I really need to decide what I want to breed in the fishroom. I’m going to have to drop a number of lines since I only have room for six color varietites, seven if I colony breed one. I’ve recently added an x-linked HB AOC and HB Red line to the fishroom. I’ve been trying to create a y-linked HB AOC. I’m F3 with them. Breeding them through the x-linked line will definitely give me a jump in improvement. I haven’t seen a really exceptional HB Red line in at least 25 years. Once I saw them, I had to get them.
I always do outcrosses with new lines. I have no idea when the last one was done and, of most importance to me, I want to know the genetic make-up of the new fish. The breeder of the HB AOC’s told me that the best way to outcross these was to set up multiple lines and breed back and forth. Completely outcrossing results in no spots in the dorsal fin and it takes 6-8 generations to get back to where you started. I have placed a blonde Yellow Bi-color female in with the HB AOC male. This breeding accomplishes a couple of things. Non-HB males with HB females means that the line is x-linked for HB. HB males would mean that this particular line is x- and y-linked for HB. The males from the HB AOC line have just a few spots on the dorsal. That indicates that the dorsal spotting is not necessarily linked to either the x- or y- chromosome. The Bi line is x-linked for spotting in the dorsal fin. If I have males from this cross with an increase in the number of spots in the dorsal, this would confirm my theory and I can breed to improve that feature. Non-HB F1 males can be bred back to the Bi-color line to improve it. If I get HB males, I can use them with my y-linked line to make major improvements there. Adding genes from the new HB AOC would create a cross compatible line and I can then add the x-linked gene for dorsal spotting, if needed.
I got the HB Reds this week. One of the females died. To help alleviate some of the breeding pressure, I put a blonde Fullred female in with the HB Red pair. Again, this breeding gives me a couple of answers. Non-HB males with HB females means an x-linked HB line. HB males means x- and y-linked for HB. If I get HB males, I may change the blonde Fullred to blonde HB Red. This would create a cross compatible line while still keeping it compatible with the albino Fullreds.
As of this writing, I have Blue Grass, Red grass (both lines will have the albino gene incorporated into the genotype), x-linked HB AOC, y-linked HB AOC, blonde Fullred, and albino Fullred. I’m working on an AOC Bi-color and blonde Yellow Grass. If I can get my cross compatible lines created, I’ll probably keep the AOC Bi-colors, x-linked HB AOC, y-linked HB AOC, HB Red, blonde Fullred or HB Red, and albino Fullreds. Reds have always been my faves, but they are a bit difficult to keep a good shade of red. That’s my six lines. I’m enjoying working with my Grass lines and it’s even more enjoyable for me to get this AOC Bi line set. I made the initial outcross, chose the F1 breeders and I’m pleased with the F2 results. The best spotted tailed males will be used for the F3′s unless the non-HB males from the HB/Bi cross are better. I have many ways to go with these, but I have to get fry in the tanks first.