DP = Doubletail Plakat? I've always known the abbreviation as DTPK.
Anyway, obviously you can't predict 100% what the outcome is and I've never worked with DT unfortunately. However, from what I understand it isn't a dominant gene. It's a genotype that unless crossed with pure DTxDT you will get a random amount of DT through several generations.
As CT is a dominant gene however, there will obviously be some crowning in most of the fry.
So, as a 'off the top of my head' prediction... I'd say you'd end up with the below mixture of fry.
- Long, single finned with crowning (with PK and DT geno)
- Long, finned double tail with crowning
- Short, single finned with crowning (DT gene)
- Short, finned, double tailed with crowning
Presuming the mother is 100% CT and not a cross with something else, the offspring in my opinion would be classed as 50% CT and the other half would be a mixture depending on what fin type the fish actually was.
One thing to remember is that Plakat isn't a tail 'type' as such eg. CT, HM, VT. Its just a word used for short finned fighters and can still show other genes just on a different sized fin.
Hope this makes a little sense It's hard putting it in writing.
And please, anybody feel free to correct me if I'm wrong!