polygenic traits

[Yveskevin]

ok, so how does a polygenic trait work, my knowlege to this by far is that when you breed two polygenic geckos like tangerines for example, they will produce offsprings with a higher degree of tangerine. the question is, does polygenic trait act like dominant traits? or probably even codominant traits?

if a TANGERINE is crossed with an ENIGMA, it would produce what? a tangerine enigma right (correct me if im wrong)? in this case, its obviouse that the offsprings will have the ENIGMA gene since its a dominant trait. but it seems that the TANGERINE trait got expressed immediately too in the offspings right? doesnt that say that POLYGENIC traits act like DOMINANT traits and gets better over some generation of line breeding?

 

[Slicer]

Polygenic is a mutation In the gene and is impossible to predict. That's my understanding of it. I got a jungle and as it turns out jungle is considered a polygenic and will most likely not pass on to the next generation. Also I may not even get anymore jungles from those parents either.


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[acpart]

Polygenetic means that the method of inheritance is complex. There's more of a chance that two geckos with the same polygenetic trait will produce offspring with the trait and possibly with a more intense manifestation of the trait, but it can't be predicted statistically like a dominant trait.

Aliza

 

[Yveskevin]

Polygenetic means that the method of inheritance is complex. There's more of a chance that two geckos with the same polygenetic trait will produce offspring with the trait and possibly with a more intense manifestation of the trait, but it can't be predicted statistically like a dominant trait.

Aliza

Hi Aliza -

does this mean that when crossing a TANGERINE to an ENIGMA, and i get a TANGERINE ENIGMA, the fact that tangerine got expressed along with the enigma trait was sheer luck? meaning that not all offsprings will be TANGERINE ENIGMAS (some will be just plain ENIGMAs?)

 

[DrCarrotTail]

In general when dealing with combos it's easiest to think about each gene or trait separately. There are two separate characteristics in question in a tangerine x enigma cross. The dominant enigma trait and the polygenic tangerine trait. You'll produce 50% enigmas and 50% non-enigmas. The tangerine will vary based on the tangerine of both parents. You'll probably get some orange coloration in between the two but depending on how compatible their orange is it can vary widely and be mostly unpredictable.

 

[acpart]

Couldn't have said it better!

Aliza