Journal article

Genetic structure of Gahnia radula (Cyperaceae), a key sedge for revegetation

Alex Arnold, Andrea Kodym, Nancy M Endersby-Harshman, John Delpratt, Ary A Hoffmann

Australian Journal of Botany | CSIRO Publishing | Published : 2017

Abstract

Genetic studies can help guide effective ecological restoration by identifying potential source populations that contain the genetic variation necessary for adaptive potential, based on past landscape processes. Here we investigate genetic patterns in Gahnia radula (R.Br.) Benth., a sedge from south-eastern Australia that has potential for revegetation of disturbed areas. We developed microsatellite markers for this species and used them to show that it propagates mostly in a clonal manner. Levels of genetic variability differed between populations and the spatial scale of this variability within these populations is identified. A population used in recent restoration efforts and which sets ..

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Grants

Funding Acknowledgements

We thank Elise Jeffery from Alcoa World Alumina for enabling the collections at Anglesea, James Wood from the Royal Tasmanian Botanical Gardens for providing the Tasmanian samples as well as David Carew and Rob Dabal from Melbourne Water for their valuable discussions. Thanks to Philippa Griffin and Jess M'baya for intellectual input at the beginning of the study, Debra M<SUP>c</SUP>Keown for initial collections, and Nick Bell for graphics. The project was partially funded by Alcoa. The authors confirm that they have no conflict of interest to declare.