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AQUAPEDIA / SOURCE-LINKED RESEARCH

Silky Internal Light (Koyuki)

シルキー体内光 / 小雪

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

Oba's cream-tinted Silky house expression with pastel, mint-green-looking internal reflective light.

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: Silky Internal Light (Koyuki); Japanese romaji: not verified; Japanese characters: シルキー体内光 / 小雪. 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 NAMESilky Internal Light (Koyuki)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)シルキー体内光 / 小雪
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 20: The reviewed records do not establish a defensible breeding cross; picture ancestry remains disconnected. Original specialist source ↗

Overview

Oba's cream-tinted Silky house expression with pastel, mint-green-looking internal reflective light. 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 ↗
The catalogue describes off-white/yellow-tinged Silky pigmentation and a mint-green-like internal-light appearance rather than an independent light source.Breeder-historical origin description; DNA not verifiedH89 ↗
Creamy white body and pastel greenish internal reflection, subject to breeder/lighting conditions.Source-described visual traits, not a molecular genotypeH89 ↗
The catalogue's suggestion about yellow pigment cells is a visual hypothesis; do not assert a fixed allele or bioluminescence. Archive scope: 2017 historical group.Documentary distinction and publication-date limitationH89 ↗

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.