Software tool for the reconstruction of cophylogenies. CoRe-PA is a tool for reconstructing the coevolutionary history of host parasite systems. As Tarzan it uses an event-based method to find cost minimal reconstructions. These events are cospeciation, sorting, duplication and (host) switching.

CoRe-PA Features:
1. design host parasite scenarios with a graphical editor
2. generate random coevolutionary scenarios using the beta-split model with beta 0, -1 or -1.5
3. generate random coevolutionary scenarios by simulating coevolution
4. generate random coevolutionary scenarios which "keep the character" of given host parasite systems
5. handle non-binary host and parasite phylogenies
6. choose between different behaviors of how to handle switches
7. use divergence timing information
8. compute the best reconstructions for a given set of costs
9. compute the best cost vector for a given host parasite system (where the cost vector fits best to the reconstructed event frequencies)
10. do randomization tests for given host parasite systems to analyze the probability of coevolution
11. export host parasite scenarios and their reconstructions to svg

CoRe-PA is an Eclipse RCP application. You don't need to install the software. Just unzip the archive to a local folder and run the core-pa executable. Java 1.5 or later has to be installed on your system.

Requirements:
* Java Runtime 1.5 or later has to be installed on your system.

The license of this software is Freeware, you can free download and free use this calculator software.