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AQUAPEDIA / SOURCE-LINKED RESEARCH

Pop-eye (Deme) Medaka — Early Record

出目メダカ

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

A historic Deme pop-eye ornamental form with prominent protruding eyes and a shortened eye-to-mouth facial span.

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: Pop-eye (Deme) Medaka — Early Record; Japanese romaji: not verified; Japanese characters: 出目メダカ. 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 NAMEPop-eye (Deme) Medaka —Early RecordJAPANESE NAME (ROMAJI)Not verifiedJAPANESE LETTERS (日本語)出目メダカ
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 19: The reviewed records do not establish a defensible breeding cross; picture ancestry remains disconnected. Original specialist source ↗

Overview

A historic Deme pop-eye ornamental form with prominent protruding eyes and a shortened eye-to-mouth facial span. Documentation and incomplete source history follow.

Claim-by-claim evidence

Research findingEvidence classDirect references
Creator / house credit: Breeder recorded only as Ohno / 大野, Saitama; full given name unknown.Source-scoped maker or explicit unknownH78 ↗
The early catalogue credits a breeder surname Ohno in Saitama and reports variable outward or upward eye direction.Breeder-historical origin description; DNA not verifiedH78 ↗
Protruding large-looking eyes and altered face proportions, with variable angle between individuals.Source-described visual traits, not a molecular genotypeH78 ↗
Early Deme Pop-eye is not the 2009 Niitani Pop-eye Big Eye selection; the historical record alone cannot establish genotype or individual eye health. Archive scope: 2005 historical group.Documentary distinction and publication-date limitationH78 ↗

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.