Journal article

Phylogenetic analysis of Zieria (Rutaceae) in Australia and New Caledonia based on nuclear ribosomal DNA shows species polyphyly, divergent paralogues and incongruence with chloroplast DNA

Rosemary A Barrett, Michael J Bayly, Marco F Duretto, Paul I Forster, Pauline Y Ladiges, David J Cantrill

Australian Systematic Botany | CSIRO PUBLISHING | Published : 2018


This study presents a phylogeny of Zieria Sm. (Rutaceae) based on sequences of internal transcribed spacer and external transcribed spacer regions of nrDNA, and using Neobyrnesia suberosa J.A.Armstr. as the outgroup. The phylogeny includes 109 samples, representing 58 of the 60 currently recognised species of Zieria, with multiple accessions of most. Ten species were resolved as monophyletic on the basis of two, or in one case four, samples. Monophyly of four species was neither supported nor rejected, and all other species with more than one accession were resolved as polyphyletic or paraphyletic. Results showed that divergent paralogues of nrDNA are present in some individuals, although th..

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Awarded by Australian Research Council

Awarded by Bush Blitz PhD Research Supplement

Awarded by Australian Biological Resources Study

Funding Acknowledgements

For assistance with field work or provision of specimens, we thank Erin Batty, Gillian Brown, Paul Carmen, Mike Mathieson, David Meagher, Tundra Morscheck, Jerome Munzinger, Daniel Ohlsen and Zoe Smith. Plant-collecting permits were provided by the Victorian Department of Sustainability and Environment, New South Wales National Parks and Wildlife Service, Queensland Environmental Protection Agency, Royal Botanic Gardens Melbourne, Australian National Botanic Gardens, the Australian Department of the Environment, and conservation authorities of the North Province of New Caledonia (DDEE). We thank the directors of BRI, MEL and NSW for specimen loans and for permission to destructively sample material for molecular analysis. This study was funded by the Australian Research Council (LP0776737), a Bush Blitz PhD Research Supplement to R. Barrett (BBC210-24), grants from the Australian Biological Resources Study (PD208-02; RFL210-17), and was supported by the Alfred Nicholas Fellowship, The University of Melbourne School of Botany Foundation, the Australasian Systematic Botany Society (Hansjorg Eichler Scientific Research Fund Grant), The Soroptimist International of the South West Pacific (Dame Margaret Blackwood Soroptimist Scholarship) and an Australian Post Graduate Award.