The P{EP}vig^EP812 insertion maps within the vig coding region, which results in a severe reduction in the level of vig protein relative to wild type (see FBrf0208478). The insertion also maps within the intron between the first and second exons common to vas and solo (since vig lies within this intron). The insertion also appears to affect vas function, since it is female sterile in combination with vas³ (see FBrf0111326). It is not known whether or not solo function is affected by the insertion ( date:2015.04.14 ).