Quote:You'll pull a deeply recessive out more easily with trait XXX
This is only Conditionally true. For this to be true, XXX **must** be more recessive than the 'deeply recessive' goal. If XXX is dominant to your goal, the statement is provably false.
The point of this thread ...
Take two traits, say Foxie Salt and Pepper and Snowshoe Cream, as an example.
Say, for the sake of argument that Showshoe Cream is the current True Recessive (I know, we think it is .. TODAY .. but, in a few months, it won't be).
And, say, also for the sake of argument that Foxie Salt and Pepper is only one step more dominant. That is, there are no other furs between the two.
Now, say we see a Foxie Salt and Pepper and we're pretty sure it hides Snowshoe Cream. Why? Well, we check the Pedigree and one parent was a Snowshoe Cream. Foxie Salt and Pepper must have come from the other parent (since it can't hide behind Snowshoe Cream). The Foxie Salt and Pepper we're looking at can hide nothing other than Showshoe Cream since there is nothing else the Showshoe Cream could hide.
The point of this thread is that, if the Foxie we're looking at is the ONLY "carries Snowshoe Cream" we have or can obtain, it is IMPOSSIBLE for us to produce Snowshoe Cream as a direct offspring.
And, it is LIKELY (not impossible, but very, very likely) that we will be unable to produce Snowshoe Cream by back-breeding any box to the Foxie parent OR by crossing offspring to offspring.
And, to make matters worse, if we fail, as we're likely to, the odds STRONGLY FAVOR the Snowshoe Cream genetic material will be COMPLETELY LOST and it will forever be impossible to produce the fur unless we purchase new genetic material.
Yes, you can beat the odds and succeed with just one "hides Cream" producing a "shows Cream" in the second generation.
But, if you fail you likely have NO recourse. Your failure is TOTAL. Not only did you not get it, you NEVER can get it.
Yes, you can still beat the odds and succeed in a subsequent generation.
But, with each generation is is AT LEAST 4 times more likely you'll TOTALLY FAIL and can NEVER SUCCEED in the next.
If, however, you start with a more dominant "hides Cream" you DO have recourse down the generations. Depending on how dominant you started with, it is possible you can go 70 or more generations before you get to the "S&P hides" point and run the risk of total failure.
And THAT is the point of this thread .. that, AS A PURCHASER, it it FAR WISER to purchase a more dominant "hides Cream" than it is to purchase a "Salt and Pepper hides Cream"