Identification and Conservation of Traits by Domestic Breeders
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Lazuli Wild-Type w/X-link
yellow finnage and ocular spotting
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As breeders of domestic strains or captive wild populations
we should be concerned with traits. Focusing
on traits will allow a breeder to conserve existing or produce unique
phenotypes.
Based on current best research all guppies are still
Peocilia reticulata. For the most part,
researchers in good standing have settled on; Peocilia reticulata reticulata,
Peocilia reticulata cumana, Peocilia reticulata wingei, Peocilia reticulata
obscura. As breeders, when describing phenotypical
variants as "morphs" it should be remembered we are simply dealing
with traits originating in genotype of wild stocks.
In the wild and under domestication trait selection,
retention and more importantly expression are driven by multiple factors. Including but not limited to; sexual
selection, predation, food resources, size of stream or impoundment, and lighting
to name a few. Phenoytpes are in turn the
result of ratios based on expressed &/or unexpressed traits as a result of
linkage and dominance. This based on
number of matings, births and deaths. Resulting
in expression of colors & pattern, finnage and body type. All based on traits.
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| Blond Ginga Sulphureus DS w/Purple Body Mutation (Pb) and Z-bar |
Much emphasis by breeders and researchers is routinely placed
on creation of names for specific genes or mutations that produce phenotype,
instead of identification of the driving traits. Those found in unlinked combination or locked
in linked complex to express phenotype. Individual
traits can be limited to a variant, isolated populations, specific members of a
mixed population, or a particular locale.
Many traits are conserved across species. All traits found
in wild guppies can easily cross defined lines of demarcation given the right
circumstances and be bred back to type or used to produce new phenotype. Traits are not limited to body, finnage,
color and pattern. They also impact longevity,
aggression, size, hardiness, and fecundity.
Rare or unexpressed traits found in wild genotype can hinder survival
under natural conditions. Positive selection
for any particular trait will have negative impact on another. The result is often not physically visible. You cannot add to one area without taking
away from another. There is an old
saying in livestock breeding; you start
with 100% and you end with 100%. All we do
as breeders is reshuffle the deck.
Lazuli Wild-Type w/X-link yellow & Y-link for red finnage, ocular spotting,
Purple Body Mutation (Pb), and MBAG
Under domestication we have the luxury of producing unique phenotypes
based on traits in a controlled environment.
Domestic Guppies are a composite of variants and their genotype. They are the result of identification and
combinations of specific, and often rare or unexpressed traits in unnatural
combinations.
While the maintenance of captive wild populations or unique
domestic strains should be of primary emphasis to breeders, it should not be an
encumbrance. You can easily view the
stocks within your fishroom and fellow breeders as gene banks. A collection of traits for infusion into your
stocks when needed. Knowledge of genetic
traits in turn will allow you to breed back to type or create new.
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Show season is well underway with various guppy clubs around the world.
Support the efforts of your fellow breeders by sending some entries
to promote your breeding program
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