It is more closely associated with maternal lineages found in wolves, foxes, and jackals than with
other dog lineages.
Not exact matches
Unlike many Y chromosome (male)
lineages found in European and recent American breeds, only one village
dog (in Alaska) carries an A1 Y chromosome, indicating that the breeds from this
lineage probably didn't travel around the world with European colonization as much as some
other breeds.
This paternal
lineage is genetically closer to wolves, foxes, and jackals than to
other dogs.
They found that
dogs and wolves must have split into two separate
lineages 27,000 to 40,000 years ago, bringing the DNA and archaeological evidence into line with each
other.
Reputable breeders keep careful records about the
lineage of their animals and so can breed
dogs selectively to improve their health, temperament, appearance, and
other qualities.
There is a controversy surrounding the breed: some claim that today's
dogs are descended from the ancient
lineage, while
others say that the modern version is a recreation and that the original breed went extinct long ago.
This makes the American Pitbull Terrier seem like a statistically vicious
dog — but it's no more human aggressive than
others; a
lineage of
dog fighting could increase this breeds chances of being aggressive to
dogs, however.
In
other words, you would have to study 12 years of
lineage with a complete freedom from the disease in all of the litters before you could be certain that this line of
dogs is not going to acquire or even pass along HD.
As we mentioned earlier in our discussion of Pitbulls and Pitbull hybrids, proper training and socialization with
other dogs and humans from an early age can help to prevent a puppy with German Shepherd
lineage from developing aggressive behavior later in life.
Due to their terrier
lineage, these
dogs may have a high prey drive and they have been known to cause problems with cats and
other small pets.
German shorthaired pointers are distinctly their own breed, but that doesn't mean they don't have an extensive
lineage that includes many
other kinds of
dogs.
The word «Pedigree» means a
dog whose parents and
lineage are all of the same pedigree breed, i.e. a Cavalier produced purely from generations of cavaliers on both the mother's (Dam) and father's (sire) side without contamination from
other breeds.
As
other hybrid
dogs, shichons can potentially inherit breed - specific diseases found in their parent's
lineage.
Knowing the health status of the
dogs in a breeding program and
others in its
lineage allows breeders and genetic counselors to decide which matings are the most appropriate for reducing the incidence of disease and disorders in the offspring.
If the
dog is full of fighting
dog lines and DNA, sure, I can see that being a potentially dangerous
dog (ie: full of American staffordshire terriers crossed with
other bully
dogs of angry
lineage, bred to be huge with aggressive tendencies on purpose, etc.).
One of the samples (a tooth) turned out to be from a
dog; the
other 23 samples were grouped into four bear
lineages: Himalayan brown bear, Tibetan brown bear, Continental Eurasian brown bear and Asian black bear.