I'm interested in that too, I'll check the links. Some time ago I found this on nature news:
Evolved DNA stitches itself upPhilip Ball
Could DNA have kick-started life on Earth instead of RNA?
Researchers have managed to create bits of DNA that can stitch themselves together without a helping hand from other molecules. By contrast, natural DNA needs enzymes to stitch itself up, correct mutations, or make copies of itself.
The creation of this super-capable DNA suggests that rare bits of natural DNA might have evolved the same capability in the past. That could alter our thinking about how life began.
Nature News & Comment
The site requires a free registration to see the news.
If i understood it right, abiogenesis this way would be the same hipercycle thing, but with DNA. Then later RNA would assume some functions of this DNA I guess, dividing the task of replication.
I don't understand much of that to have an opinion in whether would be more likely, DNA or RNA... I guess that RNA is more common, but in the other hand DNA is more stable...
™ Version 4.2