No. At NATPE, they're marketed as one entity, despite some Central markets having the shows on competing stations. There is even a compact "Wheel of Fortune and Jeopardy!" logo that affiliates can use.
Also, if anything, Wheel would be the "parent" of the two, because J! was only revived for syndication because Wheel was such a success right from its first season, so Merv Griffin saw this as an opportunity to revive J! and make it a companion program. Remember that the very first incarnation of J! was cancelled by NBC in 1975 and Merv created Wheel to replace it. Jeopardy! would not be around today if it weren't for Wheel of Fortune.