In one of my stories, there's an alien species that are all female and are able to conceive through pathogenesis but I know this generically creates and an otherwise natural-born clone of the mother but I don't know if this method of reproduction will ultimately stagnate and pollute the gene pool or if there's a chance a natural beneficial mutation will cause necessary developments of diversity to carry on.
Of course, in the more recent days, the aliens have the technology to genetically combine DNA from two female parents but getting that far in their evolution timeline would need to be important.
The species are mammals, humanoid and like us, have evolved from their variation of apes, they have a highly advanced civilization developed to the point they're warp-capable (while humans are still in caves)
They also have unique super-power abilities that were a result of other alien interference early in their ancestors which adds more wonder to the chances of diversity and chanced of mutation in that regard as well; these 'gifts' are activated later down the line when they're older from genetic markers passed down from woman to child. I remain uncertain on if the markers change to give unique powers or if they'd inherit their mother's powers (this is more background information but necessary).
So, this brings me back to the question, is it likely that an all-female species would be able to thrive into advancement and vivid diversity of genetics and abilities or would they ultimately be bottle-necking themselves long before that?