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AQUAPEDIA / SOURCE-LINKED RESEARCH

Black-gold Swallow Hikari (Shingen)

ブラック黄金スワローヒカリ / 信玄

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

Oba's Shingen adds golden fin coloration to a black-bodied Hikari Swallow selection, paired historically with Kenshin.

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: Black-gold Swallow Hikari (Shingen); Japanese romaji: not verified; Japanese characters: ブラック黄金スワローヒカリ / 信玄. 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 1Black ordinary-eye stock × Hikari formbreeding (Oba house)REPORTED INPUT / STAGE 22014 Swallow stock introduced into thehouse programmeREPORTED INPUT / STAGE 32016 selected black-gold fin SwallowHikari line (Shingen)FOCAL STRAINAMERICAN / ENGLISH NAMEBlack-gold Swallow Hikari(Shingen)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)ブラック黄金スワローヒカリ /信玄
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Multi-year historical programme; related to Kenshin but NOT a documented Kenshin x Shingen crossing Source: Medaka no Yakata, Yukio Oba's first-person Kenshin / Shingen origin history

Browse the larger Medaka lineage atlas ↗

View this strain’s illustrated gene tree in Discord ↗

Lineage recheck · Batch 025: Original breeder/archival account describes this stock origin or multigeneration selection. Dashed connectors document history, not DNA or individual fish parents. Source evidence ↗

Lineage review · Batch 016: The reviewed sources do not establish a defensible specific parent mating; the illustrated pedigree intentionally remains disconnected. Review Japanese specialist record ↗

Overview

Oba's Shingen adds golden fin coloration to a black-bodied Hikari Swallow selection, paired historically with Kenshin. 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 unknownH89 ↗ F54 ↗
The breeder's separate account says it stabilized the black and black-gold Swallow Hikari house lines and named them Kenshin/Shingen in 2016.Breeder-historical origin description; DNA not verifiedH89 ↗ F54 ↗
Black body, gold-colored fins, Hikari body form and localized Swallow-style extended fin rays.Source-described visual traits, not a molecular genotypeH89 ↗ F54 ↗
Shingen and Kenshin are documented counterpart selected house lines, not synonyms; the source does not document a direct Kenshin × Shingen cross. Archive scope: 2016 historical group and first-person breeder account.Documentary distinction and publication-date limitationH89 ↗ F54 ↗

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.