Double rex? Single? Hairless?

[MootWorm]

Ok, so I've got my first litter of 'hairless' that I haven't fed off. So, I'm pretty sure the mother is a hairless ( or not. What do I know?), but I'm thinking the dad is a double rex. The babies have some wavy curls and VERY curly whiskers. But, I've read that some double rex and/or hairless are born with hair, but lose it over time. I'm still working on figuring out the genetics behind the parents. After I have an available female, I'll breed the sire to a standard haired.

I've also got another litter of his on the ground, but I'm pretty sure the dam is his sister (bought them from the same source, at same age) so I'm not sure that will prove anything out.

If anyone with experience breeding rex and double rex, I'd love some input.

One of the babies in question:

[Sama]

That is a cute little Rex. Any pictures of the parents?

[sorraia]

Those babies look rex. If the whole litter is like that, then good chance dad is a double rex and mom is a hairless.

Double rex is two dominant copies of the rex gene. Breeding double rex to different fur types:

(I'm going to call the rex gene "Re", the hairless gene "cu", while "re" and "Cu" are for standard fur. Other sites/people may use different symbols.)

Double rex (Re/Re) x Double rex (Re/Re) = 100% Double rex (Re/Re)

Double rex (Re/Re) x Rex (Re/re) = 50% Double Rex (Re/Re), 50% Rex (Re/re)

Double rex (Re/Re) x Non-rex (re/re) = 100% Rex (Re/re)

Double rex (Re/Re Cu/-) x hairless (re/re cu/cu) = 100% Rex, possibility of hairless rex (would look hairless) if Double rex parent carries hairless, all non-hairless babies are carriers of hairless

Double rex (Re/Re Cu/-) x hairless rex (Re/re cu/cu, would look hairless) = 50% Double rex (Re/Re), 50% rex (Re/re), possibility of hairless rex or hairless double rex if double rex parent carries hairless, all babies would at least be carriers of hairless

[MootWorm]

Thanks guys! I'm fairly confident they aren't hairless, but I've never seen double rex babies, so I'm not sure :/ They all have wavy/curly hair, some more than others. I'm leaning toward single rex, but time will only tell. I'm kind of pumped, I've been wanting to add some rex into my colony.

Anyway, here's some pics of the proud parents:


Big mama




Dad and big mama's sister wife:

Dad is the dumbo on the floor


He does have a light coat of hair on his lower half.

[Sama]

I don't know anything about true hairless other then it is recessive but I work with a lot of Rex and double Rex. Mine can range from one that has thin hair to ones that are completely bald and everything in between. I haven't payed much attention to when the double Rex start losing their coat but I know by the time I wean them I can usually tell. As mentioned Rex is co-dominate so if you have a double Rex all babies will be Rex and if the female is double Rex then all the babies will be double Rex.

Personally I love Rex but I am not crazy for the double Rex. So I tend to keep a Rex or double Rex buck with a group of standard does or a Rex doe with a standard buck.

[sorraia]

The mom looks like a true hairless. Dad looks like he could be a poor quality hairless, or (more likely in my opinion) double Rex.

[snakesRkewl]

The mom looks like a true hairless. Dad looks like he could be a poor quality hairless, or (more likely in my opinion) double Rex.

Dad looks like a double rex, mom a recessive hairless.
Making the babies all rex and all hairless carriers.

[SarWildDog]

Having worked with rex, double rex, and hairless before, SnakesRKewl hit it right on the head.

[MootWorm]

Thanks guys, that's what I figured. I'll probably breed dad to my standard coats just to be 100% (and to get some more rexes ).

[SlitherinSisters]

Awww! I want rex babies!!!!