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Random mosaic genetics question
#627153
09/02/08 10:37 PM
09/02/08 10:37 PM
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7glider7
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7glider7
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OK, I was reading the other post about mosaics and sterility, and now I was hoping someone could clarify the mode of inheritance for mosaic for me. People are saying that mosaics are dominant (or I have also seen it listed as codominant), but then I saw people posting that from a mosaic x classic gray cross, the babies could be standard gray. Did I misread this or is this correct? Are all the babies from a mosaic x classic gray pairing ALWAYS mosaic, or can they also be standard? Just trying to figure out for myself if it is dominant or codominant...not that I am planning on breeding but I am a genetics geek If mosaic was codominant, then methinks that all the babies from whatever pairing you do would have mosaic coloring, but if mosaic was simply autosomal dominant, than this could explain standard babies showing up from such a pairing. Thanks in advance for the info, breeders!
Last edited by 7glider7; 09/02/08 10:38 PM.
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Re: Random mosaic genetics question
[Re: konotashi]
#627221
09/02/08 11:57 PM
09/02/08 11:57 PM
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7glider7
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7glider7
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Thanks Becki and Lynsie, that makes sense. Actually Marissa, you would have to have mosaic hets if I'm not mistaken...otherwise there would be no way that a mosaic could have a standard gray baby. By mosaic het I mean in the sense that the mosaic glider is heterozygous, not that it is a "carrier." Because any glider "carrying" the dominant mosaic allele would, in fact, be a mosaic...so it's not an allele that could be masked. The mosaic gene has been determined to be a dominant gene, meaning that any glider that carries it is mosaic. Let's say that the mosaic allele is M. Anytime a glider is mosaic an M has to be present, so the mosaic glider could be MM or Mm. In order for you to get standard gray babies (mm) from a mosaic cross, the mosaic glider would have to be heterozygous, or carrying an m. This way if a mosaic (Mm) was paired with a standard gray (mm), about 50% of your offspring would be mosaic, and 50% would be standard gray, like what Lynsie just described. That is assuming they are autosomal...and it sounds like mosaic might be codominant...which would make it a little different than I typed it above. Blood typing is a codominant system...probably the most commonly used example. (Correct me if I'm wrong on all this as I'm going on genetics and have not bred any of these cuties myself).
Last edited by 7glider7; 09/02/08 11:58 PM.
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Re: Random mosaic genetics question
[Re: konotashi]
#627268
09/03/08 12:35 AM
09/03/08 12:35 AM
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Joined: Aug 2007
Posts: 4,061 Mesa, AZ
konotashi
Glider Addict
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Glider Addict
Joined: Aug 2007
Posts: 4,061
Mesa, AZ
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Hold on. I'm making a codominance Punnet square, but then ALL of the babies should show the mosaic phenotype.... Hold on, I gotta figure this out!
Wait, I think I know what I'm doing now. Gimme a sec.
Last edited by konotashi; 09/03/08 12:35 AM.
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Re: Random mosaic genetics question
[Re: konotashi]
#627316
09/03/08 01:21 AM
09/03/08 01:21 AM
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7glider7
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7glider7
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Wow LOL you just gave yourself a crazy homework assignment with all those Punnett squares...but yup, you have the codominant thing exactly right Guess that clears it up for both of us, and anyone else who is curious enough to read the thread...great diagram for those who are not genetics geeks, hehe.
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Re: Random mosaic genetics question
[Re: ]
#627417
09/03/08 09:07 AM
09/03/08 09:07 AM
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tigiris1721
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tigiris1721
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Great job on the punnent square!!!!
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Re: Random mosaic genetics question
[Re: Srlb]
#627839
09/03/08 09:45 PM
09/03/08 09:45 PM
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7glider7
Unregistered
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7glider7
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Thimble is a cutie standard or not!
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Re: Random mosaic genetics question
[Re: konotashi]
#628173
09/04/08 12:17 PM
09/04/08 12:17 PM
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DewDropPony
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DewDropPony
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Here's the chart I made.
It shows where I messed up and everything.... But I corrected myself!
http://i254.photobucket.com/albums/hh100/Maki_Maki/Tiny%20Crap/Suggiegenentics.jpg konotashi, can I use this diagram for my glider website?
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Re: Random mosaic genetics question
[Re: ]
#628390
09/04/08 06:49 PM
09/04/08 06:49 PM
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Joined: Aug 2007
Posts: 4,061 Mesa, AZ
konotashi
Glider Addict
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Glider Addict
Joined: Aug 2007
Posts: 4,061
Mesa, AZ
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Here's the chart I made.
It shows where I messed up and everything.... But I corrected myself!
http://i254.photobucket.com/albums/hh100/Maki_Maki/Tiny%20Crap/Suggiegenentics.jpg konotashi, can I use this diagram for my glider website? If you want to. I'll be happy to crop out the other two charts if you don't want them on there.
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Re: Random mosaic genetics question
[Re: konotashi]
#628488
09/04/08 09:06 PM
09/04/08 09:06 PM
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DewDropPony
Unregistered
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DewDropPony
Unregistered
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That would be great! You can see my website. It's in my sig, if you didn't find it already.
I would put it in my breeding section for educational purposes only. I can also list your user name next to it, or real name, or keep you anonymous if you wish.
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Re: Random mosaic genetics question
[Re: ]
#628491
09/04/08 09:12 PM
09/04/08 09:12 PM
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Joined: Aug 2007
Posts: 4,061 Mesa, AZ
konotashi
Glider Addict
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Glider Addict
Joined: Aug 2007
Posts: 4,061
Mesa, AZ
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Here it is. I'm about to post a thread with a list of leucistic genetic possibilities. http://i254.photobucket.com/albums/hh100/Maki_Maki/Just%20Random%20Stuff/Mosaicgenetics.jpg
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Re: Random mosaic genetics question
[Re: konotashi]
#628495
09/04/08 09:14 PM
09/04/08 09:14 PM
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DewDropPony
Unregistered
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DewDropPony
Unregistered
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I saw. I was about to ask for that also.
::blushes::
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