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Five SSR markers are not a colour-purity certificate
The evidence library is allowed to change in public. This page preserves the revised boundary, why it moved and which guides were affected.
What changed
The genetics guide now includes a 2020 super red, chocolate and reciprocal-cross marker study while separating marker development in one supplier breeding population from a validated trade-line test.
Why it changed
The complete article and eleven official supplements support five polymorphic SSR loci and reveal eight selected females and males per source strain plus three families per cross group. They do not provide individual genotype data, complete group denominators, family-aware analysis, standardized colour phenotypes, Mendelian segregation or an independent test population. Hybrid frequencies occur in eighths despite a stated 50 offspring per group, and the claimed 0.0018 percent combined misrecognition rate is not derived or tested on held-out animals.
Sources reviewed for this change
Affected practical guides
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