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AQUAPEDIA / SOURCE-LINKED RESEARCH

Ryu no Hitomi (Dragon's Eye)

龍の瞳

Historic Medaka breeder-documented selected varietyEvidence by claimIndependent review ongoing

Ryu no Hitomi (Dragon's Eye): Pale albino white exterior-light fish with elongated longfin expression.

Picture gene & lineage tree

Visual pedigree of breeder-reported inputs, where available. Dashed arrows represent documentary claims or selection history, not DNA-tested genes.

Horizontal branching Medaka lineage. American name: Ryu no Hitomi (Dragon's Eye); Japanese romaji: not verified; Japanese characters: 龍の瞳. Parent lines not documented. No pedigree or genetic connection can be drawn. Documented source links and evidence qualifiers follow the diagram.AQUAPEDIA / MEDAKA LINEAGE ATLASSTRAIN PEDIGREEANCESTRY UNKNOWNNO ANCESTRY CONNECTORS • RESEARCH GAPAn original source establishing the parent lines has not been located.ANCESTRY DATA GAPParent lines not documentedFOCAL STRAINAMERICAN / ENGLISH NAMERyu no Hitomi (Dragon's Eye)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)龍の瞳
Parent lines not documented. No pedigree or genetic connection can be drawn. Not a confirmed genotype or parent-fish identification.

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 historical record credits Ikeya for an albino White Miyuki longfin selection created in 2018 This is a historical creator/source record, not verified DNA or authenticated current broodstock.

Claim-by-claim evidence

Research findingEvidence classDirect references
Specialist entry identifies Yuji Ikeya / 池谷雄二 as credited origin and lists 2018.Specialist maker/year record; original registers independently uninspectedH274 ↗
Pale albino white exterior-light fish with elongated longfin expressionSource-described phenotype, not a standardized diagnostic or genotype testH274 ↗
The historical record credits Ikeya for an albino White Miyuki longfin selection created in 2018Published historical breeder account or attributed breeder-summary evidenceH274 ↗
Individual founding parents and molecular inheritance of albino and fin length are not verifiedDifferentiation and explicit breeding-evidence uncertaintyH274 ↗

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.