An alpha version of the ITS reference database for use with QIIME was released this week as part of the QIIME team development. There are more details on the release and how to obtain it from the project’s post here.
Please note that this is an Alpha release and may not be completely consistent, but the team wants to make something available now to give people a starting DB for use of QIIME and ITS data. Parameters will need to be modified from the defaults, so watch the QIIME space, and we are working on a best practices document in the lab here to help ease the training in this.
All the data are also in a github repository and this is built starting from the database provided and curated by the UNITE team. I love that the data are getting version controlled here so it is easy to look at versions and revisions.