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What would happen if?

Nechushtan Aug 31, 2003 06:42 PM

Just curious on what would be the probable outcome of breeding a Leucistic Pine to a Black Pine? Has anyone tried this? Does it take the last of the patterning out of the Blacks or somehow lighten them up? Just curious.

Ron

Replies (4)

nz Aug 31, 2003 08:41 PM

Maybe that's what the Piebald Black Pines that were going around were! Could be, you never know.

vvvddd Aug 31, 2003 10:17 PM

The F1 offspring would all be heterozygotes and would look like a normal Black/southern pine hybrid (which in itself will tick a bunch of people here off). The F2 offsbring (het to het breeding) would have some mixture of normals, some hets, and some leucistics which would be solid white and look just like the normal southern leucistic (besides any scale differences between the two ssp).

May as well just breed pure leucistic southern pines because they'll just look the same as any other.

Van

nechushtan Aug 31, 2003 10:54 PM

OK... Now I'm a bit confused as to what constitues "Hybrid" and what constitutes "Morph". Aren't the variant Bull snake "Morphs" from breeding different specimens with different traits much like breeding a Black Pine to a Leucistic Pine? I really appreciate the answer given but I really am quite new to this and trying to figure out what's what...

Thanks,
Ron

vvvddd Sep 01, 2003 06:08 PM

As far as I know, most of the bullsnake "morphs" (as in all morphed species) are descended from wildcaught individuals of the same species and subspecies- they were all bullsnakes, Pituophis catenifer sayi. All morph refers to is genetic variation from normal wild-type (ie albino, anerythistic, hypomelanistic, leucistic, etc.). The possibility is there for any snake to have these mutant genes.

What you suggest is breeding a leucistic southern (probably) pine- Pituophis melanoleucas mugitus- to a normal black pine- Pituophis melanoleucas lodingi. This is hybridization because these subspecies do not have a large range of intergradation and the chances of a leucistic southern breeding with a normal black in the wild are virtually nill.

Now if you happened to find a true leucistic black pine and bred it to a normal black pine, you would get all hets for leucistic- they would all look like normal black pines. If you bred the hets you would again get a mixture of normals (hets and non-hets) and leucistic black pines. There is no "middle ground".

Van

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