Boa Genetics and 'Outcomes' - Albino, Anery & Hypo - Hets, Visuals and Supers

[Dexter]

Don't worry, I was just being lazy.

Just done the punnet square and came up with:

25% of NaNN (normal het albino)
25% of NaNm (motley het albino)
25% of aaNN (albino)
25% of aaNm (motley albino)

Cheers and beers.

[mikerichards]

Quick Q..

If you have a hypo to a hypo do you not get 100% hypos in the litter, with it being a co dom?

[bothrops]

Originally Posted by mikerichards

Quick Q..

If you have a hypo to a hypo do you not get 100% hypos in the litter, with it being a co dom?

No.

The hypo to hypo mating is exactly the same as a het albino to het albino mating. i.e. they are both het to het.

Say hypo = H'
normal = H

Then hypo is H'H and super hypo is H'H'

In a hypo x hypo they parents are H'H and H'H

1/4 of each offspring get a H' from mom and a H' from dad (H'H' = super)
1/4 of each offspring get a H' from mom and a H from dad (H'H = hypo)
1/4 of each offspring get a H from mom and a H' from dad (HH' = hypo)
1/4 of each offspring get a H from mom and a H from dad (HH = normal)

This is, overall - 25% super, 50% hypo and 25% normal


this is identical to a het albino het albino mating except in this case you can visually SEE the het form (hypo) and so there is no need for 66% het offspring labels

On the other hand a super H'H' to a normal HH give 100% hypo (H'H) as each parent only has one type to give!

(which is the same as an albino to a normal giving 100% hets!)

Cheers

Andy

[paulh]

Originally Posted by bothrops

This is, overall - 25% super, 50% hypo and 25% normal


this is identical to a het albino het albino mating except in this case you can visually SEE the het form (hypo) and so there is no need for 66% het offspring labels

However, from what the people on the kingsnake.com boa forum say, many H'H' hypos cannot be distinguished from H'H hypos. So you can lump all the hypos from that mating together and say that they are 66% probability H'H (het) hypos and 33% probability H'H' (homozygous) hypos.

[mikerichards]

Thanks for that, was clearing up a sunglow het anery to ghost het albino pairing, I did see the results in the first page, and I apologise for questioning your boa godliness.

[chris25]

how about this one....

albino x hypo het anery poss het albino

[bothrops]

Originally Posted by chris25

how about this one....

albino x hypo het anery poss het albino

either...

50% hypo 100% het albino 50% poss het anery
50% normal 100% het albino 50% poss het anery

if the hypo turns out not to be het albino

or...

25% normal 100% het albino 50% poss het anery
25% hypo 100% het albino 50% poss het anery (AKA dbl het sunglow poss triple het moonglow)
25% albino 50% poss het anery
25% sunglow 50% poss het anery

if the hypo turns out to be het albino.


Basically the 'poss het albino' means it either is or it isn't, whichever litter you get from the above two will prove the adult one way or the other (i.e. a single visual albino in the litter will prove out the adult hypo as a 100% het!)



Cheers


Andy

[dazook]

What a great chart and a fantastic thread...

Was just about to post asking all this type of stuff then saw the sticky...

[chris25]

what would result with an albino - triple het moonglow pairing?

and an albino - poss triple het moonglow?

[bothrops]

Originally Posted by chris25

what would result with an albino - triple het moonglow pairing?

and an albino - poss triple het moonglow?

OK, the 'poss' bit just tells you that it has a chance of carrying the genes. It either does or it doesn't. You CAN'T predict the outcome of a 'poss het' breeding. You have to work out a what it would be if it was het and what it would be if it wasn't het. The litter you get will tell you the ACTUAL genetics of the snake.

Therefore I'll just do the first one (as a normal to albino will have been done earlier in the thread)

albino x triple het moonglow

25% normal
25% hypo
25% albino
25% sunglow

all of the offspring would be considered 50% possible het anery.
(this of course means that they either ARE het or AREN'T het but you won't be able to tell; as each of them has a 50% chance of being het anery and a 50% chance of not being het anery)


Cheers

Andy
50% normal