Corn breeding info

[rynwilliams]

I currently have a intermontana corn snake, i am looking to get a anery corn that is het for pewter, does any body have any sort of idea what colouration i might get if i bred the pair.

[Tim_Cranwill]

Ok, assuming "intermontana" is a locale and not a morph, you'd get all of the babies het anery and 50% possible het pewter.

If "intermontana" is a morph, (sorry, not too up on my corn morphs these days ;)) you'd get all double het anery/intermontana, 50% possible het pewter.

Now, if either of your two snakes are het for what the other is, you'd get half of the babies being that common trait and all would be 50% poss het pewter. If your intermontana is het pewter, you'd get 25% of babies being pewter and the rest normals het anery...

Sorry, I might not know enough about the intermontana trait/locale to accurately answer this question but I thought I'd give it a try anyway. I'm mostly just assuming that it is a locale and not a genetic trait such as anery, amel and etc....

[Invictus]

To summarize what Mr. Cranwill said, BOTH parents have to carry the same recessive gene in order for the babies to show the particular color morph you are going for. Otherwise, they simply pass the recessive gene to the offspring, who look normal.

[vanderkm]

I was under the impression that intermontana was a variant of Great Plains Ratsnake rather than cornsnake - based on geographic distribution - but haven't seen much info on them. As far as I know the typical color of these is dominant - just like normal corn color although it doesn't have the intensity of red tones so would appear almost anerythristic. Would be great if you could share photos of your intermontana variety.

The results of the cross would be pretty much as Tim and Invictus have indicated - unlikely the intermontana is het for any corn morph genes if it is pure - so offspring would look like what are called rootbeer corns - less reddish, browner version of normal corn pattern that are produced when great plains rat is crossed with corn.

All would be het for anery A, and each would have 50% chance of being het for anery B (charcoal) and 50% chance het for bloodred. I am not sure it is true to say they would be 50% het for pewter because you couldn't be sure that the charcoal and bloodred that have to be combined to produce pewter would be inherited together. Crosses of these offspring together would actually have a greater possibility of producing the combination of bloodred with anery A (can't recall the name of those) than of combining it with anery B to produce pewters - and it could be pretty hard to tell those apart. There are also some issues with whether the bloodred component is inherited as a simple recessive - it seems to have some impact even in animals where only one parent had the gene, so you might be able to distinguish the offspring with bloodred genes from the others.

Maybe Simon, or someone else with a better understanding of corn genetics will respond as well. Would be great to see your intermontana 'corn' though - nice to see some variety,

mary v.

[Simon]

Mary is right.
Intermontana is a rat snake and it's not a corn snake. If you breed an intermontana to an anery het pewter you'll get all normals hybrids of corn/rat morph.
These 'normals' would then be het for anery, bloodred and charcoal for the corn snake and assuming that the intermontana isn't het for anything that is.

If your intermontana is a hybrid of corns before (ie a breeder selling you an intermontana x corn morph) breeding it to a corn snake would make the hatchlings look <b>more like</b> (not 100% full remember) corns and may come out with some different color or morphs of corn/rat hybird.

As Mary stated, the bloodred gene is really weird....you can basically tell that a corn snake is actually het for bloodred by the greyish head that bloodred produces. By breeding a bloodred x normal, you'll definately get all normals (assuming that both are not get for anything of course). But these normals would have a greyish head, kind of like saying 'hey I am het for bloodred am I nice?" sort of thing...I am not saying that this is 100% true, but then I have seen a lot of het bloodred hatchlings that have this kind of 'weird head'

Hope this helped~
One thing that I am 100% sure is that an Intermontana is a rat snake, NOT A CORN SNAKE (even though corn snakes are cousins of the rats...lol)

[rynwilliams]

I thought a intermontana corn/rat snake was a natural interbreeding between the great plains rat snake and cornsnakes.

[Simon]

here is a link that should help you out.

http://www.cornsnake.net/new/otherprice.php3

Go to Emory Rat Snake - Intermontana and read the little discriptions there.

I also looked into these snakes before. In fact me and Don at SMR and a friend of mine were looking at them at the same time and Don found a good source with great prices and Don and my friend got a few from the other breeder (and I didn't get a chance to get them since I am in Canada....but my friend did show me the intermontana in person though..)

So that is why I am so sure that the intermontana is a rat snake and not a hybrid~

[reverendsterlin]

breed the emoyri to an amel gutata and I think you get het creamcicle

[reverendsterlin]

as far as I knew the Elaphe guttata intermontana and Elaphe emoryi intermontana debate was still undecided, has there been a study and report made that I missed? Still an interesting dwarf form however it winds up.