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AQUAPEDIA / SOURCE-LINKED RESEARCH

Youkihi Albino (Igawa)

楊貴妃アルビノ

Historically documented Japanese Medaka varietyEvidence by claimIndependent review ongoing

Orange-to-vermilion albino body with pale or translucent red eyes.

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: Youkihi Albino (Igawa); Japanese romaji: not verified; Japanese characters: 楊貴妃アルビノ. 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 1Yellow Albino Medaka stock, repeatedlyselected for deeper red-orange colorFOCAL STRAINAMERICAN / ENGLISH NAMEYoukihi Albino (Igawa)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)楊貴妃アルビノ
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Reported multi-year color selection from yellow albino family; NOT a documented Youkihi × Albino cross or locus test Source: Medaka WEB Zukan No.0593 — Igawa Youkihi Albino (2012)

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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 catalogue describes selecting yellow albino individuals toward deeper orange and vermilion color. Creator identity and lineage are limited to this cited specialist account.

Claim-by-claim evidence

Research findingEvidence classDirect references
The specialist identifies Shigenobu Igawa / 井川重信 (romanization provisional) in the maker field; creation-year statement: 2012.Historically documented specialist attribution, breeder confirmation pendingy ↗
Orange-to-vermilion albino body with pale or translucent red eyesPublished visible-characteristic description, not a DNA assayy ↗
The catalogue describes selecting yellow albino individuals toward deeper orange and vermilion colorSource historical-selection account, independently unchecked crossing logy ↗
Breeder-reported inheritance figures cannot guarantee offspring colors or live-animal outcomesIdentity/date/genetics limitation preserved rather than inferredy ↗

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

Known research gaps

  • No complete original breeder parent-fish ledger or independent molecular genotype assay has been reviewed.
  • The listed creator/year do not authenticate present-day retail stock or independently establish first commercial sale.
  • Photographs on the specialist site are not licensed for reproduction and have not been copied.

Related profiles and lineages

Original research sources

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