The content of the "Dataset citation provided by the publisher" depends on the metadata supplied by the publisher.
In some cases this may be incomplete. A standard default form for citing is provided as an alternative.
We are in transition towards providing more consistent citation text for all datasets.
Dataset citation provided by publisher
Tomato Genetics Resouce Center, UC Davis
University of California, Davis:
Database Schema for UC Davis [TGRC].
Accessed via http://www.gbif.org/dataset/84df0fea-f762-11e1-a439-00145eb45e9a on 2015-03-30