Picture gene & lineage tree
Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.
Breeder-reported founding stocks, with selection generations omitted Source: Tarumi original Long Fin development
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Lineage review · Batch 20: Historical source describes the breeding stock or selected form shown by dashed connections. This does not establish individual parentage, genotype, or dominance. Original specialist source ↗
Overview
A breeder-described Kizakura × Yume Lame selection emphasizing stronger fin guanine and progressively elongated fins. The gallery credits Masaharu Tarumi as original house longfin breeding developer. The distinction between creator, house-line selector and older parent-stock developers remains important.
Claim-by-claim evidence
| Research finding | Evidence class | Direct references |
|---|---|---|
| Breeder credit: Masaharu Tarumi, described as original house longfin breeding developer. | Breeder-submitted first-party report; independent corroboration pending | G1 ↗ |
| Reported selection inputs or ancestry: Kizakura × Yume Lame (reported founding program; selective generations omitted). | Breeder-described genealogy; not a molecular pedigree | G1 ↗ |
| Reported appearance or target expression: Prominent fin reflection around tail, dorsal and anal fins; longfin direction selected. | Breeder phenotype description; not a standardized diagnostic test | G1 ↗ |
| The source cites Aqua Life November 2018, which is documentation rather than first-sale proof. | Date scope: gallery or cited magazine context only | G1 ↗ |
Evidence labels refer to documentary strength. They do not assert independently tested genetics.
Known research gaps
- A developmental precursor to later long-fin branches is not necessarily their directly verified parent fish.
- Original-source breeder narratives cannot authenticate the actual fish sold under the label or establish Mendelian inheritance.
- A complete first-sale timeline, actual mating and selected-generation logs, licensed photographs and independent secondary review are unavailable.
Related profiles and lineages
Original research sources
Every row above links directly to its cited reference; publication or creation years are not interchangeable.
- G1: Japan Medaka Universe — Medaka breeder gallery — First-person breeder-group gallery; publication dates and stock authentication not independently established