Whenever you out-cross two strains that have blue and albino in the strain names you create the potential for the appearance of the white body albino. All of the white albino guppies I have created have some shade of blue in their fins. I have spent many hours trying to produce a white-bodied albino with any other color except blue and have never succeeded. In fact I still have not decided if the white body albino is an attractive phenotype.
Is the white bodied albino AZ's nod to a mutation? I think it is. That's all I care to say about the subject at this time. What do you think?
To set up an out-cross that might possibly produce a white bodied albino I have selected to use a male from the "Albino Christmas Red" strain (which I also suspect contains the gene for the snakeskin tail pattern) and a female from the "cobra tux tiger multi electric blue" strain. We will loose the cobra body pattern with this combination as only male cobras can pass on the gene for the cobra body pattern (an example of a male sex-linked trait). The tux body pattern can be retained in this cross, if we search for the "right female" in the F2 and F3 generations (an example of a female sex-linked trait).
Here are the males produced by the selected pair in the F1 generation.
Whew, they all look alike. A very interesting and unique F1 generation. I would have expected leopard but AZ gave us grass (you just never know with mother AZ). The multi pattern is typical of many F1 generations. Wonder what surprises AZ has in store for us in the F2 generation?
We have six identical males and four females. The sibling pairs possible in this brood would be to mate each female with all six males. My very limited "in my head" math skills leads me to believe that 24 F1 generations could be produced with this approach (6 males x 4 females = 24). I pick five as the number of F1 generations I want to produce to check out this gene pool. (I have a hunch this out-cross will offer us many phenotypes to isolate and hopefully stabilize. However, we are looking for the white albino.) Five randomly selected pairs produced these F1 generations.
Batch F02a:
Interesting but nothing real special, IMHO.
Batch F02b:
Nice assortment.
Batch F02c:
Nice albino tux in this batch. If we are searching for white albino, he might just lead us to it.
Batch F02d:
Look at the color intensity on the albino tux male! I will definitely check him out at a later time.
Batch F02e:
Another really nice albino tux male with great color intensity.
My intuition tells me that the male in the F2c batch is our best bet to possibly find a white albino. Let's mate him with his three albino sisters and see what we find in those F3 generations. Don't forget we also have to find the females that are tux in order to retain the tux trait in future generations.
Batch F3a:
My hunch was correct. Here we see two white albino males (but they are non-tux). Now where did they come from? AZ says, "sudden unexpected changes are called mutations". AZ goes on to say "there are gene mutations'
and chromosome disorder' mutations". I've got no clue what those terms mean.
Batch F03b:
What a gorgeous batch this is! The sister used to produce this batch was a tux female. All of her sons are tux. This group will definitely be saved for later exploration.
Batch F03c:
Again we see white albino and a spectacular snakeskin multi in an interesting color of salmon. This batch is a definite "must save" even if we will have to do the "right sister" search routine looking for a tux female in the F4 generation.
I elect to use batch F3a to produce the F4 generation. There are more tux males in the F3a batch leading me to believe that more of the females are also tux. I am hoping to find a white albino tux male. Seems to me that one should be in there. (OK guys, where did you hide your tuxedos?)
Here things got goofy. There were five females in the F3a. Mating all five of the females with both of the white albino males produced batches that had all tuxedo males except when white albino males were present. If no white albino males were in the batch then all the males were tuxedos. If a white albino was in the batch all the brothers were tux, but the white albinos were non-tux. (Can you follow that? I told you things got goofy.)
Here are two of the F4 generations produced.
Batch F4e:
My handy dandy utility for finding a name for colors says these guys are "turquoise pistachio green". They are all tuxedos.
Batch F4g:
See all the males are tuxedos. And there is that gorgeous salmon snakeskin again. (I've gotta go back and stabilize that phenotype.)
Up to now I have always thought that if a proven tux female was paired with a non-tux male then all of her male sons would be tuxedo. I had proven that all the females can produce 100% male tuxedo sons, if no white albino males were present. What gives? Is this what AZ means by "chromosome disorder"? Curiosity leads me on to the F5 generation. Choosing a non-multi male from the F4e and pairing him with one of his sisters three times produces F5 generations with the same puzzle. If I see tux I don't see white albino, if I see white albino they are non-tux. Fry from a pair of proven tux should all be tux. I can prove the females are tux, except when they throw white albino males. I know white albino tux is possible. I have several stabilized strains of white albino tux on file. This should not be happening unless it is an example of "chromosome disorder". Well, well, well. Documentation of "chromosomal disorder" is now in progress.
Here are the males from the F5c batch. (The F5a and the F5b batches were from the same pair and all the males were tuxedo, but none were white albino.)
Yep, this must be an example of "chromosome disorder" genetic mutation. A non-tux male from proven tux parents. Yep, yep, yep, that's gotta be what is going on, IMHO. What do you think?
I select the non-tux male to produce an F6 with one of his sisters.
The F6 generation:
Well, these guys all look alike. Wonder what a pair from this generation will produce for the F7?
The F7 generation:
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