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AQUAPEDIA / SOURCE-LINKED RESEARCH

Ryokkou Miyuki

緑光幹之

Historically documented Japanese Medaka varietyEvidence by claimIndependent review ongoing

Blue Miyuki exterior light with a distinctive greenish impression from yellow-pigment distribution.

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: Ryokkou Miyuki; Japanese romaji: not verified; Japanese characters: 緑光幹之. 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 1Green Veil green-tinged source stock:reported Whole-body InternalLight-family x Yellow Miyuki, originalpairing uncertainFOCAL STRAINAMERICAN / ENGLISH NAMERyokkou MiyukiJAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)緑光幹之
Dashed connectors show breeder-reported input or selection history; they do not prove genetic parentage. Not a confirmed genotype or parent-fish identification.

Kamimura recognized greenish fish in Yamada/Green Veil stock c.2016; Aya (Somiya) helped select and stabilize Ryokkou. Yamada recalled Whole-body Internal Light and yellow Miyuki-like inputs but expressed uncertainty. Renamed from Ryokusa after Nekomanma introduction; original fish and F chronology unrecorded. Source: Pisces July 2018 breeder/keeper field interview on the Ryokkou source population

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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 specialist catalogue credits both original named developers for this light-and-color selection. Creator identity and lineage are limited to this cited specialist account.

Claim-by-claim evidence

Research findingEvidence classDirect references
The specialist identifies Takato Kamimura / 神村孝人 and Ayaka Somiya / 宗宮彩香 in the maker field; creation-year statement: 2016.Historically documented specialist attribution, breeder confirmation pendingr ↗
Blue Miyuki exterior light with a distinctive greenish impression from yellow-pigment distributionPublished visible-characteristic description, not a DNA assayr ↗
The specialist catalogue credits both original named developers for this light-and-color selectionSource historical-selection account, independently unchecked crossing logr ↗
Neither a DNA-verified green gene nor direct male-female founder stock is identifiedIdentity/date/genetics limitation preserved rather than inferredr ↗

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.