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AQUAPEDIA / SOURCE-LINKED RESEARCH

Setugekka (Snow-Moon-Flowers)

雪月花

Historic Medaka breeder-documented selected varietyEvidence by claimIndependent review ongoing

Setugekka (Snow-Moon-Flowers): White lame exterior-light Hikari body with Swallow fin-ray extension and side-visible fin shine.

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: Setugekka (Snow-Moon-Flowers); Japanese romaji: not verified; Japanese characters: 雪月花. 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 1Blue Lame Miyuki selection (early base)REPORTED INPUT / STAGE 2Gekkou (body-form correction stage)REPORTED INPUT / STAGE 3White Lame Hikari Swallow (later cross)FOCAL STRAINAMERICAN / ENGLISH NAMESetugekka(Snow-Moon-Flowers)JAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)雪月花
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Three breeder-reported stages, not a single three-parent cross Source: Medaka WEB Zukan No.0864 — Yoshida Workshop's described breeding chronology

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View this strain’s illustrated gene tree in Discord ↗

Lineage review · Batch 015: Breeder-reported ancestry/selection stages have been added to the illustrated tree; these are documentary descriptions, not molecular inheritance results. Specialist source ↗

Overview

The source reproduces the original developer's staged program, starting with blue lame Miyuki, correcting Hikari body form with Gekkou inputs, and later incorporating White Lame Hikari Swallow This is a historical creator/source record, not verified DNA or authenticated current broodstock.

Claim-by-claim evidence

Research findingEvidence classDirect references
Specialist entry identifies Yoshida Workshop / 吉田工房 as credited origin and lists 2021.Specialist maker/year record; original registers independently uninspectedS864 ↗
White lame exterior-light Hikari body with Swallow fin-ray extension and side-visible fin shineSource-described phenotype, not a standardized diagnostic or genotype testS864 ↗
The source reproduces the original developer's staged program, starting with blue lame Miyuki, correcting Hikari body form with Gekkou inputs, and later incorporating White Lame Hikari SwallowPublished historical breeder account or attributed breeder-summary evidenceS864 ↗
The stages describe several crossings across generations, not direct simultaneous parent fish or a DNA-inferred alleleDifferentiation and explicit breeding-evidence uncertaintyS864 ↗

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

Known research gaps

  • Original parent-fish specimen identities, complete breeding ledgers and unambiguous first-sale dates remain unconfirmed.
  • No molecular evidence establishes trait inheritance or the breeding uniformity of retail stock named for this variety.
  • Photographs are source-owned and have not been rehosted; licensing review and photographer attribution are pending.

Related profiles and lineages

Original research sources

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