In general, pedigree breeds use a much
smaller gene pool for breeding than domestic cats and therefore have a higher risk of developing inherited disorders.
Many trendy purebreds have too
small a gene pool for reliable breed health.
Not exact matches
We could get radiation - resistance
genes,
for example, from the Bdelloid rotifer, a class of
small invertebrates that live in freshwater
pools and survive megadoses of ionizing radiation.
Is it also possible that their
gene pool is the major factor
for longevity and that diet plays a
small role?
This could either be an advantage as there may be more serious people on it or a disadvantage that the
gene pool is too
small or people have just joined
for curiosity to start with.
However, the
gene pool for purebred cats is pretty
small, which colors all breeding considerations.
The early years of the breed involved a fairly
small gene pool, so the risk
for hereditary conditions is worth considering
for this breed.
To accomplish this Bell says that breeds with
small populations (LE list) need a mentoring program
for their puppy buyers because healthy
gene pools require genetic diversity and the careful selection of sires and dams in order to produce the desired traits and avoid the deleterious mutations that accompany unwanted traits and diseases.
This is a rare breed, therefore the
gene pool for this breed is
small.
This is a genetic weakness, believed to be caused by the relatively
small gene pool that was necessary to breed
for specific characteristics (both physical and mental).