A comprehensive phylogeny and classification of the threatened cycad Cycas (Cycadaceae)

Start date:
01 Jan 2014
End date:
31 Dec 2017
Dr Nathalie Nagalingum
Project sponsors:
Australian Biological Resources Study

Project aims

  • Generate the first completely sampled phylogeny of the genus Cycas; 
  • Provide a new infrageneric taxonomy of Cycas, and 
  • Assess the phylogenetic position of 13 subspecies described in fve species


Project Summary

With 107 species, Cycas is the most diverse and widespread of all the cycad genera. There are 30 species in mainland Australia, all of which are endemic, and five of these are endangered or vulnerable. To assist in the conservation of this iconic but threatened group, a modern phylogeny and classification are needed. For this project, we will generate DNA sequence data for all species and 13 subspecies in 5 species. Morphological characters for all taxa will be reviewed and together with the molecular phylogeny, these data will be used to produce the first comprehensive infrageneric classification for the genus.