Posted by:
rtdunham
at Wed Oct 6 16:25:15 2004 [ Email Message ] [ Show All Posts by rtdunham ]
it's also true that the "pale hypos" I posted a pic of ARE hypoerythristic, how better to describe the reduced red on them? But setting them apart from the hypoerythristic or "anery" we're discussing in this thread, is not only the fact that the red is reduced in different ways, but also that the "pale hypo" is also hypo, yet not characteristic of the two other hypo pyro types i'm familiar with, the barczyk line in which the black rings are altered to a dark chocolate brown, and the sentz line on which the black rings are altered to a lighter coffee-and-cream brown.
Those both appear to have been proven to be recessive morphs. Are they the same or different alleles, if i'm using that term correctly? And waht about this new "pale" type? Is it a third type? Or might all three be variations on a single hypo morph, just points along a continuum?
(the same issue is being examined now with "super" or "extreme" hypomelanistic HONDURANS, on which the black rings are reduced to a flesh color that's much lighter than any pyro i'd seen before mike falcon produced the first "extreme" a couple years ago. Two diff hypomelanistic hondo morphs? Or just lighter and darker variations of a single hypom mutation? -- some background: one breeding of extreme x extreme hypom SEEMS this year to have produced babies all but one of which were extremes. But that one that wasn't an extreme poses serious questions about the nature of the genetics. And a breeding of my extreme hypo male hondo x a "regular" hypo female produced babies all of which were hypos, but none were extremes. It's gonna take more test breedings to confirm what's going on there).
And i guess it's gonna take more test breedings to determine exactly what's going on with these various hypom pyros. Jeff, did you breed barczyk x sentz? or has anyone bred the two lines together even on a het to homozygous or het to het level? give us a report, maybe start a new thread, if you have data to share.
I know there are hets that are definite het for one of the two hypomelanistic types and possible het for the other. Eventually we'll run across pairs that produce both...but sometimes those pairs can impede understanding the genetics more than helping us understand them--will there be a third type, the double-morph sentz and barczyk hypo m, which combines the reduction of the first type and the further reduction of the second type, producing an animal that's even lighter than either of the first two? Makes sense, but figuring it all out.... 
[ Hide Replies ]
|
it's also true... - rtdunham, Wed Oct 6 16:25:15 2004