Originally Posted by Socratic Monologue
No, it is not the same thing.
'Line breeding' is either:
--breeding siblings back to each other over repeated generations,
-- repeatedly, over generations, breeding frogs with a similar phenotypic trait to each other in order to maximize expression of that trait.
Breeding the line e.g. 'leucomelas 1996 import' is not necessarily doing either of those things, because (a) there were more founding stock than 1.1, and (b) you can get other 'leucomelas 1996 import' from other hobbyists that haven't been related for many generations to the ones you have, and (c) you are not trying to increase the expression of any phenotypic trait.
That makes sense at this point when many generation have passed and the pool has gotten bigger but you never know with the original stock size was. People talk about inbreeding in a fruit fly culture and there are a ton of flies in there. From an evolutionary standpoint wouldn't a genetic morph possibly be natural line breeding until the pool gets bigger?
How about the blue foot leucs? I think 20 were imported total and split up between hobbyist. Maybe they will get crossed back up after a few generations but there has to be some line breeding there to get it started.