Board Thread:Theories and Speculation/@comment-25319479-20171101152711/@comment-25319479-20171102232722

There's a few situations/statements that suggest Yamato was the only person in Konoha who had wood release. Orochimaru automatically knew who Yamato was upon him using Wood Release, despite not physically knowing who he was. This leads us to believe that only the sixty children Orochimaru experimented on could use wood release.

Sure, you could say Moegi hadn't learned it yet, but Jiraiya indicated that Yamato was the only person who had the potential to control a jinchuriki. Even if she hadn't awakened the kekkei genkai yet, she still would have the potential.

If she awakened it naturally, i would assume she's a descendant of the Senju Clan, or the extremely far-fetched idea that another child survived Orochimaru's experimentation and went onto having Moegi soon after.