BMC Genomics has issued an expression of concern regarding a 2011 article on an adaptive role for subfunctionalization in modulating the effect of gene dosage, Retraction Watch reports. According to a statement from the journal, one of the institutions to which first author Ariel Fernandez was affiliated found that the data he generated was not reproducible while a second institution he was associated with did not find anything wrong with the methods or data. "Given the conflicting conclusions of these investigations, the Editors advise the readers to interpret the data with due caution," the statement says.
Retraction Watch notes that Fernandez was affiliated with the National Research Council of Argentina, the University of Chicago, and the Morgridge Institute for Research in Wisconsin.