The Mohave Bob is a new breed created from
crossing the Desert Lynx, Highland Lynx and Selkirk. The cross
can produce up to 4 different mutation in one cat, these include the
natural bob tail, polydactyl feet, curl back ears, and curled coats.
Because of the genetics of the different mutations it is very
important that these cats be breed carefully. NOTE MOHAVE BOB
SHOULD NOT HAVE ANY WHITE ON
THEM UNLESS THEY ARE SNOW COLOR POINTED!
The natural bob tail, although I believe does
not contain the Manx tailless gene but more of the Pixie Bob tail
gene (This is not the
tail gene found in the Manx, nor the Japanese Bobtail, nor any other
breed.), there could be risks when breeding two natural short
tails. This mainly would be if breeding stock has the gene for
the Manx tailless in their lines. The Manx tailless gene is
dominant; kittens from Manx parents are generally born without any
tail. Having two copies of the gene is lethal and kittens are
usually spontaneously aborted before birth. This means that tailless
cats can carry only one copy of the gene. Because of the danger of
having two copies of the tailless gene, breeders have to be careful
about breeding two tailless Manxes together. Problems can be avoided
by breeding tailless cats with tailed ones and this breeding
practice is responsible for the decreasing occurrence of spinal
problems in recent years. (wikipedia) In
my personal breeding program I usually breed natural short tails to
docked tails although my lines do not carry the Manx genes in
The polydactyl feet too can have risks of extra
claws between the thumb and forefingers that have a tendency to curl
in the wrong direction. Breeders and owners need to watch for
this in individuals in the breed with the polydactyl feet.
Polydactyl (extra-toed) cats. There are probably many genes, both
dominant and recessive, that cause polydactyl in cats. Most cases of
polydactyl in cats are perfectly harmless. (http://www.messybeast.com/poly-cats.html)
Pd = Thumb-cat polydactyl gene.
The Pd gene (dominant with incomplete penetrance) causes the benign,
pre-axial form of polydactyl where one or more extra toes occur near
the dew claw. Often, the dew claw is converted into a thumb. There
are occasional problems such as fused claws or claws facing in the
wrong direction, but generally, this form of polydactyl is harmless.
On the other hand, the
"hamburger-feet" polydactyl gene is associated with gene for radial
hypoplasia (RH). The 1995 European Convention for the Protection of
Pet Animals considers RH an impairing condition. In a scandal in the
late 1990s, an experimental breeder in Texas tried to perpetuate
this deformity as the "Twisty Cat" breed. Mild RH can cause the
post-axial form of polydactyl - enlarged paws, extra three-jointed
toes on the outer, little-toe side of the paws, and no thumb. X-rays
can determine the structure of the extra toes and whether the cat
has the gene for RH. Cats with the gene for RH should never be bred.
Cats with severe RH have unusually short front legs. They move like
a ferret and they tend to sit like a squirrel or kangaroo and are
colloquially known as squittens. In some RH cats, the forelegs are
twisted with the long bones either severely shortened or absent. All
polydactyl cats are banned from German cat shows, possibly because
of confusion with the impairing form of polydactyl associated with
This mutation is a dominant gene so litters will
often contain a mix of curl-eared and prick-eared cats. It is
impossible to tell which kittens will develop a good curl - they are
all born prick eared. The ears curl up tightly over the next few
days. During the next four months, the tight curl starts to relax
until the final semi-curled state is reached. As far as is known,
the gene does not cause detrimental side-effects.
The Hemingway Curl is a localized variety rather
than a breed. The first Hemingway Curl appeared as a
spontaneous curl-eared mutation in a colony of polydactyl cats known
as Hemingway cats (after the polydactyl cats of Ernest Hemingway) on
Key West. Hemingway Curls have since been crossed with African
Jungle cat hybrids to produce the Jungle Curl breed.
The curled ear mutation is from
the Highland Lynx and not the American Curl. The Highland Lynx
using a Hemingway Curl.
Because of the curled ear mutation, ear need to be
checks as part of their grooming routine. The curling of the ear can
irritation of the ear where the hair follows the curve of the curl
occur, increasing the production of ear wax.
outer area of the ear should be gently swabbed with q-tips, it is
important not to swab deeply into the ear as you may only push wax
against the ear drum, causing pain and an eventual ear infection
The curled coat (rex gene)
mutation is a dominant spontaneous gene
which causes each hair (guard, down and awn) to have a gentle wave
or curl giving the coat a soft feel, from the Selkirk Rex, so litter
will often contain a mix of curled coats and straight coats.
The soft, plushy, curly coat should feel with loose, individual
curls. The entire coat should show the effect of the rex gene
although curliness may be evident more around the neck, tail and
belly areas. The
coat requires proper attention and can feel greasy on some
individuals due to the oily skin. This is something found in most of
the rex breeds and sometimes carries over to the production of a
great deal of dark earwax that must be cleaned constantly.
Some individual kittens may have
tearing eyes that will require washing due to the Selkirk and the
Selkirk outcross breeds.
Not all Mohave Bob
kittens have all four mutations