Which is more dominant in breeding?


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Which is more dominant in breeding?

Which of the two, Dam or Sire, is more dominant in breeding. In other words, who's characteristics do most of the puppies resemble or is it that some puppies resemble the dam and some resemble the sire, if the latter is the case what percentage. I have my own idea but I am curious to what other, much more experienced, breeders think?

Bruce Fisher
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Neither did Claudia Orlandi in talk on genetics at Nationals

that time...don't know if she mentioned it in the talk or seminar but I know I had been there with her in a discussion about the 'male tail' vs 'female tail' side of lines following a different book and got around to which parent is more influential....it was all genetics and that is a roll of the dice unless one side is 'stacked' the way you mentioned Liz. Some lines are dominant for a particular trait, say like heads or bone, and the stud will tend to improve that one trait if the bitch is lacking in it but not w/o influence from her side in some pups.
I think the bitch can influence temperament a bit more b/c they are the ones who imprint on the pups but that is not a proven ... just a personal theory...and part of that theory extends to not just the bitch but to the people who are the ones who are socializing and raising the pups from 3 to 12 weeks as they 'shape' some behaviors and attitudes early on even if they are not aware of it.
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Lorraine
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Re: Which is more dominant in breeding?

If you are looking for the answer in terms of features, I will use that ubiquitous term.. "depends"
Because it depends on so much or so little.
If the dog is tightly linebred and the bitch is not (or vice versa), he might dominate the look of the puppies.
Some dogs or bitches are just stronger in features, not unlike some people you probably know. Kids look strongly like dad or mom and not much like the other parent. No line or inbreeding is involved here, just strong features.
In dog breeding, I try to avoid these kinds of stud dogs iin outcrossing because I don't want the "look" here adulterated.
Some people feel this would be a bonus for their choice of a stud dog.
This is why homework is so beneficial, and in addition to homework, lots of field trips.

If your question is deeper, as in gene "donation", some people feel the bitch gives more to the puppy than the dog does. I am not a geneticist, I work anecdotally, and I have not noticed this to hold true.

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JadesK9s's picture

Genetics and Punnet Square......

This is what I learned in school.....it depends on what parent carries the dominant gene, or if both carry it or neither carry it for a particular trait.... and the only way to know that is to do a complete DNA profile on both parents... here is an example...

A punnett square is made by taking the 2 alleles for a gene from each parent, lining one pair of alleles on the x axis and one pair on the y axis then combining the two finding out what the genotype of the offspring will be. For example let us say we have 2 black cats but they both have these alleles for color Bb

The BIG B is dominate over the little b and is expressed as black. If a offspring from these two cats got
bb then it would be white....

Imagine this is a square..... The square has four boxes in it, fill each box with the allele above it from the mother, and the allele beside it from the father. This is a possible combination of alleles of that gene in a kitten. The four boxes in the Punnett square represent the four possible combinations of the alleles.

--Mother B b
Father B BB bB
--------b Bb bb

This cross yields three possible genotypes in the offspring - BB, Bb, and bb. In addition to showing the possible genotypes of offspring, the Punnett square also indicates how likely a particular offspring of this mating is to have a given genotype. In this case, there is a one in four (25%) chance that the offspring would be BB, two in four (50%) that it would be Bb and one in four (25%) that it would be bb. This is like throwing a four sided die, with BB written on one side, Bb written on two, and bb on the other. This die gets thrown once for each offspring.

That is why I believe when breeding you never breed fault to fault...

As they always say... it is like rolling the dice......







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