Picture gene & lineage tree
Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.
Named breeder cross and experimental F3. Variable Hikari/dorsalfinless offspring do NOT demonstrate fixation, an official release, or Mendelian segregation. Source: Japan Medaka Universe first-person Seiryo Emerald Fin × Sapphire F3 record
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Lineage review · Batch 031: Named breeder cross and experimental F3. Variable Hikari/dorsalfinless offspring do NOT demonstrate fixation, an official release, or Mendelian segregation. Original specialist/breeder source ↗
Lineage review · Batch 017: The review has not established a defensible original breeding pair. The picture ancestry node remains deliberately disconnected. Specialist source ↗
Overview
A continuing F3 Emerald Fin × Sapphire cross selected with emphasis on dorsal exterior light. This account distinguishes original founder varieties, named selected variants, and unfinished breeder projects.
Claim-by-claim evidence
| Research finding | Evidence class | Direct references |
|---|---|---|
| Developer role: Seiryo Medaka / 清涼メダカ — Breeder-submitted experimental F3 house-selection project. | Breeder-submitted role, separate from original source-stock creators | JMU ↗ |
| The breeder describes promising exterior light and lame combinations, as well as emerging dorsalfinless and Hikari-body offspring, but labels the project incomplete. | First-person breeding/selection account; publication and sale chronology not independently complete | JMU ↗ |
| Mixed external shine/lame expression, sometimes dorsalfinless or Hikari form; selection is focused on improving exterior light. | Observed or intended visual selection; not a genetic trait test | JMU ↗ |
| F3 and the observed morphology do not establish genetic fixation, an official cultivar release, or uniformly inherited phenotypes. | Lineage ambiguity or experimental development constraint | JMU ↗ |
Evidence labels refer to documentary strength. They do not assert independently tested genetics.
Known research gaps
- Fish-specific parent identifiers, stock provenance, and any complete breeding generation log are not independently verified.
- DNA causation, segregation ratios, phenotype stability across breeders and first commercial sale year are unverified.
- Third-party fish photos cannot be reused without creator or rights-holder permission.
Related profiles and lineages
Original research sources
Every row above links directly to its cited reference; publication or creation years are not interchangeable.
- JMU: Japan Medaka Universe member gallery / first-person breeder submissions — Original named developer submissions, not DNA pedigree verification