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#30195 - 08/05/08 03:02 AM Re: Dog genetics forum?something like this
Norwegian Offline
Coop Keeper

Registered: 08/31/03
Posts: 523
Loc: Norway
Quote:
I did find in a P.B.S. program on dog genetics that a genetist in Russia was asked by fur farmers to help them breed a tamer strain of foxes .
Actually, it was a scientific breeding program that went over a number years to see what selection for "tameness" would result in. The issue of course, was early domestication of dogs.

See link (Pdf): An Experiment on Fox Domestication

and here: Early Canid Domestication:

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#30196 - 08/07/08 12:13 PM Re: Dog genetics forum?something like this
Seedy Seeds Offline
Coop Cleaner

Registered: 08/29/05
Posts: 240
Loc: Massachusetts
The Irish Wolfhound was the tallest breed for years at 36 vinches high at the shoulder . however the tallest living dog is a Great Dane at 42 inches at the shoulder. eek thank you all for your help . laugh

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#30197 - 09/05/08 08:47 AM Re: Dog genetics forum?something like this
Seedy Seeds Offline
Coop Cleaner

Registered: 08/29/05
Posts: 240
Loc: Massachusetts
As far as having enough breeds already and so many in shelters destroyed, they have been saying that for years, decades even; and there are many more breeds today than there were in 1970 when I wanted to start this project. Five million dogs a year are destroyed because of behavior problems. They picked the wrong dog for the wrong family. Dalmations have pretty spots, but they need to run 10 miles a day (not an apartment dog). If you can stop me, I would not be worth anything as a breeder anyway. If I could get an animal from a shelter that was in breedable condition and with papers when applicable, I would at least consider it.

I am looking for a male calico cat (only 1% of calico cats are male ). I have found 15 in different shelters and all refused to sell me one unless it was sterilized. "If I cannot breed them, I do not need them." That is my motto. I want progress from each generation toward a better breed, NOT JUST A PET!

I believe I could outdo Louis Dobberman in breeding the supper dog. If I had not been discouraged by people (including experts) such as Dr. Nixon, a world renouned geneticist in the 1980's, I may have already done so.

Thank you anyways, and thank you for all your help.

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#30198 - 09/06/08 01:30 AM Re: Dog genetics forum?something like this
Henk69 Offline
Moderator
Classroom Professor

Registered: 02/13/06
Posts: 3208
Loc: Netherlands
Calico cat males are XXY. You probably know that.
That's not a healthy chromosome composition.

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#30199 - 09/11/08 10:09 AM Re: Dog genetics forum?something like this
Seedy Seeds Offline
Coop Cleaner

Registered: 08/29/05
Posts: 240
Loc: Massachusetts
They usually are XXY but there is also a "false male calico " that is auburn , orange and white that is not .

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#30200 - 10/10/08 10:01 AM Re: Dog genetics forum?something like this
Seedy Seeds Offline
Coop Cleaner

Registered: 08/29/05
Posts: 240
Loc: Massachusetts
Actually even if XXY male calicoes are defective there are many breeds that could be called defective in cats : rag dolls , twisty cats . Even Siamese cats had crossed eyes and a kinked tail in the beginning . In the process of eliminating these defects they developed : Himalayan , Tonkenese, and Russian blue cats as a by product :rolleyes: . Besides for pure research purchases I would like to see if the very rare male calico could breed true .

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#30201 - 10/10/08 08:17 PM Re: Dog genetics forum?something like this
John Bro Offline
New Egg

Registered: 07/08/08
Posts: 7
Loc: Canada
There is a difference between gross chromosomal abnormalities (such as an extra x chromosome, as in an xxy "male") and a homozygous recessive that has been selected for and eventually fixed (such as the other examples you give). An xxy male will not breed true - it isn't really even a true male.

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