the timing of cladogenic events. Generic delimitations change as a result of this study. Collospermum is nested within Astelia and is recognized here only at the subgeneric level. Further, Astelia subgenera Astelia, Asteli..
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Awarded by Explorers Club
Funding Acknowledgements
The authors thank the following individuals and organizations for their support of this research. Access and collection permits and field assistance were provided by the Arthur Rylah Institute for Environmental Research (Victoria, Australia), Auckland Regional Council (New Zealand), Department of Conservation (New Zealand), Department of Environment and Climate Change (New South Wales, Australia), Department of Land and Natural Resources (Hawaii, United States of America). Department of Primary Industries and Water (Tasmania, Australia), Department of Sustainability and Environment (Victoria, Australia), Hawaii Volcanoes National Park (Hawai'i, United States of America), Haleakala National Park (Hawaii, United States of America), O'ahu Army Natural Resources (Hawaii, United States of America), O'ahu Plant Extinction Program (Hawai'i, United States of America), Maui Land and Pineapple (Hawaii, United States of America), The Nature Conservancy (Hawaii, United States of America). Silica-preserved material was kindly provided for inclusion of taxa in the phylogeny by Australian National Botanical Garden, Missouri Botanical Garden, Otari Native Botanic Garden, and individuals J.-Y. Meyer, T. Motley, D. Strasberg, and A. Whistler. Herbarium specimens were provided to the Joseph F. Rock Herbarium by the following herbaria: Auckland War Memorial Museum (AK), Herbarium Pacificum (BISH), Allan Herbarium (CHR), Harvard University (GH), Kew Royal Botanic Gardens (K), National Herbarium of Victoria (MEL), Missouri Botanical Garden (MO), Herbier National de Paris (P), United States National Herbarium (US), and Museum of New Zealand Te Papa Tongarewa (WELT). Funding for field work and sequencing was provided by the American Society of Plant Taxonomists, Explorers Club, National Science Foundation DDIG (DEB-0910402), Sigma-Xi, University of Hawaii Foundation and multiple affiliates of the University of Hawaii at Manoa (UHM) including the Botany Department, Ecology, Evolution, and Conservation Biology Program, Graduate Division, Graduate Student Organization, and the Office of Community and Alumni Relations. This manuscript benefitted from comments of A. Sherwood, D. Lorence, and R. Cowie and two anonymous reviewers.