Picture gene & lineage tree
Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.
This strain's direct parent lines are not established by the reviewed sources. No breeding cross, genotype or inheritance pattern is implied. Source: Sources remain under review; ancestry connections will appear only with cited evidence.
Browse the larger Medaka lineage atlas ↗
View this strain’s illustrated gene tree in Discord ↗
Lineage review · Batch 015: Original parental pair has not been established from cited material; the illustrated pedigree intentionally retains an unconnected ancestry gap. Specialist source ↗
Overview
The specialist catalogue records Association recognition number 15 in the 2015 spring exhibition for this unusual rhombus-tail form This is a historical creator/source record, not verified DNA or authenticated current broodstock.
Claim-by-claim evidence
| Research finding | Evidence class | Direct references |
|---|---|---|
| Specialist entry identifies Takenori Imamura / 今村武徳 as credited origin and lists 2015. | Specialist maker/year record; original registers independently uninspected | T392 ↗ |
| Amber transparent-scale body with a diamond-shaped caudal fin on otherwise ordinary-type proportions | Source-described phenotype, not a standardized diagnostic or genotype test | T392 ↗ |
| The specialist catalogue records Association recognition number 15 in the 2015 spring exhibition for this unusual rhombus-tail form | Published historical breeder account or attributed breeder-summary evidence | T392 ↗ |
| A cited recognition and reported low fixation rate are not independent genetic trait segregation tests | Differentiation and explicit breeding-evidence uncertainty | T392 ↗ |
Evidence labels refer to documentary strength. They do not assert independently tested genetics.
Known research gaps
- Original parent-fish specimen identities, complete breeding ledgers and unambiguous first-sale dates remain unconfirmed.
- No molecular evidence establishes trait inheritance or the breeding uniformity of retail stock named for this variety.
- Photographs are source-owned and have not been rehosted; licensing review and photographer attribution are pending.
Related profiles and lineages
Original research sources
Every row above links directly to its cited reference; publication or creation years are not interchangeable.
- T392: Medaka WEB Zukan 0392 Souta — 2015 Imamura Rhombus-tail selection with association recognition