Of the 4 genes targeted by F mt-sncRNAs that could be annotated (i.e. Fanconi Anemia Complementation Group E [FANCE], Krüppel associated box [KRAB], and Nucleoporin 155) and followed patterns expected under RNAi (i.e. significant upregulation in males), we were unable to determine any biological functions potentially relevant to feminization. Here, NUP155 is linked to Fanconi anemia.