Barbara Walters' Daughter -- Arrested For DUI

Barbara Walters' daughter -- whose troubled childhood was chronicled in Barbara's biography and in several TV specials -- was arrested for DUI in Florida on Sunday, TMZ has learned.

According to the Collier County Sheriff's Office, 44-year-old Jacqueline Danforth was popped near Naples, FL. The details surrounding the arrest are unclear.

It's an especially sad story considering Jacqueline made a public vow to get her life on track, following some turbulent teenage years filled with clubbing and substance use.

In fact, Jackie ran a wilderness program for troubled girls in northern Maine for years ... but it appears to have closed in 2008.

FYI -- Jacqueline was adopted as an infant by Walters and then-husband Lee Guber in 1968 -- before divorcing in 1976.

As for the DUI arrest, the Collier County Sheriff's Office website says she's been released from custody on $1,000 bond.