Dear Arvind,
MorphoJ allows you to map shape variation across multiple taxa onto an
existing phylogenetic tree. So, you need to either use a published
phylogeny of your taxa (e.g. accessioned in TreeBASE or Dryad, or from the
authors) or reconstruct your own phylogenetic hypothesis of evolutionary
Arvind,
The NEXUS format is used to represent phylogenetic trees, on which MorphoJ
will map your shapes. You don't prepare 2D data in NEXUS format, as the
software does not compute phylogenetic trees itself, See the MorphoJ
documentation (
http://www.flywings.org.uk/MorphoJ_guide/frameset.htm?ind