Q & A: Whites, Plains, &
the
Boxer Gene Pool

Dr. Bruce M. Cattanach
Q.
What will the results of a white x solid (plain) breeding be?
A.
There are no doubts about the expectations. The genetics is secure, all
should be flashy. I have done the mating twice in connection
with bobtail and other tail inheritance tests. There were
in total 14 pups in these two litters; all the pups were standard
flashy. The degree of flash should depend upon that in the background
breeding, as degree of white markings seems to be inherited; it can be
modified by selective breeding.
On a related note, an SB-L member mentioned that flashy dogs can have
black faces. He was defining flashy as genetic flashy and not
using it as a loose descriptive term. But he is perfectly
correct. The classic example in the UK was Pat Heath's famous Ch
Ashgate Able Seaman of Seefeld. Quite a number of his progeny showed
the same attribute. I had one, Steynmere Oh Susannah, dam of my
current winning pair. She had an almost a completely black mask with
only a few white hairs along a line down between the eyes, but she had
long white socks as well as the standard chest markings. Some of her
grandchildren are similarly marked. Clearly there is
an inherited component here too.
Q.
What is the amount of white that makes a dog "flashy"? I
have seen puppies that have a partial mask and white feet that are called
plain.
A. The
term flashy is just a dog breeder or Boxer breeder term and may therefore
only represent what people see. If there is a lot of white the dog
is obviously flashy but if it generally looks "plain"
then it is thought not to be flashy. Used this way the term is
purely subjective and means nothing genetically.
I have endeavored to apply a genetic meaning to the term and to relate
this term to the boundary between flashy and solid/plain. Based on
the results of a survey, it seemed that a workable definition for solid
would be "white on feet confined to toes." This means that
some
solids may have some white on the face but a black face does not mean
solid if the dog has white socks. It is not an absolute boundary for
all the old fashioned reasons. Some "lines" are highly
flashy and in these lines, the solids would be expected to show more white
than defined. The reverse would be plainer flashy lines in which the
solids might tend to be almost devoid of any white. I had one such
dog years ago before the fashion for flash got started.
Changing the topic a little towards all this talk of whites and gene
pools: I think an essential point is being missed. Whites do not
have genes that their solid and flashy sibs don't have. The only
difference overall is that they have two doses of the white spotting gene,
whereas flashies have one (plus a normal form for pigmentation) and the
solids have only the normal form. Just one gene. So they are
not liable to be any better or worse in any respect (but one) than their
litter mates. But one!!! Here I refer to the risks of deafness
but this is directly caused by the white
spotting gene (in double dose) in whites. With only one dose the
risks are minimal, so breeding from whites in no way would increase the
incidence of deafness throughout the solid or flashy
members of the breed, but more whites would occur and therefore there
would be more deaf Boxers.
All this highlights the crazy elements of dog breeding. The white
markings are seen as attractive to the point of becoming essential for the
show ring. But, in truth, it is not a desirable gene (deafness,
susceptibility to sun burn, and potentially, a number of other ill
effects). But this is the SHOW scene where "beauty" is
all. And it is not specific to Boxers. Trivial markings are
seemingly important to some breeds, like the size of spots in Dalmatians,
the Blenheim spot at the occiput of Cavaliers, the fine white blaze on the
face of NS Duck Tolling Retrievers. And these are breed points
written into the Standards. It is all just "fancy"
breeding. It has nothing to do with function, working ability or
health.
Q. Is
it conceivable that genetic plains can be selected for in either
direction? Is it possible to breed an over-marked plain? One that would be
genetically plain, but look flashy? To what extent can you select for
either side (more or less white on a plain)? In other words, how much
can the
level of white on a (genetic) plain be manipulated?
A. One
must expect that over-marked plains could be bred, as also, by the reverse
selective breeding process, plains without any white.
The latter is not unusual in many dog breeds where white markings are not
wanted. And personal experience and observation confirms for me the
"over-marked plain" idea.
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