Genetics

[deadhead]

Hey guys can someone tell me the morphs of T. Radix and wether they are Dom,codom, or recessive I'm a bit confused as I thought albino was recessive as in other species but someone on the forum posted a litter from a ertheryistic x albino and has albino babies maybe I read it wrong but any help would be greatly appreciated!

[d_virginiana]

Albinism is always recessive. If the erythristic/albino pairing had albino babies, then the erythristic had to have been het for albino, meaning about half the babies should've been albino and half not.

[Tommytradix]

"erythristic" is a term mainly used to describe easterns not radix. when the erythrism gene is present in radix its simply called red as with the red plains and red albinos. the erythristic gene is co dom. as for radix morphs there are albino, red albino, nebraska albino, red nebraska albino,snow, nebraska snow, red plains, blue axanthic,black and white axanthic, red/blue axanthic,anerythristic, and blizzard and alot of the albino radix i breed have varying degrees of polymorhism hope i didnt miss any lol

[Jeff B]

Tommy covered it pretty good, mentioned the "Nebraska strain" albino, but did not mention the Iowa albino. The "Nebraska strain" albino radix is a tyrosinase positive (T+) albino and the "Iowa strain" albino is a tyrosinase negative (T-).
I am guessing Tommy that when you say your albinos have varying degrees of polymorphism, you are producing both T- and T+, or maybe some additional degree of variance is caused from the red(erythristic) genes. Albino is a simple recessive gene, so its either on or off, it is not polymorphic in itself.

[Tommytradix]

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[Tommytradix]

thanks jeff and when i say polymorpism i mean color varience like the pics i just posted some have orange stripes and some have yellow and some are white inbetween the pattern and some are a more darker color the pics i posted are all iowa strain (t negitive)

[Tommytradix]

one even has a white stripe which ive personally never seen in radix

[Tommytradix]

jeff could you please give me some clarity on the blue axanthic gene? i dont quite understand it lol as you know my female blue axanthis is gravid and was sired by a snow and i have no clue what to expect lol ive read your site and it just isnt making sense to me for some reason any imformation would be greatly appreciated

[Tommytradix]

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[Jeff B]

Should produce axanthics and anerythristics, unless that female is het albino too, in which case you would also have the chance to produce in addition, snows and blizzards. The axanthic and anery genes are co-allelic.