DSON Importer Plugin
Poser does not have native support for Genesis, Genesis 2 Female, Genesis 2 Male, Horse 2, and other figures that use triax-weight mapping. In order to use these products in Poser, it's necessary to install the DSON Importer Plugin. This plugin is sold separately and supports Poser 9 sr3, Poser Pro 2012 sr3, Poser 10, and Poser Pro 2014. Without the plugin, Genesis, Horse 2, and Genesis 2 figures will not work in Poser.
DSON Importer for Poser
http://www.daz3d.com/dson-importer-for-poser
At the time this article was written, DAZ 3D offered the DSON Importer plugin free, if you place the above product into your card along with $20 or more of DSON Importer plugin compatible content, then you should get it free with your paid order. For more questions about this or if you've already purchased $20 or more of DSON Importer plugin compatible content, please contact DAZ 3D sales department through Zendesk.
For technical help with DSON Importer plugin, please see this article:
https://helpdaz.zendesk.com/entries/22997087-DSON-Importer-Basic-Installation-Tips