I have the following tree:
\documentclass{article}
\usepackage{qtree}
\begin{document}
\Tree [.A [.a ] [.B [.A ] [.a ] ] ]
\end{document}
and I would like the A -> B -> A skeleton to be a straight line (meaning, the angle between the branches should be different, so that A -> B -> A goes straight down).
Also, I would like to have a dashed curvy line connecting between the two "a"s. Are those two things possible?
(I don't mind using tikz-qtree instead if needed.)