Common Ancestry Search - Page 1

This question is purely out of curiosity.
I currently have a young GSD that has 100% DDR registered lines for many generations back.
My previous beloved but now passed GSD of 15 years has some DDR lines in his ancestry and I'm just curious to see if they have some common ancestry.
Wondering if there a calculator on this website where one can easily find common ancestors between two dogs, rather than manually searching the two pedigrees. I only see a calculator where you can look for common ancestry for 5 generations for breeding outcomes. But in this case both my dogs are males.
Thanks in advance for any information.

If you are not searching for a mating outcome, you can get your dog's pedigree for 7 generations back.
That should probably be enough to find any common ancestry.

If you want help with this, just post the dog's registered names, and (assuming they're in the database) one on the people on here who knows pedigrees really well can probably find any dogs they have in common.

If they are not in the database, well, you can add them yourself!

But no, I don't know of any shortcuts for doing this!

Thanks Sunsilver,
I have both dogs' pedigrees in the database and started searching with two screens open on my laptop which quickly proved very tedious.
A shortcut was exactly what I was looking for :)
I guess I'll just have to do it the old fashioned way.
Perhaps there is a program I could download data into and search for common names. I'll play around with it.
As I said, this is just an exercise in my own personal curiosity, not any earth shattering research.
I just thought it would be cool to find a link between my dogs.
I do a lot of hobby geneaology research of my own ancestry and love to find new discoveries.
Come to think of it, maybe I could upload data into the MyHeritage database that I use :D
Thanks again for your reply.

It shouldn't be too hard - there were not nearly as many DDR dogs bred as there were West German. Also people tend to breed to popular sires, so I'm fairly sure you will find some common ancestors in the pedigrees.

Edit: wait - My Heritage allows people to post DOG PEDIGREES?? :o  Wow, who would have thought??

I don't know if the allow it....but data is data. If its in the right format I should be able to create a 2 trees and compare.
Definitely a rainy day project....OR PDP could add a search engine to their software;)

Do a mating outcome between one of your dogs and a full sister of your other dog. The inbreeding coefficient will be a good indicator of how far back a common ancestor is if there are none listed.

You can continue going back through the created pedigree farther back by clicking on the various dogs and bitches in the seventh generation.  If you have PDF creating/editing software, you can merge the PDFs and then search.  If you go far eneough back, you'll eventually get to GSD line founders.

OR:

Get your two dogs' pedigrees out and compare the names in the 7th generation first. Any common ancestors more recently than that will also have the same lines behind them. Any matches will show you which lines to check for more recent common ancestors.

If there are no common ancestors, you can click on the 7th generation dogs and bitches and repeat with their 7th generation.

Repeat until you get back to the lines' founders. If the pedigrees are all complete, you'll eventually get back to one or more of the GSD line founders. So, yes, your two dogs do have common ancestors. The question is, how recently (and who/how many times)

 

All of the line founders are related.  See the table produced by Hans Prager for the relationship between the different line founders.

 

Lilu427 - It is probably worth pointing out (as no one else has) for others browsing if not necessarily for you, that (apart from "lines" back to the original foundation dogs) any common ancestry loses most if not all its influence from about 5 or less generations before your dog / the current generation.

Very few genetic conditions 'skip' generations. Of those that do, eg Epilepsy, the alleles tend to recombine and the condition re-appear within about 3 generations. So any influence on either conformation, or temperament, or trainability, or health fades out, with the effects of more, unrelated animals increasingly coming into the picture. Unless a dog, or dogs, get perpetuated by in-breeding, but then you would be aware of dogs re-used up closer in the pedigree.

While it is interesting to see which dogs might be repeated or related further back, it therefore isn't really any useful information, even for breeders. JMO.