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AQUAPEDIA / SOURCE-LINKED RESEARCH

Shiro Kujyaku

白孔雀

Medaka breeder-documented house lineEvidence by claimIndependent review ongoing

Shiotsuki reports selecting Hikari-bodied Shiro Kujyaku following Headlight Miyuki × Zen and a Dragon Blue cross.

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: Shiro Kujyaku; Japanese romaji: not verified; Japanese characters: 白孔雀. 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 1Headlight Miyuki × ZenREPORTED INPUT / STAGE 2F2 longfin appearanceREPORTED INPUT / STAGE 3Later cross to Dragon BlueFOCAL STRAINAMERICAN / ENGLISH NAMEShiro KujyakuJAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)白孔雀
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Headlight Miyuki x Zen at F2, later Dragon Blue introduction Source: Shiotsuki breeder-submitted Shiro Kujyaku history

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View this strain’s illustrated gene tree in Discord ↗

Lineage review · Batch 20: Historical source describes the breeding stock or selected form shown by dashed connections. This does not establish individual parentage, genotype, or dominance. Original specialist source ↗

Overview

Shiotsuki reports selecting Hikari-bodied Shiro Kujyaku following Headlight Miyuki × Zen and a Dragon Blue cross. The gallery credits Kazuki Shiotsuki as creator credited in breeder-submitted gallery. The distinction between creator, house-line selector and older parent-stock developers remains important.

Claim-by-claim evidence

Research findingEvidence classDirect references
Breeder credit: Kazuki Shiotsuki, described as creator credited in breeder-submitted gallery.Breeder-submitted first-party report; independent corroboration pendingG1 ↗
Reported selection inputs or ancestry: Headlight Miyuki × Zen, F2 longfin observed; crossed with Dragon Blue.Breeder-described genealogy; not a molecular pedigreeG1 ↗
Reported appearance or target expression: Longfin expression in reported F2 source; house name reserved for Hikari body-form selection.Breeder phenotype description; not a standardized diagnostic testG1 ↗
No independently dated original announcement or release year is provided.Date scope: gallery or cited magazine context onlyG1 ↗

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

Known research gaps

  • F2 refers to a reported selection generation, not to genetic fixation or a universal phenotype ratio.
  • Original-source breeder narratives cannot authenticate the actual fish sold under the label or establish Mendelian inheritance.
  • A complete first-sale timeline, actual mating and selected-generation logs, licensed photographs and independent secondary review are unavailable.

Related profiles and lineages

Original research sources

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