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AQUAPEDIA / SOURCE-LINKED RESEARCH

Golden Hikari (Hideyoshi)

黄金ヒカリメダカ / 秀吉

Medaka historically documented variety / house-selectionEvidence by claimIndependent review ongoing

An original-farm Hikari body-form selection of the Aki Ogon full-body golden Medaka, nicknamed Hideyoshi.

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: Golden Hikari (Hideyoshi); Japanese romaji: not verified; Japanese characters: 黄金ヒカリメダカ / 秀吉. Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Documented source links and evidence qualifiers follow the diagram.AQUAPEDIA / MEDAKA LINEAGE ATLASSTRAIN PEDIGREEREPORTED LINEAGEDASHED BRANCHES • REPORTED INPUTS / SELECTION STAGESNot an individual-fish pedigree or DNA / dominance test.REPORTED INPUT / STAGE 1Aki Ogon / Golden Medaka familyREPORTED INPUT / STAGE 2Hikari form selectionFOCAL STRAINAMERICAN / ENGLISH NAMEGolden Hikari (Hideyoshi)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)黄金ヒカリメダカ / 秀吉
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Selected Golden Medaka Hikari body form; original broodstock identities unknown Source: Medaka no Yakata historical catalog 2001, Hideyoshi form

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View this strain’s illustrated gene tree in Discord ↗

Lineage review · Batch 017: A breeder-recorded foundation, selection stage or form derivation is shown with dashed lines. The diagram is not DNA proof and may not identify individual parent fish. Specialist source ↗

Overview

An original-farm Hikari body-form selection of the Aki Ogon full-body golden Medaka, nicknamed Hideyoshi. Documentation and incomplete source history follow.

Claim-by-claim evidence

Research findingEvidence classDirect references
Creator / house credit: Yukio Oba / 大場幸雄, Hiroshima.Source-scoped maker or explicit unknownH78 ↗
The 2001 group identifies the full-body golden foundation Aki Ogon and its Hikari-form Hideyoshi derivative.Breeder-historical origin description; DNA not verifiedH78 ↗
Golden body pigmentation expressed in a Hikari-form silhouette; this is separate from Silvery Ginga.Source-described visual traits, not a molecular genotypeH78 ↗
Historical year of the Ogon foundation does not prove exactly when the Hikari subtype was first sold or genetically fixed. Archive scope: 2001 historical group; specific variant launch year unknown.Documentary distinction and publication-date limitationH78 ↗

Evidence labels refer to documentary strength. They do not assert independently tested genetics.

Known research gaps

  • Exact individually authenticated parent stock, all breeding generations and any stable genotype or inheritance ratio are unknown.
  • Historic year-group inclusion does not guarantee a breeder's actual first commercial sale year or present-day retail provenance.
  • Original fish photographs and source-owned images are not republished without explicit licensing.

Related profiles and lineages

Original research sources

Every row above links directly to its cited reference; publication or creation years are not interchangeable.